From: IanR778 Date: Wed, 8 Oct 2014 22:56:44 +0000 (+0100) Subject: Fix: bug in extend_tsf near 0x8000000 values X-Git-Tag: 1.4.0~1^2 X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=refs%2Fpull%2F67%2Fhead;p=open-ath9k-htc-firmware.git Fix: bug in extend_tsf near 0x8000000 values Bugfix + added more test cases. --- diff --git a/target_firmware/wlan/if_ath.c b/target_firmware/wlan/if_ath.c index 78a02e1..2d6a7f7 100755 --- a/target_firmware/wlan/if_ath.c +++ b/target_firmware/wlan/if_ath.c @@ -93,6 +93,8 @@ void ath_tgt_tx_sched_nonaggr(struct ath_softc_tgt *sc,struct ath_buf * bf_host) * extend(0x0000001200000004, 0x00000006) == 0x0000001200000006 * extend(0x0000001200000004, 0x00000002) == 0x0000001200000002 * extend(0x0000001200000004, 0xfffffffe) == 0x00000011fffffffe ! tsfhigh-- + * extend(0x000000127ffffffe, 0x80000002) == 0x0000001280000002 + * extend(0x0000001280000002, 0x7ffffffe) == 0x000000127ffffffe * extend(0x00000012fffffffc, 0xfffffffe) == 0x00000012fffffffe * extend(0x00000012fffffffc, 0xfffffffa) == 0x00000012fffffffa * extend(0x00000012fffffffc, 0x00000002) == 0x0000001300000002 ! tsfhigh++ @@ -101,13 +103,13 @@ static u_int64_t ath_extend_tsf(struct ath_softc_tgt *sc, u_int32_t rstamp) { struct ath_hal *ah = sc->sc_ah; u_int64_t tsf; - a_int32_t tsf_low; + u_int32_t tsf_low; a_int64_t tsf_delta; /* signed int64 */ tsf = ah->ah_getTsf64(ah); - tsf_low = tsf & 0xffffffff; + tsf_low = tsf & 0xffffffffUL; - tsf_delta = (a_int32_t)rstamp - (a_int64_t)tsf_low; + tsf_delta = (a_int32_t)((rstamp - tsf_low) & 0xffffffffUL); return (tsf + (u_int64_t)tsf_delta); }