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author | Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de> | 2023-01-25 00:48:16 +0300 |
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committer | John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> | 2023-02-27 12:49:43 +0300 |
commit | 250870824c1cf199b032b1ef889c8e8d69d9123a (patch) | |
tree | 9a6d34972dc48336a2f57200ca8172a87159f7d9 /drivers/sh | |
parent | c9c3395d5e3dcc6daee66c6908354d47bf98cb0c (diff) | |
download | linux-250870824c1cf199b032b1ef889c8e8d69d9123a.tar.xz |
sh: intc: Avoid spurious sizeof-pointer-div warning
GCC warns about the pattern sizeof(void*)/sizeof(void), as it looks like
the abuse of a pattern to calculate the array size. This pattern appears
in the unevaluated part of the ternary operator in _INTC_ARRAY if the
parameter is NULL.
The replacement uses an alternate approach to return 0 in case of NULL
which does not generate the pattern sizeof(void*)/sizeof(void), but still
emits the warning if _INTC_ARRAY is called with a nonarray parameter.
This patch is required for successful compilation with -Werror enabled.
The idea to use _Generic for type distinction is taken from Comment #7
in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108483 by Jakub Jelinek
Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Link: https://lore.kernel.org/r/619fa552-c988-35e5-b1d7-fe256c46a272@mkarcher.dialup.fu-berlin.de
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Diffstat (limited to 'drivers/sh')
0 files changed, 0 insertions, 0 deletions