carl9170fw.git
18 months agowifi: mac80211: Align with Draft P802.11be_D2.0
Ilan Peer [Wed, 1 Jun 2022 14:43:34 +0000 (17:43 +0300)]
wifi: mac80211: Align with Draft P802.11be_D2.0

Align the mac80211 implementation with P802.11be_D2.0.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
18 months agowifi: mac80211: Align with Draft P802.11be_D1.5
Ilan Peer [Wed, 27 Apr 2022 15:02:10 +0000 (18:02 +0300)]
wifi: mac80211: Align with Draft P802.11be_D1.5

Align the mac80211 implementation with P802.11be_D1.5.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
18 months agowifi: ieee80211: s1g action frames are not robust
Peter Chiu [Wed, 22 Jun 2022 01:08:20 +0000 (09:08 +0800)]
wifi: ieee80211: s1g action frames are not robust

S1g action frame with code 22 is not protected so update the robust
action frame list.

Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Link: https://lore.kernel.org/r/20220622010820.17522-1-chui-hao.chiu@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
18 months agowifi: ieee80211: add definitions for multi-link element
Johannes Berg [Tue, 31 May 2022 12:03:38 +0000 (14:03 +0200)]
wifi: ieee80211: add definitions for multi-link element

Add the definitions necessary to build and parse some of the
multi-link element, the per-STA profile isn't fully included.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
18 months agowifi: cfg80211: do some rework towards MLO link APIs
Johannes Berg [Thu, 14 Apr 2022 14:50:57 +0000 (16:50 +0200)]
wifi: cfg80211: do some rework towards MLO link APIs

In order to support multi-link operation with multiple links,
start adding some APIs. The notable addition here is to have
the link ID in a new nl80211 attribute, that will be used to
differentiate the links in many nl80211 operations.

So far, this patch adds the netlink NL80211_ATTR_MLO_LINK_ID
attribute (as well as the NL80211_ATTR_MLO_LINKS attribute)
and plugs it through the system in some places, checking the
validity etc. along with other infrastructure needed for it.

For now, I've decided to include only the over-the-air link
ID in the API. I know we discussed that we eventually need to
have to have other ways of identifying a link, but for local
AP mode and auth/assoc commands as well as set_key etc. we'll
use the OTA ID.

Also included in this patch is some refactoring of the data
structures in struct wireless_dev, splitting for the first
time the data into type dependent pieces, to make reasoning
about these things easier.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
18 months agoieee80211: add trigger frame definition
Po Hao Huang [Wed, 8 Jun 2022 11:32:22 +0000 (19:32 +0800)]
ieee80211: add trigger frame definition

Define trigger stype of control frame, and its checking function, struct
and trigger type within common_info of trigger.

Signed-off-by: Po Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220608113224.11193-2-pkshih@realtek.com
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
18 months agocompiler: support get_bits/replace_bits,sizeof_field,offsetofend,struct_group etc.
Christian Lamparter [Sun, 21 May 2023 20:48:29 +0000 (22:48 +0200)]
compiler: support get_bits/replace_bits,sizeof_field,offsetofend,struct_group etc.

Taken from linux. Removed be* support.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
18 months agocarl9170 toolchain: update gcc to 13.1 / newlib 4.3
Christian Lamparter [Sun, 21 May 2023 20:23:11 +0000 (22:23 +0200)]
carl9170 toolchain: update gcc to 13.1 / newlib 4.3

gcc 13.1 seems to generate working firmwares again.
and remove old SHA256SUMs.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
20 months agowifi: carl9170: Replace fake flex-array with flexible-array member
Gustavo A. R. Silva [Fri, 17 Mar 2023 17:39:36 +0000 (11:39 -0600)]
wifi: carl9170: Replace fake flex-array with flexible-array member

Zero-length arrays as fake flexible arrays are deprecated and we are
moving towards adopting C99 flexible-array members instead.

Address the following warnings found with GCC-13 and
-fstrict-flex-arrays=3 enabled:
include/shared/tx.c:702:61: warning: array subscript i is outside array bounds of ‘const struct _carl9170_tx_status[0]’ [-Warray-bounds=]
include/shared/tx.c:701:65: warning: array subscript i is outside array bounds of ‘const struct _carl9170_tx_status[0]’ [-Warray-bounds=]

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [1].

Link: https://github.com/KSPP/linux/issues/21
Link: https://github.com/KSPP/linux/issues/267
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
21 months agocarl9170 toolchain: revert back to gcc 11.3
Christian Lamparter [Thu, 2 Feb 2023 22:09:45 +0000 (23:09 +0100)]
carl9170 toolchain: revert back to gcc 11.3

the binary produced by gcc 12 do not work.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
21 months agocarl9170 toolchain: update gcc to binutils, mpc and mpfr
Christian Lamparter [Thu, 2 Feb 2023 20:52:37 +0000 (21:52 +0100)]
carl9170 toolchain: update gcc to binutils, mpc and mpfr

and remove old SHA256SUMs.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agocarl9170: Replace zero-length array of trailing structs with flex-array
Kees Cook [Fri, 18 Nov 2022 21:11:47 +0000 (13:11 -0800)]
carl9170: Replace zero-length array of trailing structs with flex-array

Zero-length arrays are deprecated[1] and are being replaced with
flexible array members in support of the ongoing efforts to tighten the
FORTIFY_SOURCE routines on memcpy(), correctly instrument array indexing
with UBSAN_BOUNDS, and to globally enable -fstrict-flex-arrays=3.

Replace zero-length array with flexible-array member.

This results in no differences in binary output.

[1] https://github.com/KSPP/linux/issues/78

Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agobuild: set cmake min version to 3.0 to fix deprecation warning
Christian Lamparter [Thu, 29 Sep 2022 19:53:34 +0000 (21:53 +0200)]
build: set cmake min version to 3.0 to fix deprecation warning

| Compatibility with CMake < 2.8.12 will be removed from a future version of
| CMake.
|
| Update the VERSION argument <min> value or use a ...<max> suffix to tell
| CMake that the project does not need compatibility with older versions.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoAdd an AppStream metadata file
John Scott [Sat, 24 Apr 2021 14:23:42 +0000 (10:23 -0400)]
Add an AppStream metadata file

This can be distributed by distros to help software centers and
users find the packages which contain the firmware, say, when
the device is inserted.
Signed-off-by: John Scott <jscott@posteo.net>
2 years agocarl9170 toolchain: update gcc to 12.2 / binutils 2.39
Christian Lamparter [Mon, 26 Sep 2022 21:36:56 +0000 (23:36 +0200)]
carl9170 toolchain: update gcc to 12.2 / binutils 2.39

and remove old SHA256SUMs.

Also silences a linker warning that shows up:
|ld: warning: carl9170.elf has a LOAD segment with RWX permissions

unfortunately, yes. The embedded CPU has no MMU to make use of this.
So, the warning is turned off.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoiwlwifi: mvm: refactor setting PPE thresholds in STA_HE_CTXT_CMD
Miri Korenblit [Sat, 5 Feb 2022 09:21:36 +0000 (11:21 +0200)]
iwlwifi: mvm: refactor setting PPE thresholds in STA_HE_CTXT_CMD

We are setting the PPE Thresholds in STA_HE_CTXT_CMD according
to HE PHY Capabilities IE. As EHT is introduced, we will have to
set this thresholds according to EHT PHY Capabilities IE if we're
in an EHT connection. Some parts of the code can be used for both
HE and EHT. Put this parts in functions which will be used in the
patch which adds support for EHT PPE.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220205112029.48a508dfffef.If392e44d88f96ebed7fadf827e327194d4bd97b1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add EHT 1K aggregation definitions
Mordechay Goodstein [Mon, 14 Feb 2022 16:29:52 +0000 (17:29 +0100)]
ieee80211: add EHT 1K aggregation definitions

We add the fields for parsing extended ADDBA request/respond,
and new max 1K aggregation for limit ADDBA request/respond.

Adjust drivers to use the proper macro, IEEE80211_MAX_AMPDU_BUF ->
IEEE80211_MAX_AMPDU_BUF_HE.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Link: https://lore.kernel.org/r/20220214173004.b8b447ce95b7.I0ee2554c94e89abc7a752b0f7cc7fd79c273efea@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: Add EHT (802.11be) definitions
Ilan Peer [Mon, 14 Feb 2022 16:29:51 +0000 (17:29 +0100)]
ieee80211: Add EHT (802.11be) definitions

Based on Draft P802.11be_D1.4.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Link: https://lore.kernel.org/r/20220214173004.928e23cacb2b.Id30a3ef2844b296efbd5486fe1da9ca36a95c5cf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add helper to check HE capability element size
Johannes Berg [Mon, 14 Feb 2022 16:29:21 +0000 (17:29 +0100)]
ieee80211: add helper to check HE capability element size

This element has a very dynamic structure, create a small helper
function to validate its size. We're currently checking it in
mac80211 in a conversion function, but that's actually slightly
buggy.

Link: https://lore.kernel.org/r/20220214172920.750bee9eaf37.Ie18359bd38143b7dc949078f10752413e6d36854@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: use tab to indent struct ieee80211_neighbor_ap_info
Johannes Berg [Thu, 10 Feb 2022 19:12:43 +0000 (20:12 +0100)]
ieee80211: use tab to indent struct ieee80211_neighbor_ap_info

Somehow spaces were used here, use tab instead.

Link: https://lore.kernel.org/r/20220210201242.da8fa2e5ae8d.Ia452db01876e52e815f6337fef437049df0d8bd9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: fix -Wcast-qual warnings
Johannes Berg [Wed, 2 Feb 2022 08:49:38 +0000 (10:49 +0200)]
ieee80211: fix -Wcast-qual warnings

When enabling -Wcast-qual e.g. via W=3, we get a lot of
warnings from this file, whenever it's included. Since
the fixes are simple, just do that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220202104617.79ec4a4bab29.I8177a0c79d656c552e22c88931d8da06f2977896@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: change HE nominal packet padding value defines
Miri Korenblit [Fri, 26 Nov 2021 09:48:19 +0000 (10:48 +0100)]
ieee80211: change HE nominal packet padding value defines

It's easier to use and understand, and to extend for EHT later,
if we use the values here instead of the shifted values.

Unfortunately, we need to add _POS so that we can use it in
places like iwlwifi/mvm where constants are needed.

While at it, fix the typo ("NOMIMAL") which also helps catch any
conflicts.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://lore.kernel.org/r/20211126104817.7c29a05b8eb5.I2ca9faf06e177e3035bec91e2ae53c2f91d41774@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agotreewide: Replace 0-element memcpy() destinations with flexible arrays
Kees Cook [Fri, 13 Aug 2021 19:19:24 +0000 (12:19 -0700)]
treewide: Replace 0-element memcpy() destinations with flexible arrays

The 0-element arrays that are used as memcpy() destinations are actually
flexible arrays. Adjust their structures accordingly so that memcpy()
can better reason able their destination size (i.e. they need to be seen
as "unknown" length rather than "zero").

In some cases, use of the DECLARE_FLEX_ARRAY() helper is needed when a
flexible array is alone in a struct.

Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: GR-QLogic-Storage-Upstream@marvell.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Phillip Potter <phil@philpotter.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Fabio Aiuto <fabioaiuto83@gmail.com>
Cc: Ross Schmidt <ross.schm.dev@gmail.com>
Cc: Marco Cesati <marcocesati@gmail.com>
Cc: ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-staging@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: Add new A-MPDU factor macro for HE 6 GHz peer caps
Pradeep Kumar Chitrapu [Tue, 28 Sep 2021 11:00:45 +0000 (14:00 +0300)]
ieee80211: Add new A-MPDU factor macro for HE 6 GHz peer caps

Add IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR as per IEEE Std 802.11ax-2021,
9.4.2.263 to use for peer max A-MPDU factor in 6 GHz band.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210913175510.193005-1-jouni@codeaurora.org
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add power type definition for 6 GHz
Wen Gong [Fri, 24 Sep 2021 10:00:47 +0000 (06:00 -0400)]
ieee80211: add power type definition for 6 GHz

6 GHz regulatory domains introduces different modes for 6 GHz AP
operations: Low Power Indoor (LPI), Standard Power (SP) and Very
Low Power (VLP). 6 GHz STAs could be operated as either Regular or
Subordinate clients. Define the flags for power type
of AP and STATION mode.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/20210924100052.32029-2-wgong@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add definition for transmit power envelope element
Wen Gong [Fri, 20 Aug 2021 12:20:39 +0000 (08:20 -0400)]
ieee80211: add definition for transmit power envelope element

IEEE Std 802.11ax™-2021 makes changes to the transmit power envelope
element, adjust the code accordingly.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/20210820122041.12157-7-wgong@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add definition of regulatory info in 6 GHz operation information
Wen Gong [Fri, 20 Aug 2021 12:20:35 +0000 (08:20 -0400)]
ieee80211: add definition of regulatory info in 6 GHz operation information

IEEE Std 802.11ax™-2021 added regulatory info subfield in HE operation
element, add it to the header file.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/20210820122041.12157-3-wgong@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add TWT element definitions
Lorenzo Bianconi [Mon, 23 Aug 2021 18:02:38 +0000 (20:02 +0200)]
ieee80211: add TWT element definitions

Introduce TWT definitions and TWT Information element structure
in ieee80211.h

Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/71d8b581fe4b5abc5b92f8d77ac2de3e2f7591b6.1629741512.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add defines for HE PHY cap byte 10
Johannes Berg [Fri, 18 Jun 2021 10:41:38 +0000 (13:41 +0300)]
ieee80211: add defines for HE PHY cap byte 10

One bit out of the previously completely reserved byte 10 in
the PHY capabilities is used since 802.11ax D7.0, add a new
define for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.c026feb3873d.I380f52a05ddb4153bc77ff7f276a3484819f69b2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: define timing measurement in extended capabilities IE
Krishnanand Prabhu [Fri, 18 Jun 2021 10:41:28 +0000 (13:41 +0300)]
ieee80211: define timing measurement in extended capabilities IE

Define the bit used for timing measurement support in extended
capabilities IE, used for time synchronization.

Signed-off-by: Krishnanand Prabhu <krishnanand.prabhu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.b75f40765538.I92b50e43e29272c97d17ed5f37f216f4caf0f205@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add the value for Category '6' in "rtw_ieee80211_category"
Christophe JAILLET [Sat, 19 Jun 2021 13:36:30 +0000 (15:36 +0200)]
ieee80211: add the value for Category '6' in "rtw_ieee80211_category"

Preparation work for removing the "enum rtw_ieee80211_category" in
"drivers/staging/rtl8188eu/include/ieee80211.h" and
"drivers/staging/rtl8723bs/include/ieee80211.h".

This enum is similar to "enum ieee80211_category" from
"include/linux/ieee80211.h". However it defines the value '6' as
RTW_WLAN_CATEGORY_FT.

So add a corresponding value in "ieee80211_category"

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/66be0187869bd7dae1c0b0785a32db695ee9872e.1624108556.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agowireless: fix spelling of A-MSDU in HE capabilities
Johannes Berg [Fri, 9 Apr 2021 09:40:24 +0000 (12:40 +0300)]
wireless: fix spelling of A-MSDU in HE capabilities

In the HE capabilities, spell A-MSDU correctly, not "A-MDSU".

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.9e6ff1af1181.If6868bc6902ccd9a95c74c78f716c4b41473ef14@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agowireless: align HE capabilities A-MPDU Length Exponent Extension
Johannes Berg [Fri, 9 Apr 2021 09:40:20 +0000 (12:40 +0300)]
wireless: align HE capabilities A-MPDU Length Exponent Extension

The A-MPDU length exponent extension is defined differently in
802.11ax D6.1, align with that.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.c2a257d3e2df.I3455245d388c52c61dace7e7958dbed7e807cfb6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agowireless: align some HE capabilities with the spec
Johannes Berg [Fri, 9 Apr 2021 09:40:17 +0000 (12:40 +0300)]
wireless: align some HE capabilities with the spec

Some names were changed, align that with the spec as of
802.11ax-D6.1.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.b1e5fbab0d8c.I3eb6076cb0714ec6aec6b8f9dee613ce4a05d825@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agoieee80211: add the values of ranging parameters max LTF total field
Avraham Stern [Fri, 9 Apr 2021 09:40:26 +0000 (12:40 +0300)]
ieee80211: add the values of ranging parameters max LTF total field

Add an enum with the values of the ranging parameters max LTF total
field, as defined in IEEE802.11az_D2.6, table Table 9-322h23fc.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.d2588ebb1974.I9424c8ade13c4c938cb9999d8ce99d0d4c1cc198@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agocarl9170: add hweight and fieldmax from the linux kernel
Christian Lamparter [Fri, 6 May 2022 12:00:36 +0000 (14:00 +0200)]
carl9170: add hweight and fieldmax from the linux kernel

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agostddef: Introduce DECLARE_FLEX_ARRAY() helper
Kees Cook [Mon, 9 Aug 2021 18:21:23 +0000 (11:21 -0700)]
stddef: Introduce DECLARE_FLEX_ARRAY() helper

There are many places where kernel code wants to have several different
typed trailing flexible arrays. This would normally be done with multiple
flexible arrays in a union, but since GCC and Clang don't (on the surface)
allow this, there have been many open-coded workarounds, usually involving
neighboring 0-element arrays at the end of a structure. For example,
instead of something like this:

struct thing {
...
union {
struct type1 foo[];
struct type2 bar[];
};
};

code works around the compiler with:

struct thing {
...
struct type1 foo[0];
struct type2 bar[];
};

Another case is when a flexible array is wanted as the single member
within a struct (which itself is usually in a union). For example, this
would be worked around as:

union many {
...
struct {
struct type3 baz[0];
};
};

These kinds of work-arounds cause problems with size checks against such
zero-element arrays (for example when building with -Warray-bounds and
-Wzero-length-bounds, and with the coming FORTIFY_SOURCE improvements),
so they must all be converted to "real" flexible arrays, avoiding warnings
like this:

fs/hpfs/anode.c: In function 'hpfs_add_sector_to_btree':
fs/hpfs/anode.c:209:27: warning: array subscript 0 is outside the bounds of an interior zero-length array 'struct bplus_internal_node[0]' [-Wzero-length-bounds]
  209 |    anode->btree.u.internal[0].down = cpu_to_le32(a);
      |    ~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from fs/hpfs/hpfs_fn.h:26,
                 from fs/hpfs/anode.c:10:
fs/hpfs/hpfs.h:412:32: note: while referencing 'internal'
  412 |     struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
      |                                ^~~~~~~~

drivers/net/can/usb/etas_es58x/es58x_fd.c: In function 'es58x_fd_tx_can_msg':
drivers/net/can/usb/etas_es58x/es58x_fd.c:360:35: warning: array subscript 65535 is outside the bounds of an interior zero-length array 'u8[0]' {aka 'unsigned char[]'} [-Wzero-length-bounds]
  360 |  tx_can_msg = (typeof(tx_can_msg))&es58x_fd_urb_cmd->raw_msg[msg_len];
      |                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/can/usb/etas_es58x/es58x_core.h:22,
                 from drivers/net/can/usb/etas_es58x/es58x_fd.c:17:
drivers/net/can/usb/etas_es58x/es58x_fd.h:231:6: note: while referencing 'raw_msg'
  231 |   u8 raw_msg[0];
      |      ^~~~~~~

However, it _is_ entirely possible to have one or more flexible arrays
in a struct or union: it just has to be in another struct. And since it
cannot be alone in a struct, such a struct must have at least 1 other
named member -- but that member can be zero sized. Wrap all this nonsense
into the new DECLARE_FLEX_ARRAY() in support of having flexible arrays
in unions (or alone in a struct).

As with struct_group(), since this is needed in UAPI headers as well,
implement the core there, with a non-UAPI wrapper.

Additionally update kernel-doc to understand its existence.

https://github.com/KSPP/linux/issues/137

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agocarl9170 toolchain: update gcc to 12.1 / binutils 2.38
Christian Lamparter [Fri, 6 May 2022 11:02:48 +0000 (13:02 +0200)]
carl9170 toolchain: update gcc to 12.1 / binutils 2.38

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2 years agocarl9170: Replace zero-length arrays with flexible-array members
Gustavo A. R. Silva [Wed, 16 Feb 2022 19:49:55 +0000 (13:49 -0600)]
carl9170: Replace zero-length arrays with flexible-array members

There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocarl9170 toolchain: update gcc to 11.2 / binutils 2.37
Christian Lamparter [Fri, 3 Sep 2021 09:10:54 +0000 (11:10 +0200)]
carl9170 toolchain: update gcc to 11.2 / binutils 2.37

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocarl9170 toolchain: update gcc to 11.1
Christian Lamparter [Sat, 1 May 2021 19:43:13 +0000 (21:43 +0200)]
carl9170 toolchain: update gcc to 11.1

All the way to 11!

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocarl9170 firmware build: remove byproducts carl9170's dsc bin files
Christian Lamparter [Sat, 13 Feb 2021 11:42:09 +0000 (12:42 +0100)]
carl9170 firmware build: remove byproducts carl9170's dsc bin files

These files are produced as part of the firmware built. These
should be removed by "make clean".

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocarl9170 firmware miniboot: remove miniboot.fw on make clean
Christian Lamparter [Sat, 13 Feb 2021 11:44:59 +0000 (12:44 +0100)]
carl9170 firmware miniboot: remove miniboot.fw on make clean

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocarl9170 toolchain: update binutils, mprf, gmp, newlib, mpc
Christian Lamparter [Sat, 13 Feb 2021 09:49:18 +0000 (10:49 +0100)]
carl9170 toolchain: update binutils, mprf, gmp, newlib, mpc

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocarl9170 firmware build: explicitly list carl9170.elf in dependency
Christian Lamparter [Sat, 13 Feb 2021 10:05:07 +0000 (11:05 +0100)]
carl9170 firmware build: explicitly list carl9170.elf in dependency

This should fix build errors like:

sh-elf-objcopy: 'carl9170.elf': No such file
make[2]: *** [carlfw/CMakeFiles/firmware.dir/build.make:76: firmware] Error 1
make[1]: *** [CMakeFiles/Makefile2:204: carlfw/CMakeFiles/firmware.dir/all] Error 2
make: *** [Makefile:103: all] Error 2

no idea what broke in cmake there.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: fix return value of do_error_if()
Masahiro Yamada [Sat, 19 Dec 2020 18:18:42 +0000 (03:18 +0900)]
kconfig: fix return value of do_error_if()

$(error-if,...) is expanded to an empty string. Currently, it relies on
eval_clause() returning xstrdup("") when all attempts for expansion fail,
but the correct implementation is to make do_error_if() return xstrdup("").

Fixes: 1d6272e6fe43 ("kconfig: add 'info', 'warning-if', and 'error-if' built-in functions")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: clean up header inclusion
Boris Kolpackov [Mon, 23 Nov 2020 09:38:18 +0000 (11:38 +0200)]
kconfig: clean up header inclusion

- Add missing includes.
- Remove no longer necessary includes.

Signed-off-by: Boris Kolpackov <boris@codesynthesis.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: make lkc.h self-sufficient #include-wise
Boris Kolpackov [Thu, 29 Oct 2020 15:51:51 +0000 (17:51 +0200)]
kconfig: make lkc.h self-sufficient #include-wise

Signed-off-by: Boris Kolpackov <boris@codesynthesis.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: qconf: fix incomplete type 'struct gstr' warning
Masahiro Yamada [Tue, 8 Sep 2020 22:16:38 +0000 (07:16 +0900)]
kconfig: qconf: fix incomplete type 'struct gstr' warning

"make HOSTCXX=clang++ xconfig" reports the following:

  HOSTCXX scripts/kconfig/qconf.o
In file included from scripts/kconfig/qconf.cc:23:
In file included from scripts/kconfig/lkc.h:15:
scripts/kconfig/lkc_proto.h:26:13: warning: 'get_relations_str' has C-linkage specified, but returns incomplete type 'struct gstr' which could be incompatible with C [-Wreturn-type-c-linkage]
struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
            ^

Currently, get_relations_str() is declared before the struct gstr
definition.

Move all declarations of menu.c functions below.

BTW, some are declared in lkc.h and some in lkc_proto.h, but the
difference is unclear. I guess some refactoring is needed.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Boris Kolpackov <boris@codesynthesis.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: add 'static' to some file-local data
Masahiro Yamada [Wed, 29 Jul 2020 03:18:37 +0000 (12:18 +0900)]
kconfig: add 'static' to some file-local data

Fix some warnings from sparce like follows:

  warning: symbol '...' was not declared. Should it be static?

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: remove '---help---' support
Masahiro Yamada [Wed, 17 Jun 2020 03:02:19 +0000 (12:02 +0900)]
kconfig: remove '---help---' support

The conversion is done. No more user of '---help---'.

Cc: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocarl9170 firmware: replace ---help--- with help syntax
Christian Lamparter [Fri, 5 Feb 2021 11:03:09 +0000 (12:03 +0100)]
carl9170 firmware: replace ---help--- with help syntax

upstream kconfig is replacing the ---help--- command syntax with help.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: allow only 'config', 'comment', and 'if' inside 'choice'
Masahiro Yamada [Fri, 24 Apr 2020 05:49:29 +0000 (14:49 +0900)]
kconfig: allow only 'config', 'comment', and 'if' inside 'choice'

The code block surrounded by 'if' ... 'endif' is reduced into if_stmt,
which is accepted in the 'choice' context. Therefore, you can write any
statements within a choice block by wrapping 'if y' ... 'end'.

For example, you can create a menu inside a choice, like follows:

---------------->8----------------
  choice
          prompt "choice"

  config A
          bool "A"

  config B
          bool "B"

  if y

  menu "strange menu"

  config C
          bool "C"

  endmenu

  endif

  endchoice
---------------->8----------------

I want to change such a weird structure into a syntax error.

In fact, the USB gadget Kconfig had used nested 'choice' for no good
reason until commit df8df5e4bc37 ("usb: get rid of 'choice' for
legacy gadget drivers") killed it.

I think the 'source' inside 'choice' is on the fence. It is at least
gramatically sensible as long as the included file contains only
bool/tristate configs. However, it makes the code unreadable, and people
tend to forget the fact that the file is included from the choice
block. Commit 10e5e6c24963 ("usb: gadget: move choice ... endchoice to
legacy/Kconfig") got rid of the only usecase.

Going forward, you can only use 'config', 'comment', and 'if' inside
'choice'. This also recursively applies to 'if' blocks inside 'choice'.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: do not assign a variable in the return statement
Masahiro Yamada [Mon, 13 Apr 2020 15:35:42 +0000 (00:35 +0900)]
kconfig: do not assign a variable in the return statement

I am not a big fan of doing assignment in a return statement.
Split it into two lines.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: do not use OR-assignment for zero-cleared structure
Masahiro Yamada [Mon, 13 Apr 2020 15:33:20 +0000 (00:33 +0900)]
kconfig: do not use OR-assignment for zero-cleared structure

The simple assignment is enough because memset() three lines above
has zero-cleared the structure.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years ago.gitignore: add SPDX License Identifier
Masahiro Yamada [Tue, 3 Mar 2020 13:35:59 +0000 (22:35 +0900)]
.gitignore: add SPDX License Identifier

Add SPDX License Identifier to all .gitignore files.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: make 'imply' obey the direct dependency
Masahiro Yamada [Mon, 2 Mar 2020 06:23:40 +0000 (15:23 +0900)]
kconfig: make 'imply' obey the direct dependency

The 'imply' statement may create unmet direct dependency when the
implied symbol depends on m.

[Test Code]

  config FOO
          tristate "foo"
          imply BAZ

  config BAZ
          tristate "baz"
          depends on BAR

  config BAR
          def_tristate m

  config MODULES
          def_bool y
          option modules

If you set FOO=y, BAZ is also promoted to y, which results in the
following .config file:

  CONFIG_FOO=y
  CONFIG_BAZ=y
  CONFIG_BAR=m
  CONFIG_MODULES=y

This does not meet the dependency 'BAZ depends on BAR'.

Unlike 'select', what is worse, Kconfig never shows the
'WARNING: unmet direct dependencies detected for ...' for this case.

Because 'imply' is considered to be weaker than 'depends on', Kconfig
should take the direct dependency into account.

For clarification, describe this case in kconfig-language.rst too.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: allow symbols implied by y to become m
Masahiro Yamada [Mon, 2 Mar 2020 06:23:39 +0000 (15:23 +0900)]
kconfig: allow symbols implied by y to become m

The 'imply' keyword restricts a symbol to y or n, excluding m
when it is implied by y. This is the original behavior since
commit 237e3ad0f195 ("Kconfig: Introduce the "imply" keyword").

However, the author of this feature, Nicolas Pitre, stated that
the 'imply' keyword should not impose any restrictions.
(https://lkml.org/lkml/2020/2/19/714)

I agree, and want to get rid of this tricky behavior.

Suggested-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: Invalidate all symbols after changing to y or m.
Tetsuo Handa [Tue, 4 Feb 2020 04:08:44 +0000 (13:08 +0900)]
kconfig: Invalidate all symbols after changing to y or m.

Since commit 89b9060987d9 ("kconfig: Add yes2modconfig and
mod2yesconfig targets.") forgot to clear SYMBOL_VALID bit after
changing to y or m, these targets did not save the changes.
Call sym_clear_all_valid() so that all symbols are revalidated.

Fixes: 89b9060987d9 ("kconfig: Add yes2modconfig and mod2yesconfig targets.")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: fix broken dependency in randconfig-generated .config
Masahiro Yamada [Sat, 1 Feb 2020 05:03:11 +0000 (14:03 +0900)]
kconfig: fix broken dependency in randconfig-generated .config

Running randconfig on arm64 using KCONFIG_SEED=0x40C5E904 (e.g. on v5.5)
produces the .config with CONFIG_EFI=y and CONFIG_CPU_BIG_ENDIAN=y,
which does not meet the !CONFIG_CPU_BIG_ENDIAN dependency.

This is because the user choice for CONFIG_CPU_LITTLE_ENDIAN vs
CONFIG_CPU_BIG_ENDIAN is set by randomize_choice_values() after the
value of CONFIG_EFI is calculated.

When this happens, the has_changed flag should be set.

Currently, it takes the result from the last iteration. It should
accumulate all the results of the loop.

Fixes: 3b9a19e08960 ("kconfig: loop as long as we changed some symbols in randconfig")
Reported-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: fix nesting of symbol help text
Thomas Hebb [Tue, 17 Dec 2019 16:15:45 +0000 (08:15 -0800)]
kconfig: fix nesting of symbol help text

When we generate the help text of a symbol (e.g. when a user presses '?'
in menuconfig), we do two things:

 1. We iterate through every prompt that belongs to that symbol,
    printing its text and its location in the menu tree.
 2. We print symbol-wide information that's not linked to a particular
    prompt, such as what it selects/is selected by and what it
    implies/is implied by.

Each prompt we print for 1 starts with a line that's not indented
indicating where the prompt is defined, then continues with indented
lines that describe properties of that particular definition.

Once we get to 2, however, we print all the global data indented as
well! Visually, this makes it look like the symbol-wide data is
associated with the last prompt we happened to print rather than
the symbol as a whole.

Fix this by removing the indentation for symbol-wide information.

Before:

  Symbol: CPU_FREQ [=n]
  Type  : bool
  Defined at drivers/cpufreq/Kconfig:4
    Prompt: CPU Frequency scaling
    Location:
      -> CPU Power Management
        -> CPU Frequency scaling
    Selects: SRCU [=n]
    Selected by [n]:
    - ARCH_SA1100 [=n] && <choice>

After:

  Symbol: CPU_FREQ [=n]
  Type  : bool
  Defined at drivers/cpufreq/Kconfig:4
    Prompt: CPU Frequency scaling
    Location:
      -> CPU Power Management
        -> CPU Frequency scaling
  Selects: SRCU [=n]
  Selected by [n]:
    - ARCH_SA1100 [=n] && <choice>

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: distinguish between dependencies and visibility in help text
Thomas Hebb [Tue, 17 Dec 2019 16:15:44 +0000 (08:15 -0800)]
kconfig: distinguish between dependencies and visibility in help text

Kconfig makes a distinction between dependencies (defined by "depends
on" expressions and enclosing "if" blocks) and visibility (which
includes all dependencies, but also includes inline "if" expressions of
individual properties as well as, for prompts, "visible if" expressions
of enclosing menus).

Before commit bcdedcc1afd6 ("menuconfig: print more info for symbol
without prompts"), the "Depends on" lines of a symbol's help text
indicated the visibility of the prompt property they appeared under.
After bcdedcc1afd, there was always only a single "Depends on" line,
which indicated the visibility of the first P_SYMBOL property of the
symbol. Since P_SYMBOLs never have inline if expressions, this was in
effect the same as the dependencies of the menu item that the P_SYMBOL
was attached to.

Neither of these situations accurately conveyed the dependencies of a
symbol--the first because it was actually the visibility, and the second
because it only showed the dependencies from a single definition.

With this series, we are back to printing separate dependencies for each
definition, but we print the actual dependencies (rather than the
visibility) in the "Depends on" line. However, it can still be useful to
know the visibility of a prompt, so this patch adds a "Visible if" line
that shows the visibility only if the visibility is different from the
dependencies (which it isn't for most prompts in Linux).

Before:

  Symbol: THUMB2_KERNEL [=n]
  Type  : bool
  Defined at arch/arm/Kconfig:1417
    Prompt: Compile the kernel in Thumb-2 mode
    Depends on: (CPU_V7 [=y] || CPU_V7M [=n]) && !CPU_V6 [=n] && !CPU_V6K [=n]
    Location:
      -> Kernel Features
    Selects: ARM_UNWIND [=n]

After:

   Symbol: THUMB2_KERNEL [=n]
   Type  : bool
   Defined at arch/arm/Kconfig:1417
     Prompt: Compile the kernel in Thumb-2 mode
     Depends on: (CPU_V7 [=y] || CPU_V7M [=n]) && !CPU_V6 [=n] && !CPU_V6K [=n]
     Visible if: (CPU_V7 [=y] || CPU_V7M [=n]) && !CPU_V6 [=n] && !CPU_V6K [=n] && !CPU_THUMBONLY [=n]
     Location:
       -> Kernel Features
     Selects: ARM_UNWIND [=n]

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: list all definitions of a symbol in help text
Thomas Hebb [Tue, 17 Dec 2019 16:15:43 +0000 (08:15 -0800)]
kconfig: list all definitions of a symbol in help text

In Kconfig, each symbol (representing a config option) can be defined in
multiple places. Each definition may or may not have a prompt, which
allows the option to be set via an interface like menuconfig. Each
definition has a set of dependencies, which determine whether its prompt
is visible and whether other pieces of the definition, like a default
value, take effect.

Historically, a symbol's help text (i.e. what's shown when a user
presses '?' in menuconfig) contained some symbol-wide information not
tied to any particular definition (e.g. what other symbols it selects)
as well as the location (file name and line number) and dependencies of
each prompt. Notably, the help text did not show the location or
dependencies of definitions without prompts.

Because this made it hard to reason about symbols that had no prompts,
commit bcdedcc1afd6 ("menuconfig: print more info for symbol without
prompts") changed the help text so that, instead of containing the
location and dependencies of each prompt, it contained the location and
dependencies of the symbol's first definition, regardless of whether or
not that definition had a prompt.

For symbols with only one definition, that change makes sense. However,
it breaks down for symbols with multiple definitions: each definition
has its own set of dependencies (the `dep` field of `struct menu`), and
those dependencies are ORed together to get the symbol's dependency list
(the `dir_dep` field of `struct symbol`). By printing only the
dependencies of the first definition, the help text misleads users into
believing that an option is more narrowly-applicable than it actually
is.

For an extreme example of this, we can look at the SYS_TEXT_BASE symbol
in the Das U-Boot project (version 2019.10), which also uses Kconfig. (I
unfortunately could not find an illustrative example in Linux.) This
config option specifies the load address of the built binary and, as
such, is applicable to basically every configuration possible. And yet,
without this patch, its help text is as follows:

  Symbol: SYS_TEXT_BASE [=]
  Type  : hex
  Prompt: U-Boot base address
    Location:
      -> ARM architecture
  Prompt: Text Base
    Location:
      -> Boot images
    Defined at arch/arm/mach-aspeed/Kconfig:9
    Depends on: ARM [=n] && ARCH_ASPEED [=n]

The help text indicates that the option is applicable only for a
specific unselected architecture (aspeed), because that architecture's
promptless definition (which just sets a default value), happens to be
the first one seen. No definition or dependency information is printed
for either of the two prompts listed.

Because source locations and dependencies are fundamentally properties
of definitions and not of symbols, we should treat them as such. This
patch brings back the pre-bcdedcc1afd6 behavior for definitions with
prompts but also separately prints the location and dependencies of
those without prompts, solving the original problem in a different way.
With this change, our SYS_TEXT_BASE example becomes

   Symbol: SYS_TEXT_BASE [=]
   Type  : hex
   Defined at arch/arm/mach-stm32mp/Kconfig:83
     Prompt: U-Boot base address
     Depends on: ARM [=n] && ARCH_STM32MP [=n]
     Location:
       -> ARM architecture
   Defined at Kconfig:532
     Prompt: Text Base
     Depends on: !NIOS2 [=n] && !XTENSA [=n] && !EFI_APP [=n]
     Location:
       -> Boot images
   Defined at arch/arm/mach-aspeed/Kconfig:9
     Depends on: ARM [=n] && ARCH_ASPEED [=n]
   Defined  at arch/arm/mach-socfpga/Kconfig:25
     Depends on: ARM [=n] && ARCH_SOCFPGA [=n]
   <snip>
   Defined at board/sifive/fu540/Kconfig:15
     Depends on: RISCV [=n] && TARGET_SIFIVE_FU540 [=n]

which is a much more accurate representation.

Note that there is one notable difference between what gets printed for
prompts after this change and what got printed before bcdedcc1afd6: the
"Depends on" line now accurately represents the prompt's dependencies
instead of conflating those with the prompt's visibility (which can
include extra conditions). See the patch later in this series titled
"kconfig: distinguish between dependencies and visibility in help text"
for more details and better handling of that nuance.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: Add yes2modconfig and mod2yesconfig targets.
Tetsuo Handa [Tue, 17 Dec 2019 09:42:06 +0000 (18:42 +0900)]
kconfig: Add yes2modconfig and mod2yesconfig targets.

Since kernel configs provided by syzbot are close to "make allyesconfig",
it takes long time to rebuild. This is especially waste of time when we
need to rebuild for many times (e.g. doing manual printk() inspection,
bisect operations).

We can save time if we can exclude modules which are irrelevant to each
problem. But "make localmodconfig" cannot exclude modules which are built
into vmlinux because /sbin/lsmod output is used as the source of modules.

Therefore, this patch adds "make yes2modconfig" which converts from =y
to =m if possible. After confirming that the interested problem is still
reproducible, we can try "make localmodconfig" (and/or manually tune
based on "Modules linked in:" line) in order to exclude modules which are
irrelevant to the interested problem. While we are at it, this patch also
adds "make mod2yesconfig" which converts from =m to =y in case someone
wants to convert from =m to =y after "make localmodconfig".

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: squash prop_alloc() into menu_add_prop()
Masahiro Yamada [Tue, 17 Dec 2019 04:14:23 +0000 (13:14 +0900)]
kconfig: squash prop_alloc() into menu_add_prop()

prop_alloc() is only called from menu_add_prop(). Squash it.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: remove sym from struct property
Masahiro Yamada [Tue, 17 Dec 2019 04:14:22 +0000 (13:14 +0900)]
kconfig: remove sym from struct property

struct property can reference to the symbol that it is associated with
by prop->menu->sym.

Fix up the one usage of prop->sym, and remove sym from struct property.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: remove 'prompt' argument from menu_add_prop()
Masahiro Yamada [Tue, 17 Dec 2019 04:14:21 +0000 (13:14 +0900)]
kconfig: remove 'prompt' argument from menu_add_prop()

This function no longer uses the 'prompt' argument.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: move prompt handling to menu_add_prompt() from menu_add_prop()
Masahiro Yamada [Tue, 17 Dec 2019 04:14:20 +0000 (13:14 +0900)]
kconfig: move prompt handling to menu_add_prompt() from menu_add_prop()

menu_add_prompt() is the only function that calls menu_add_prop() with
non-NULL prompt.

So, the code inside the if-conditional block of menu_add_prop() can be
moved to menu_add_prompt().

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: remove 'prompt' symbol
Masahiro Yamada [Tue, 17 Dec 2019 04:14:19 +0000 (13:14 +0900)]
kconfig: remove 'prompt' symbol

Now that 'prompt' is only reduced from T_WORD_QUOTE without any action,
use T_WORD_QUOTE directly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: drop T_WORD from the RHS of 'prompt' symbol
Masahiro Yamada [Tue, 17 Dec 2019 04:14:18 +0000 (13:14 +0900)]
kconfig: drop T_WORD from the RHS of 'prompt' symbol

Commit 8636a1f9677d ("treewide: surround Kconfig file paths with double
quotes") killed use-cases to reduce an unquoted string into the 'prompt'
symbol.

Kconfig still allows to use an unquoted string in the context of menu,
source, or prompt.

So, you can omit quoting if the prompt is a single word:

    bool foo

..., but I do not think this is so useful.

Let's require quoting:

    bool "foo"

All the Kconfig files in the kernel are written in this way.

Remove the T_WORD from the right-hand side of the symbol 'prompt'.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: use parent->dep as the parentdep of 'menu'
Masahiro Yamada [Tue, 17 Dec 2019 04:14:17 +0000 (13:14 +0900)]
kconfig: use parent->dep as the parentdep of 'menu'

In menu_finalize(), the dependency of a menu entry is propagated
downwards.

For the 'menu', parent->dep and parent->prompt->visible.expr have
the same expression. Both accumulate the 'depends on' of itself and
upper menu entries.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokconfig: remove the rootmenu check in menu_add_prop()
Masahiro Yamada [Tue, 17 Dec 2019 04:14:16 +0000 (13:14 +0900)]
kconfig: remove the rootmenu check in menu_add_prop()

This reverts commit ba6ff60d5eb4 ("kconfig: don't emit warning upon
rootmenu's prompt redefinition").

At that time, rootmenu.prompt was always set first, then it was set
again if a "mainmenu" statement was specified in the Kconfig file.

This is no longer the case since commit 0724a7c32a54 ("kconfig: Don't
leak main menus during parsing"). Remove the unneeded check.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agokbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf
Masahiro Yamada [Thu, 19 Dec 2019 08:33:29 +0000 (17:33 +0900)]
kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf

Commit bc081dd6e9f6 ("kbuild: generate modules.builtin") added
infrastructure to generate modules.builtin, the list of all
builtin modules.

Basically, it works like this:

  - Kconfig generates include/config/tristate.conf, the list of
    tristate CONFIG options with a value in a capital letter.

  - scripts/Makefile.modbuiltin makes Kbuild descend into
    directories to collect the information of builtin modules.

I am not a big fan of it because Kbuild ends up with traversing
the source tree twice.

I am not sure how perfectly it should work, but this approach cannot
avoid false positives; even if the relevant CONFIG option is tristate,
some Makefiles forces obj-m to obj-y.

Some examples are:

  arch/powerpc/platforms/powermac/Makefile:
    obj-$(CONFIG_NVRAM:m=y)         += nvram.o

  net/ipv6/Makefile:
    obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o

  net/netlabel/Makefile:
    obj-$(subst m,y,$(CONFIG_IPV6)) += netlabel_calipso.o

Nobody has complained about (or noticed) it, so it is probably fine to
have false positives in modules.builtin.

This commit simplifies the implementation. Let's exploit the fact
that every module has MODULE_LICENSE(). (modpost shows a warning if
MODULE_LICENSE is missing. If so, 0-day bot would already have blocked
such a module.)

I added MODULE_FILE to <linux/module.h>. When the code is being compiled
as builtin, it will be filled with the file path of the module, and
collected into modules.builtin.info. Then, scripts/link-vmlinux.sh
extracts the list of builtin modules out of it.

This new approach fixes the false-positives above, but adds another
type of false-positives; non-modular code may have MODULE_LICENSE()
by mistake. This is not a big deal, it is just the code is always
orphan. We can clean it up if we like. You can see cleanup examples by:

  $ git log --grep='make.* explicitly non-modular'

To sum up, this commits deletes lots of code, but still produces almost
equivalent results. Please note it does not increase the vmlinux size at
all. As you can see in include/asm-generic/vmlinux.lds.h, the .modinfo
section is discarded in the link stage.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: update reduced neighbor report TBTT info length
Avraham Stern [Sun, 29 Nov 2020 15:30:52 +0000 (17:30 +0200)]
ieee80211: update reduced neighbor report TBTT info length

A new field (20MHz PSD - 1 byte) was added to the RNR TBTT info field.
Adjust the expected TBTT info length accordingly.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.b503adccce6a.Ie684e1d3039c111bf2d521bf762aaec3f7a24d2e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocfg80211: Parse SAE H2E only membership selector
Ilan Peer [Sun, 29 Nov 2020 15:30:46 +0000 (17:30 +0200)]
cfg80211: Parse SAE H2E only membership selector

This extends the support for drivers that rebuild IEs in the
FW (same as with HT/VHT/HE).

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201129172929.4012647275f3.I1a93ae71c57ef0b6f58f99d47fce919d19d65ff0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: Add definition for WFA DPP
Kurt Lee [Mon, 12 Oct 2020 08:43:46 +0000 (03:43 -0500)]
ieee80211: Add definition for WFA DPP

Add Wi-Fi Alliance definition for DPP (Device Provisioning Protocol).

Signed-off-by: Kurt Lee <kurt.lee@cypress.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Link: https://lore.kernel.org/r/20201012084347.121557-2-wright.feng@cypress.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agonl80211: extend support to config spatial reuse parameter set
Rajkumar Manoharan [Mon, 28 Sep 2020 07:28:11 +0000 (00:28 -0700)]
nl80211: extend support to config spatial reuse parameter set

Allow the user to configure below Spatial Reuse Parameter Set element.
  * Non-SRG OBSS PD Max Offset
  * SRG BSS Color Bitmap
  * SRG Partial BSSID Bitmap

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Link: https://lore.kernel.org/r/1601278091-20313-2-git-send-email-rmanohar@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agomac80211: support S1G association
Thomas Pedersen [Tue, 22 Sep 2020 02:28:15 +0000 (19:28 -0700)]
mac80211: support S1G association

The changes required for associating in S1G are:

- apply S1G BSS channel info before assoc
- mark all S1G STAs as QoS STAs
- include and parse AID request element
- handle new Association Response format
- don't fail assoc if supported rates element is missing

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200922022818.15855-15-thomas@adapt-ip.com
[pass skb to ieee80211_add_aid_request_ie(), remove unused variable 'bss']
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agomac80211: encode listen interval for S1G
Thomas Pedersen [Tue, 22 Sep 2020 02:28:10 +0000 (19:28 -0700)]
mac80211: encode listen interval for S1G

S1G allows listen interval up to 2^14 * 10000 beacon
intervals. In order to do this listen interval needs a
scaling factor applied to the lower 14 bits. Calculate
this and properly encode the listen interval for S1G STAs.

See IEEE802.11ah-2016 Table 9-44a for reference.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200922022818.15855-10-thomas@adapt-ip.com
[move listen_int_usf into function using it]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocfg80211: convert S1G beacon to scan results
Thomas Pedersen [Tue, 22 Sep 2020 02:28:06 +0000 (19:28 -0700)]
cfg80211: convert S1G beacon to scan results

The S1G beacon is an extension frame as opposed to
management frame for the regular beacon. This means we may
have to occasionally cast the frame buffer to a different
header type. Luckily this isn't too bad as scan results
mostly only care about the IEs.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200922022818.15855-6-thomas@adapt-ip.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agonl80211: support S1G capability overrides in assoc
Thomas Pedersen [Tue, 22 Sep 2020 02:28:04 +0000 (19:28 -0700)]
nl80211: support S1G capability overrides in assoc

NL80211_ATTR_S1G_CAPABILITY can be passed along with
NL80211_ATTR_S1G_CAPABILITY_MASK to NL80211_CMD_ASSOCIATE
to indicate S1G capabilities which should override the
hardware capabilities in eg. the association request.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200922022818.15855-4-thomas@adapt-ip.com
[johannes: always require both attributes together, commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: redefine S1G bits with GENMASK
Thomas Pedersen [Tue, 8 Sep 2020 19:03:02 +0000 (12:03 -0700)]
ieee80211: redefine S1G bits with GENMASK

The S1G capability fields were defined by ORing BITS()
together, and expecting a custom macro to use the _SHIFT
definitions. Use the Linux kernel GENMASK for the
definitions now, and FIELD_{GET,PREP} to access the fields
in the future.

Take the chance to rename eg. S1G_CAPAB_B0 to the more
compact S1G_CAP0.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200908190323.15814-2-thomas@adapt-ip.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agomac80211: Handle special status codes in SAE commit
Jouni Malinen [Fri, 31 Jul 2020 18:38:30 +0000 (21:38 +0300)]
mac80211: Handle special status codes in SAE commit

SAE authentication has been extended with H2E (IEEE 802.11 REVmd) and PK
(WFA) options. Those extensions use special status code values in the
SAE commit messages (Authentication frame with transaction sequence
number 1) to identify which extension is in use. mac80211 was
interpreting those new values as the AP denying authentication and that
resulted in failure to complete SAE authentication in some cases.

Fix this by adding exceptions for the new status code values 126 and
127.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200731183830.18735-1-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: Add missing and new AKM suite selector definitions
Veerendranath Jakkam [Wed, 17 Jun 2020 11:31:32 +0000 (17:01 +0530)]
ieee80211: Add missing and new AKM suite selector definitions

Add the definitions for missing AKM selectors defined in
IEEE P802.11-REVmd/D3.0, table 9-151. These definitions will
be used by various drivers that support these new AKM suites.

Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>
Link: https://lore.kernel.org/r/20200617113132.13477-1-vjakkam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agomac80211: check the correct bit for EMA AP
Shaul Triebitz [Thu, 28 May 2020 19:34:37 +0000 (21:34 +0200)]
mac80211: check the correct bit for EMA AP

An AP supporting EMA (Enhanced Multi-BSSID advertisement) should set
bit 83 in the extended capabilities IE (9.4.2.26 in the 802.11ax D5 spec).
So the *3rd* bit of the 10th byte should be checked.
Also, in one place, the wrong byte was checked.
(cfg80211_find_ie returns a pointer to the beginning of the IE,
 so the data really starts at ie[2], so the 10th byte
 should be ie[12]. To avoid this confusion, use cfg80211_find_elem
 instead).

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Link: https://lore.kernel.org/r/20200528213443.4316121fa2a3.I9745582f8d41ad8e689dac0fefcd70b276d7c1ea@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: add HE ext EIDs and 6 GHz capability defines
Johannes Berg [Thu, 28 May 2020 19:34:28 +0000 (21:34 +0200)]
ieee80211: add HE ext EIDs and 6 GHz capability defines

Add the HE extended element IDs and the definitions for the
HE 6 GHz band capabilities element, from Draft 5.0.

Link: https://lore.kernel.org/r/20200528213443.1a6689fe093f.Ifdc5400fb01779351354daf38663ebeea03c9ad9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: add code to obtain and parse 6 GHz operation field
Johannes Berg [Thu, 28 May 2020 19:34:27 +0000 (21:34 +0200)]
ieee80211: add code to obtain and parse 6 GHz operation field

Add some code to obtain and parse the 6 GHz operation field
inside the HE operation element.

While at it, fix the required length using sizeof() the new
struct, which is 5 instead of 4 now.

Link: https://lore.kernel.org/r/20200528213443.42ca72c45ca9.Id74bc1b03da9ea6574f9bc70deeb60dfc1634359@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: definitions for reduced neighbor reports
Tova Mussai [Thu, 28 May 2020 19:34:26 +0000 (21:34 +0200)]
ieee80211: definitions for reduced neighbor reports

Add the necessary definitions to parse reduced neighbor
report elements.

Signed-off-by: Tova Mussai <tova.mussai@intel.com>
[change struct name, remove IEEE80211_MIN_AP_NEIGHBOR_INFO_SIZE]
Link: https://lore.kernel.org/r/20200528213443.4f9154461c06.I518d9898ad982f838112ea9ca14a20d6bbb16394@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocfg80211: Replace zero-length array with flexible-array
Gustavo A. R. Silva [Thu, 7 May 2020 18:39:09 +0000 (13:39 -0500)]
cfg80211: Replace zero-length array with flexible-array

The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200507183909.GA12993@embeddedor
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agomac80211: Add new AMPDU factor macro for HE peer caps
Tamizh Chelvam [Mon, 4 May 2020 17:04:59 +0000 (22:34 +0530)]
mac80211: Add new AMPDU factor macro for HE peer caps

Add IEEE80211_HE_VHT_MAX_AMPDU_FACTOR and IEEE80211_HE_HT_MAX_AMPDU_FACTOR
as per spec to use for peer max ampdu factor.

Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
Link: https://lore.kernel.org/r/1588611900-21185-1-git-send-email-tamizhr@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: S1G defines
Thomas Pedersen [Thu, 30 Apr 2020 17:25:53 +0000 (10:25 -0700)]
ieee80211: S1G defines

These are found in IEEE-802.11ah-2016.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200430172554.18383-5-thomas@adapt-ip.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocfg80211: add KHz variants of frame RX API
Thomas Pedersen [Thu, 30 Apr 2020 17:25:50 +0000 (10:25 -0700)]
cfg80211: add KHz variants of frame RX API

Drivers may wish to report the RX frequency in units of
KHz. Provide cfg80211_rx_mgmt_khz() and wrap it with
cfg80211_rx_mgmt() so exisiting drivers which can't report
KHz anyway don't need to change. Add a similar wrapper for
cfg80211_report_obss_beacon() so the frequency units stay
somewhat consistent.

This doesn't actually change the nl80211 API yet.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200430172554.18383-2-thomas@adapt-ip.com
[fix mac80211 calling the non-khz version of obss beacon report,
 drop trace point name changes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: Fix incorrect mask for default PE duration
Pradeep Kumar Chitrapu [Wed, 6 May 2020 10:24:30 +0000 (03:24 -0700)]
ieee80211: Fix incorrect mask for default PE duration

Fixes bitmask for HE opration's default PE duration.

Fixes: daa5b83513a7 ("mac80211: update HE operation fields to D3.0")
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Link: https://lore.kernel.org/r/20200506102430.5153-1-pradeepc@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: share 802.11 unit conversion helpers
Thomas Pedersen [Thu, 2 Apr 2020 01:18:02 +0000 (18:18 -0700)]
ieee80211: share 802.11 unit conversion helpers

MHZ_TO_KHZ, and KHZ_TO_MHZ are useful to drivers and
elsewhere so export these in the common ieee80211 header.
Move the power helpers also because we might as well.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200402011810.22947-2-thomas@adapt-ip.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agocfg80211: Parse HE membership selector
Ilan Peer [Thu, 26 Mar 2020 13:09:35 +0000 (15:09 +0200)]
cfg80211: Parse HE membership selector

This extends the support for drivers that rebuilds IEs in the
FW (same as with HT/VHT).

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.20feaabfb484.I886252639604c8e3e84b8ef97962f1b0e4beec81@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agomac80211: implement Operating Mode Notification extended NSS support
Johannes Berg [Thu, 26 Mar 2020 13:09:32 +0000 (15:09 +0200)]
mac80211: implement Operating Mode Notification extended NSS support

Somehow we missed this for a long time, but similar to the extended
NSS support in VHT capabilities, we need to have this in Operating
Mode notification.

Implement it by
 * parsing the 160/80+80 bit there and setting the bandwidth
   appropriately
 * having callers of ieee80211_get_vht_max_nss() pass in the current
   max NSS value as received in the operating mode notification in
   order to modify it appropriately depending on the extended NSS
   bits.

This updates all drivers that use it, i.e. only iwlwifi/mvm.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.098483728cfa.I4e8c25d3288441759c2793247197229f0696a37d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: fix HE SPR size calculation
Johannes Berg [Wed, 25 Mar 2020 08:09:19 +0000 (09:09 +0100)]
ieee80211: fix HE SPR size calculation

The he_sr_control field is just a u8, so le32_to_cpu()
shouldn't be applied to it; this was evidently copied
from ieee80211_he_oper_size(). Fix it, and also adjust
the type of the local variable.

Fixes: ef11a931bd1c ("mac80211: HE: add Spatial Reuse element parsing support")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200325090918.dfe483b49e06.Ia53622f23b2610a2ae6ea39a199866196fe946c1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: add WPA3 OWE AKM suite selector
Sergey Matyukevich [Thu, 13 Feb 2020 13:16:17 +0000 (13:16 +0000)]
ieee80211: add WPA3 OWE AKM suite selector

Add the definition for Opportunistic Wireless Encryption AKM selector.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20200213131608.10541-3-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agomac80211: parse also the RSNXE IE
Shaul Triebitz [Fri, 31 Jan 2020 11:12:57 +0000 (13:12 +0200)]
mac80211: parse also the RSNXE IE

Parse also the RSN Extension IE when parsing the rest of the IEs.
It will be used in a later patch.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-21-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
3 years agoieee80211: fix 'the' doubling in comments
Zvika Yehudai [Mon, 3 Feb 2020 08:08:23 +0000 (10:08 +0200)]
ieee80211: fix 'the' doubling in comments

Remove redundant 'the' where 'the the' was written.

Signed-off-by: Zvika Yehudai <zvikayeh@gmail.com>
Link: https://lore.kernel.org/r/20200203080823.24949-1-zvikayeh@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>