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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-12 20:25:04 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-12 20:25:04 +0200
commita137802ee839ace40079bebde24cfb416f73208a (patch)
treedb6e93c3d1c9f5808a2d78fcf91fe96260eb786b /drivers/scsi/osst.h
parentMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
downloadlinux-a137802ee839ace40079bebde24cfb416f73208a.tar.xz
linux-a137802ee839ace40079bebde24cfb416f73208a.zip
Don't use '-fwrapv' compiler option: it's buggy in gcc-4.1.x
This causes kernel images that don't run init to completion with certain broken gcc versions. This fixes kernel bugzilla entry: http://bugzilla.kernel.org/show_bug.cgi?id=13012 I suspect the gcc problem is this: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28230 Fix the problem by using the -fno-strict-overflow flag instead, which not only does not exist in the known-to-be-broken versions of gcc (it was introduced later than fwrapv), but seems to be much less disturbing to gcc too: the difference in the generated code by -fno-strict-overflow are smaller (compared to using neither flag) than when using -fwrapv. Reported-by: Barry K. Nathan <barryn@pobox.com> Pushed-by: Frans Pop <elendil@planet.nl> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/scsi/osst.h')
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