Re: [PATCH 4/7] x86: entry.S: use JZ mnemonic after TEST, not JE

[Denys Vlasenko]

On Thu, Feb 26, 2015 at 12:04 AM, Borislav Petkov <bp@xxxxxxxxx> wrote:
> On Wed, Feb 25, 2015 at 01:00:16AM +0100, Denys Vlasenko wrote:
>> After TEST insn, JE actually performs "jump if zero",
>> let's use JZ mnemonic instead.
>>
>> No code changes, but less confusion.
>>
>> Signed-off-by: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
>> CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
>> CC: Steven Rostedt <rostedt@xxxxxxxxxxx>
>> CC: Ingo Molnar <mingo@xxxxxxxxxx>
>> CC: Borislav Petkov <bp@xxxxxxxxx>
>> CC: "H. Peter Anvin" <hpa@xxxxxxxxx>
>> CC: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
>> CC: Oleg Nesterov <oleg@xxxxxxxxxx>
>> CC: Frederic Weisbecker <fweisbec@xxxxxxxxx>
>> CC: Alexei Starovoitov <ast@xxxxxxxxxxxx>
>> CC: Will Drewry <wad@xxxxxxxxxxxx>
>> CC: Kees Cook <keescook@xxxxxxxxxxxx>
>> CC: x86@xxxxxxxxxx
>> CC: linux-kernel@xxxxxxxxxxxxxxx
>> ---
>>  arch/x86/kernel/entry_64.S | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Acked-by: Borislav Petkov <bp@xxxxxxx>

Andy, please don't take this patch yet, there are about a dozen
more instances of TEST which need similar treatment.
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