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| author | David Laight <David.Laight@ACULAB.COM> | 2023-09-18 11:18:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-05 23:14:21 +0300 |
| commit | 701405f53d1bda636edf0dc49ab4569e6dde210e (patch) | |
| tree | 5df18e964b663712d5e32e7daee7d969578f2813 /include | |
| parent | b0c7fd162fa45b2f0ce7ab6949291f0158f7f143 (diff) | |
| download | linux-701405f53d1bda636edf0dc49ab4569e6dde210e.tar.xz | |
minmax: allow comparisons of 'int' against 'unsigned char/short'
commit 4ead534fba42fc4fd41163297528d2aa731cd121 upstream.
Since 'unsigned char/short' get promoted to 'signed int' it is safe to
compare them against an 'int' value.
Link: https://lkml.kernel.org/r/8732ef5f809c47c28a7be47c938b28d4@AcuMS.aculab.com
Signed-off-by: David Laight <david.laight@aculab.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/minmax.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/minmax.h b/include/linux/minmax.h index c0e738eacefa..842c1db62ffe 100644 --- a/include/linux/minmax.h +++ b/include/linux/minmax.h @@ -26,8 +26,9 @@ __builtin_choose_expr(__is_constexpr(is_signed_type(typeof(x))), \ is_signed_type(typeof(x)), 0) -#define __types_ok(x, y) \ - (__is_signed(x) == __is_signed(y)) +#define __types_ok(x, y) \ + (__is_signed(x) == __is_signed(y) || \ + __is_signed((x) + 0) == __is_signed((y) + 0)) #define __cmp_op_min < #define __cmp_op_max > |