From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Yury Norov <yury.norov@gmail.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Mary Strodl <mstrodl@csh.rit.edu>,
linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>,
kernel test robot <lkp@intel.com>
Subject: [PATCH] m68k: bitops: Fix find_*_bit() signatures
Date: Wed, 10 Sep 2025 17:16:13 +0200 [thread overview]
Message-ID: <de6919554fbb4cd1427155c6bafbac8a9df822c8.1757517135.git.geert@linux-m68k.org> (raw)
The function signatures of the m68k-optimized implementations of the
find_{first,next}_{,zero_}bit() helpers do not match the generic
variants.
Fix this by changing all non-pointer inputs and outputs to "unsigned
long", and updating a few local variables.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202509092305.ncd9mzaZ-lkp@intel.com/
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
To be queued in the m68k tree for v6.18.
arch/m68k/include/asm/bitops.h | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index 139ec9289ff2d324..e9639e48c6c3c1da 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -350,12 +350,12 @@ static inline bool xor_unlock_is_negative_byte(unsigned long mask,
#include <asm-generic/bitops/ffz.h>
#else
-static inline int find_first_zero_bit(const unsigned long *vaddr,
- unsigned size)
+static inline unsigned long find_first_zero_bit(const unsigned long *vaddr,
+ unsigned long size)
{
const unsigned long *p = vaddr;
- int res = 32;
- unsigned int words;
+ unsigned long res = 32;
+ unsigned long words;
unsigned long num;
if (!size)
@@ -376,8 +376,9 @@ static inline int find_first_zero_bit(const unsigned long *vaddr,
}
#define find_first_zero_bit find_first_zero_bit
-static inline int find_next_zero_bit(const unsigned long *vaddr, int size,
- int offset)
+static inline unsigned long find_next_zero_bit(const unsigned long *vaddr,
+ unsigned long size,
+ unsigned long offset)
{
const unsigned long *p = vaddr + (offset >> 5);
int bit = offset & 31UL, res;
@@ -406,11 +407,12 @@ static inline int find_next_zero_bit(const unsigned long *vaddr, int size,
}
#define find_next_zero_bit find_next_zero_bit
-static inline int find_first_bit(const unsigned long *vaddr, unsigned size)
+static inline unsigned long find_first_bit(const unsigned long *vaddr,
+ unsigned long size)
{
const unsigned long *p = vaddr;
- int res = 32;
- unsigned int words;
+ unsigned long res = 32;
+ unsigned long words;
unsigned long num;
if (!size)
@@ -431,8 +433,9 @@ static inline int find_first_bit(const unsigned long *vaddr, unsigned size)
}
#define find_first_bit find_first_bit
-static inline int find_next_bit(const unsigned long *vaddr, int size,
- int offset)
+static inline unsigned long find_next_bit(const unsigned long *vaddr,
+ unsigned long size,
+ unsigned long offset)
{
const unsigned long *p = vaddr + (offset >> 5);
int bit = offset & 31UL, res;
--
2.43.0
next reply other threads:[~2025-09-10 15:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-10 15:16 Geert Uytterhoeven [this message]
2025-09-10 15:39 ` Yury Norov
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