On Tue, Jan 12, 2021 at 5:39 PM Nick Desaulniers
wrote:
>
> On Tue, Jan 12, 2021 at 5:31 PM Nathan Chancellor
> wrote:
> >
> > On Wed, Jan 13, 2021 at 08:39:52AM +0800, kernel test robot wrote:
> > > Hi Nathan,
> > >
> > > I love your patch! Perhaps something to improve:
> > >
> > > [auto build
On Tue, Jan 12, 2021 at 5:31 PM Nathan Chancellor
wrote:
>
> On Wed, Jan 13, 2021 at 08:39:52AM +0800, kernel test robot wrote:
> > Hi Nathan,
> >
> > I love your patch! Perhaps something to improve:
> >
> > [auto build test WARNING on 7c53f6b671f4aba70ff15e1b05148b10d58c2837]
> >
> > url:
>
On Wed, Jan 13, 2021 at 08:39:52AM +0800, kernel test robot wrote:
> Hi Nathan,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on 7c53f6b671f4aba70ff15e1b05148b10d58c2837]
>
> url:
>
On Tue, Jan 12, 2021 at 03:06:34PM -0700, Nathan Chancellor wrote:
> On Tue, Jan 12, 2021 at 01:53:30PM -0800, Nick Desaulniers wrote:
> > On Tue, Jan 12, 2021 at 1:37 PM Nathan Chancellor
> > wrote:
> > >
> > > > if real_ptr is an unsigned long, do we want to use `__ffs(real_ptr) +
> > > > 1`
Hi Nathan,
I love your patch! Perhaps something to improve:
[auto build test WARNING on 7c53f6b671f4aba70ff15e1b05148b10d58c2837]
url:
https://github.com/0day-ci/linux/commits/Nathan-Chancellor/ubsan-Implement-__ubsan_handle_alignment_assumption/20210113-055714
base:
Hi Nathan,
I love your patch! Perhaps something to improve:
[auto build test WARNING on 7c53f6b671f4aba70ff15e1b05148b10d58c2837]
url:
https://github.com/0day-ci/linux/commits/Nathan-Chancellor/ubsan-Implement-__ubsan_handle_alignment_assumption/20210113-055714
base:
On Tue, Jan 12, 2021 at 01:53:30PM -0800, Nick Desaulniers wrote:
> On Tue, Jan 12, 2021 at 1:37 PM Nathan Chancellor
> wrote:
> >
> > > if real_ptr is an unsigned long, do we want to use `__ffs(real_ptr) +
> > > 1` here rather than ffs which takes an int? It seems the kernel is
> > > missing a
On Tue, Jan 12, 2021 at 1:37 PM Nathan Chancellor
wrote:
>
> > if real_ptr is an unsigned long, do we want to use `__ffs(real_ptr) +
> > 1` here rather than ffs which takes an int? It seems the kernel is
> > missing a definition of ffsl. :(
>
> Why the + 1? I think if we use __ffs (which it
When building ARCH=mips 32r2el_defconfig with CONFIG_UBSAN_ALIGNMENT:
ld.lld: error: undefined symbol: __ubsan_handle_alignment_assumption
>>> referenced by slab.h:557 (include/linux/slab.h:557)
>>> main.o:(do_initcalls) in archive init/built-in.a
>>> referenced by slab.h:448
On Tue, Jan 12, 2021 at 12:55 PM Nathan Chancellor
wrote:
>
> When building ARCH=mips 32r2el_defconfig with CONFIG_UBSAN_ALIGNMENT:
>
> ld.lld: error: undefined symbol: __ubsan_handle_alignment_assumption
> >>> referenced by slab.h:557 (include/linux/slab.h:557)
> >>>
On Tue, Jan 12, 2021 at 01:15:42PM -0800, Nick Desaulniers wrote:
> On Tue, Jan 12, 2021 at 12:55 PM Nathan Chancellor
> wrote:
> >
> > When building ARCH=mips 32r2el_defconfig with CONFIG_UBSAN_ALIGNMENT:
> >
> > ld.lld: error: undefined symbol: __ubsan_handle_alignment_assumption
> > >>>
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