Messages in this thread Patch in this message |  | | | Date | Tue, 22 Feb 2011 14:17:07 -0800 | | From | Greg KH <> | | Subject | [28/70] staging: brcm80211: bugfix for softmac crash on multi cpu configurations |
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2.6.37-stable review patch. If anyone has any objections, please let us know.
------------------ From: Roland Vossen <rvossen@broadcom.com>
commit 6a3be6e6e7feb4cb35275475d6a863b748d59cc3 upstream.
Solved a locking issue that resulted in driver crashes with the 43224 and 43225 chips. The problem has been reported on several fora. Root cause was two fold: hardware was being manipulated by two unsynchronized threads, and a scan operation could interfere with an ongoing dynamic calibration process. Fix was to invoke a lock on wl_ops_config() operation and to set internal flags when a scan operation is started and stopped.
Please add this to the staging-linus branch.
Signed-off-by: Roland Vossen <rvossen@broadcom.com> Acked-by: Brett Rudley <brudley@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/staging/brcm80211/sys/wlc_mac80211.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/staging/brcm80211/sys/wlc_mac80211.c +++ b/drivers/staging/brcm80211/sys/wlc_mac80211.c @@ -5336,7 +5336,6 @@ wlc_sendpkt_mac80211(wlc_info_t *wlc, vo fifo = prio2fifo[prio]; ASSERT((uint) PKTHEADROOM(sdu) >= TXOFF); - ASSERT(!PKTSHARED(sdu)); ASSERT(!PKTNEXT(sdu)); ASSERT(!PKTLINK(sdu)); ASSERT(fifo < NFIFO);
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