On 06/04/2014 03:15 PM, tip-bot for Borislav Petkov wrote: > Commit-ID: baa916f39b50ad91661534652110df40396acda0 > Gitweb: http://git.kernel.org/tip/baa916f39b50ad91661534652110df40396acda0 > Author: Borislav Petkov <bp@xxxxxxx> > AuthorDate: Fri, 25 Apr 2014 13:40:10 +0200 > Committer: Matt Fleming <matt.fleming@xxxxxxxxx> > CommitDate: Sat, 3 May 2014 06:39:25 +0100 > > x86/efi: Check for unsafe dealing with FPU state in irq ctxt > > efi_call can happen in an irq context (pstore) and there we really need > to make sure we're not scribbling over FPU state while we've interrupted > a thread or kernel mode with a live FPU state. Therefore, use the > kernel_fpu_begin/end() variants which do that check. > > Signed-off-by: Borislav Petkov <bp@xxxxxxx> > Cc: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx> > Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx> > --- > arch/x86/include/asm/efi.h | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > I seem to have lost track of this... does this actually solve anything, or does it just mean we'll explode hard? -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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