linux-kernel - [PATCH 1/3] hexagon: fix ffz/fls/ffs return type

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Date:   Fri,  6 Apr 2018 16:28:21 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Richard Kuo <rkuo@...eaurora.org>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-hexagon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] hexagon: fix ffz/fls/ffs return type

Let's use the same return type as the major architectures to
avoid warnings like

drivers/ata/libahci_platform.c: In function 'ahci_platform_init_host':
drivers/ata/libahci_platform.c:561:12: warning: comparison of distinct pointer types lacks a cast [enabled by default]

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/hexagon/include/asm/bitops.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 5e4a59b3ec1b..8790a50b1f5e 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -194,7 +194,7 @@ static inline int __test_bit(int nr, const volatile unsigned long *addr)
  *
  * Undefined if no zero exists, so code should check against ~0UL first.
  */
-static inline long ffz(int x)
+static inline int ffz(int x)
 {
 	int r;
 
@@ -211,7 +211,7 @@ static inline long ffz(int x)
  * This is defined the same way as ffs.
  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
-static inline long fls(int x)
+static inline int fls(int x)
 {
 	int r;
 
@@ -232,7 +232,7 @@ static inline long fls(int x)
  * the libc and compiler builtin ffs routines, therefore
  * differs in spirit from the above ffz (man ffs).
  */
-static inline long ffs(int x)
+static inline int ffs(int x)
 {
 	int r;
 
-- 
2.9.0