On 6/15/21 3:13 AM, Stephen Rothwell wrote:
> Hi all,
>
> After merging the block tree, today's linux-next build (arm
> multi_v7_defconfig) produced this warning:
Will get sorted, thanks for letting us know
> In file included from include/linux/kernel.h:15,
> from fs/io_uring.c:42:
> fs/io_uring.c: In function 'io_alloc_page_table':
> include/linux/minmax.h:20:28: warning: comparison of distinct pointer types lacks a cast
> 20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
> | ^~
> include/linux/minmax.h:26:4: note: in expansion of macro '__typecheck'
> 26 | (__typecheck(x, y) && __no_side_effects(x, y))
> | ^~~~~~~~~~~
> include/linux/minmax.h:36:24: note: in expansion of macro '__safe_cmp'
> 36 | __builtin_choose_expr(__safe_cmp(x, y), \
> | ^~~~~~~~~~
> include/linux/minmax.h:45:19: note: in expansion of macro '__careful_cmp'
> 45 | #define min(x, y) __careful_cmp(x, y, <)
> | ^~~~~~~~~~~~~
> fs/io_uring.c:7095:28: note: in expansion of macro 'min'
> 7095 | unsigned int this_size = min(size, PAGE_SIZE);
> | ^~~
>
> Introduced by commit
>
> 9123c8ffce16 ("io_uring: add helpers for 2 level table alloc")
>
--
Pavel Begunkov
