[cc: Al -- saying I'm cc-ing you in the patch 0 description doesn't make it so.]
On Wed, Jul 8, 2015 at 12:24 PM, Andy Lutomirski <[email protected]> wrote: > 44fbbb3dc687c added an unnecessary check. Add a temporary assertion > to confirm that it's unnecessary. > > Signed-off-by: Andy Lutomirski <[email protected]> > --- > arch/x86/entry/entry_32.S | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S > index a36d5df6a749..d36afad80ad1 100644 > --- a/arch/x86/entry/entry_32.S > +++ b/arch/x86/entry/entry_32.S > @@ -491,10 +491,13 @@ work_notifysig: # > deal with pending signals and > #endif > TRACE_IRQS_ON > ENABLE_INTERRUPTS(CLBR_NONE) > + /* Temporary sanity check */ > movb PT_CS(%esp), %bl > andb $SEGMENT_RPL_MASK, %bl > cmpb $USER_RPL, %bl > - jb resume_kernel > + jnb 2f > + ud2 > +2: > xorl %edx, %edx > call do_notify_resume > jmp resume_userspace > -- > 2.4.3 > -- Andy Lutomirski AMA Capital Management, LLC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
