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| author | Felix Fietkau <nbd@openwrt.org> | 2016-02-29 17:19:04 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2016-02-29 17:19:04 +0000 |
| commit | f3a1db04f0ebba577598f1577d3c8c756c8bf757 (patch) | |
| tree | eecfe6c9154a9e0717573daba16d1c58bd674d2e /package/kernel/mac80211/patches/317-brcmfmac-Fix-race-condition-in-msgbuf-ioctl-processi.patch | |
| parent | 5db86ba649298bef0066cac8e4d0e17834f6b7b0 (diff) | |
| download | upstream-f3a1db04f0ebba577598f1577d3c8c756c8bf757.tar.gz upstream-f3a1db04f0ebba577598f1577d3c8c756c8bf757.tar.bz2 upstream-f3a1db04f0ebba577598f1577d3c8c756c8bf757.zip | |
mac80211: backport from trunk r48782 + required kernel patches and mt76, mwlwifi
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@48822 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/kernel/mac80211/patches/317-brcmfmac-Fix-race-condition-in-msgbuf-ioctl-processi.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/317-brcmfmac-Fix-race-condition-in-msgbuf-ioctl-processi.patch | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/package/kernel/mac80211/patches/317-brcmfmac-Fix-race-condition-in-msgbuf-ioctl-processi.patch b/package/kernel/mac80211/patches/317-brcmfmac-Fix-race-condition-in-msgbuf-ioctl-processi.patch deleted file mode 100644 index e005fe73d2..0000000000 --- a/package/kernel/mac80211/patches/317-brcmfmac-Fix-race-condition-in-msgbuf-ioctl-processi.patch +++ /dev/null @@ -1,35 +0,0 @@ -From: Hante Meuleman <meuleman@broadcom.com> -Date: Fri, 6 Mar 2015 18:40:41 +0100 -Subject: [PATCH] brcmfmac: Fix race condition in msgbuf ioctl processing. - -Msgbuf is using a wait_event_timeout to wait for the response on -an ioctl. The wakeup routine uses waitqueue_active to see if -wait_event_timeout has been called. There is a chance that the -response arrives before wait_event_timeout is called, this -will result in situation that wait_event_timeout never gets -woken again and assumed result will be a timeout. This patch -removes that errornous situation by always setting the -ctl_completed var before checking for queue active. - -Reviewed-by: Arend Van Spriel <arend@broadcom.com> -Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> -Signed-off-by: Hante Meuleman <meuleman@broadcom.com> -Signed-off-by: Arend van Spriel <arend@broadcom.com> -Signed-off-by: Kalle Valo <kvalo@codeaurora.org> ---- - ---- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c -+++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c -@@ -481,10 +481,9 @@ static int brcmf_msgbuf_ioctl_resp_wait( - - static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf) - { -- if (waitqueue_active(&msgbuf->ioctl_resp_wait)) { -- msgbuf->ctl_completed = true; -+ msgbuf->ctl_completed = true; -+ if (waitqueue_active(&msgbuf->ioctl_resp_wait)) - wake_up(&msgbuf->ioctl_resp_wait); -- } - } - - |