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authorMaxime Ripard <mripard@kernel.org>2025-12-15 09:27:39 +0100
committerMaxime Ripard <mripard@kernel.org>2025-12-15 09:27:39 +0100
commit7f790dd21a931c61167f7bdc327aecf2cebad327 (patch)
tree403753d3fa904d70b50cf16eee03ff241a6b3135 /include/linux/math.h
parentd8684ae1cdcf848d21e00bc0e0de821d694a207b (diff)
parent8f0b4cce4481fb22653697cced8d0d04027cb1e8 (diff)
Merge drm/drm-next into drm-misc-next
Let's kickstart the v6.20 (7.0?) release cycle. Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'include/linux/math.h')
-rw-r--r--include/linux/math.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/include/linux/math.h b/include/linux/math.h
index 0198c92cbe3e..6dc1d1d32fbc 100644
--- a/include/linux/math.h
+++ b/include/linux/math.h
@@ -148,11 +148,16 @@ __STRUCT_FRACT(u32)
/**
* abs - return absolute value of an argument
- * @x: the value. If it is unsigned type, it is converted to signed type first.
- * char is treated as if it was signed (regardless of whether it really is)
- * but the macro's return type is preserved as char.
+ * @x: the value.
*
- * Return: an absolute value of x.
+ * If it is unsigned type, @x is converted to signed type first.
+ * char is treated as if it was signed (regardless of whether it really is)
+ * but the macro's return type is preserved as char.
+ *
+ * NOTE, for signed type if @x is the minimum, the returned result is undefined
+ * as there is not enough bits to represent it as a positive number.
+ *
+ * Return: an absolute value of @x.
*/
#define abs(x) __abs_choose_expr(x, long long, \
__abs_choose_expr(x, long, \