From: Sathya Perla Date: Fri, 23 Nov 2012 00:27:18 +0000 (+0000) Subject: be2net: fix a possible events_get() race on BE2 X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~45^2~235 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b545a62915aa635a5d41f64cbf3b7650c132a8d;p=pandora-kernel.git be2net: fix a possible events_get() race on BE2 On BE2 chip, an interrupt being raised even when EQ is in un-armed state has been observed a few times. This is not expected and has never been observed on BE3/Lancer chips. As a consequence, be_msix()::events_get() and be_poll()::events_get() can race and notify an EQ wrongly causing a CEV UE. The other possible side-effect would be traffic stalling because after notifying EQ, napi_schedule() is ignored as NAPI is already running. This patch fixes this issue by counting events only in be_poll(). Signed-off-by: Sathya Perla Signed-off-by: David S. Miller --- Reading git-diff-tree failed