Hi all,
After merging the drm-misc tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:
In file included from include/linux/kernel.h:14,
from include/asm-generic/bug.h:20,
from arch/arm/include/asm/bug.h:60,
from include/linux/bug.h:5,
from include/linux/io.h:11,
from include/linux/dma-buf-map.h:9,
from include/linux/dma-buf.h:16,
from drivers/gpu/drm/drm_fb_helper.c:33:
drivers/gpu/drm/drm_fb_helper.c: In function 'fb_read_screen_base':
include/linux/minmax.h:18:28: warning: comparison of distinct pointer types lacks a cast
18 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
include/linux/minmax.h:32:4: note: in expansion of macro '__typecheck'
32 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
include/linux/minmax.h:42:24: note: in expansion of macro '__safe_cmp'
42 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
include/linux/minmax.h:51:19: note: in expansion of macro '__careful_cmp'
51 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
drivers/gpu/drm/drm_fb_helper.c:2041:22: note: in expansion of macro 'min'
2041 | size_t alloc_size = min(count, PAGE_SIZE);
| ^~~
drivers/gpu/drm/drm_fb_helper.c: In function 'fb_write_screen_base':
include/linux/minmax.h:18:28: warning: comparison of distinct pointer types lacks a cast
18 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
include/linux/minmax.h:32:4: note: in expansion of macro '__typecheck'
32 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
include/linux/minmax.h:42:24: note: in expansion of macro '__safe_cmp'
42 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
include/linux/minmax.h:51:19: note: in expansion of macro '__careful_cmp'
51 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
drivers/gpu/drm/drm_fb_helper.c:2115:22: note: in expansion of macro 'min'
2115 | size_t alloc_size = min(count, PAGE_SIZE);
| ^~~
Introduced by commit
222ec45f4c69 ("drm/fb_helper: Support framebuffers in I/O memory")
--
Cheers,
Stephen Rothwell
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