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author | Geert Uytterhoeven <geert@linux-m68k.org> | 2021-03-05 11:41:22 +0300 |
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committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2021-03-06 16:15:07 +0300 |
commit | a65a802aadba072ca7514fc0c301fd7fdc6fc6cb (patch) | |
tree | 7944bfe1da3d75470bb8602dbf3e9209a1741e46 /kernel/time/posix-cpu-timers.c | |
parent | a38fd8748464831584a19438cbb3082b5a2dab15 (diff) | |
download | linux-a65a802aadba072ca7514fc0c301fd7fdc6fc6cb.tar.xz |
m68k: Fix virt_addr_valid() W=1 compiler warnings
If CONFIG_DEBUG_SG=y, and CONFIG_MMU=y:
include/linux/scatterlist.h: In function ‘sg_set_buf’:
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
or CONFIG_MMU=n:
include/linux/scatterlist.h: In function ‘sg_set_buf’:
arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra]
33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
| ^~
Fix this by doing the comparison in the "unsigned long" instead of the
"void *" domain.
Note that for now this is only seen when compiling btrfs, due to commit
e9aa7c285d20a69c ("btrfs: enable W=1 checks for btrfs"), but as people
are doing more W=1 compile testing, it will start to show up elsewhere,
too.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Link: https://lore.kernel.org/r/20210305084122.4118826-1-geert@linux-m68k.org
Diffstat (limited to 'kernel/time/posix-cpu-timers.c')
0 files changed, 0 insertions, 0 deletions