On Fri, Apr 12, 2019 at 4:01 PM Andrey Ignatov <r...@fb.com> wrote:
>
> Fix a new warning reported by kbuild for make ARCH=i386:
>
> In file included from kernel/bpf/cgroup.c:11:0:
> kernel/bpf/cgroup.c: In function '__cgroup_bpf_run_filter_sysctl':
> include/linux/kernel.h:827:29: warning: comparison of distinct pointer
> types lacks a cast
> (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
> ^
> include/linux/kernel.h:841:4: note: in expansion of macro '__typecheck'
> (__typecheck(x, y) && __no_side_effects(x, y))
> ^~~~~~~~~~~
> include/linux/kernel.h:851:24: note: in expansion of macro '__safe_cmp'
> __builtin_choose_expr(__safe_cmp(x, y), \
> ^~~~~~~~~~
> include/linux/kernel.h:860:19: note: in expansion of macro '__careful_cmp'
> #define min(x, y) __careful_cmp(x, y, <)
> ^~~~~~~~~~~~~
> >> kernel/bpf/cgroup.c:837:17: note: in expansion of macro 'min'
> ctx.new_len = min(PAGE_SIZE, *pcount);
> ^~~
>
> Fixes: 4e63acdff864 ("bpf: Introduce bpf_sysctl_{get,set}_new_value helpers")
> Signed-off-by: Andrey Ignatov <r...@fb.com>
Applied. Thanks for the quick fix.
