On Fri, Mar 22, 2019 at 8:17 AM Rasmus Villemoes
wrote:
>
> On 21/03/2019 18.02, Nick Desaulniers wrote:
> > On Wed, Mar 20, 2019 at 7:11 PM Andrew Morton
> > wrote:
> >>
> >
> > Further, I can drop some of the __GNUC__ < 4 code in
> > arch/x86/include/asm/string_32.h.
>
> Already on its way to
On 21/03/2019 18.02, Nick Desaulniers wrote:
> On Wed, Mar 20, 2019 at 7:11 PM Andrew Morton
> wrote:
>>
>
> Further, I can drop some of the __GNUC__ < 4 code in
> arch/x86/include/asm/string_32.h.
Already on its way to Linus:
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit
On Thu, 21 Mar 2019 10:02:37 -0700 Nick Desaulniers
wrote:
> Shall I send you a cleanup removing the undefs for bcmp, memcmp,
> strcat, strcpy, and strcmp? Of those, I only see memcmp being
> `#defined` in arch/m68k/include/asm/string.h, arch/x86/boot/string.h,
> and arch/x86/include/asm/string
On Thu, Mar 21, 2019 at 10:02 AM Nick Desaulniers
wrote:
>
> On Wed, Mar 20, 2019 at 7:11 PM Andrew Morton
> wrote:
> > I guess we should backport this into -stable so that older kernels can
> > be built with newer Clang.
>
> Ah, you're right. I always forget. Is it too late to add
>
> Cc: sta
On Wed, Mar 20, 2019 at 7:11 PM Andrew Morton wrote:
>
> On Wed, 13 Mar 2019 14:13:31 -0700 Nick Desaulniers
> wrote:
>
> > A recent optimization in Clang (r355672) lowers comparisons of the
> > return value of memcmp against zero to comparisons of the return value
> > of bcmp against zero. Thi
On Wed, 13 Mar 2019 14:13:31 -0700 Nick Desaulniers
wrote:
> A recent optimization in Clang (r355672) lowers comparisons of the
> return value of memcmp against zero to comparisons of the return value
> of bcmp against zero. This helps some platforms that implement bcmp
> more efficiently than
On 14/03/2019 10.57, David Laight wrote:
> From: Nick Desaulniers
>> Sent: 13 March 2019 21:14
> ...
>> diff --git a/include/linux/string.h b/include/linux/string.h
>> index 7927b875f80c..6ab0a6fa512e 100644
>> --- a/include/linux/string.h
>> +++ b/include/linux/string.h
>> @@ -150,6 +150,9 @@ exte
From: Nick Desaulniers
> Sent: 13 March 2019 21:14
...
> diff --git a/include/linux/string.h b/include/linux/string.h
> index 7927b875f80c..6ab0a6fa512e 100644
> --- a/include/linux/string.h
> +++ b/include/linux/string.h
> @@ -150,6 +150,9 @@ extern void * memscan(void *,int,__kernel_size_t);
> #
On Wed, Mar 13, 2019 at 02:13:31PM -0700, Nick Desaulniers wrote:
> A recent optimization in Clang (r355672) lowers comparisons of the
> return value of memcmp against zero to comparisons of the return value
> of bcmp against zero. This helps some platforms that implement bcmp
> more efficiently t
On Thu, Mar 14, 2019 at 6:13 AM Nick Desaulniers
wrote:
>
> A recent optimization in Clang (r355672) lowers comparisons of the
> return value of memcmp against zero to comparisons of the return value
> of bcmp against zero. This helps some platforms that implement bcmp
> more efficiently than mem
On Wed, Mar 13, 2019 at 02:13:31PM -0700, Nick Desaulniers wrote:
> A recent optimization in Clang (r355672) lowers comparisons of the
> return value of memcmp against zero to comparisons of the return value
> of bcmp against zero. This helps some platforms that implement bcmp
> more efficiently t
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