diff options
| author | Andy Lutomirski <[email protected]> | 2017-07-28 06:00:32 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-07-30 12:04:41 +0200 |
| commit | 99504819fc643160afd6813921b1d42b18e52a49 (patch) | |
| tree | 62a0b10abab5e773b6e28988b54301faca83b028 /arch/x86/mm/extable.c | |
| parent | 630c1863bc1c6c0ac33e5134bec7bdf7941c28c8 (diff) | |
x86/asm/32: Remove a bunch of '& 0xffff' from pt_regs segment reads
Now that pt_regs properly defines segment fields as 16-bit on 32-bit
CPUs, there's no need to mask off the high word.
Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'arch/x86/mm/extable.c')
| -rw-r--r-- | arch/x86/mm/extable.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c index 0ea8afcb929c..fb2ddcdf7c73 100644 --- a/arch/x86/mm/extable.c +++ b/arch/x86/mm/extable.c @@ -142,7 +142,7 @@ void __init early_fixup_exception(struct pt_regs *regs, int trapnr) * undefined. I'm not sure which CPUs do this, but at least * the 486 DX works this way. */ - if ((regs->cs & 0xFFFF) != __KERNEL_CS) + if (regs->cs != __KERNEL_CS) goto fail; /* |