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* [PATCH] hweight: typecast return types
@ 2005-03-03  5:58 Randy.Dunlap
  0 siblings, 0 replies; only message in thread
From: Randy.Dunlap @ 2005-03-03  5:58 UTC (permalink / raw)
  To: lkml; +Cc: akpm


Make hweight() macros return unsigned int for 8,16,32 bits,
instead of requiring callers to do that.

drivers/input/joystick/analog.c:414: warning: int format, different type arg (arg 3)
drivers/input/joystick/analog.c:414: warning: int format, different type arg (arg 4)
drivers/input/joystick/analog.c:418: warning: int format, different type arg (arg 4)

Note:  does not address parisc, s390, or sparc64...
waiting for comments.

Signed-off-by: Randy Dunlap <rddunlap@osdl.org>

diffstat:=
 include/asm-alpha/bitops.h |    6 +++---
 include/asm-ia64/bitops.h  |    6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff -Naurp ./include/asm-alpha/bitops.h~hweight_types ./include/asm-alpha/bitops.h
--- ./include/asm-alpha/bitops.h~hweight_types	2005-03-01 23:38:09.000000000 -0800
+++ ./include/asm-alpha/bitops.h	2005-03-02 12:56:01.746250696 -0800
@@ -353,9 +353,9 @@ static inline unsigned long hweight64(un
 	return __kernel_ctpop(w);
 }
 
-#define hweight32(x) hweight64((x) & 0xfffffffful)
-#define hweight16(x) hweight64((x) & 0xfffful)
-#define hweight8(x)  hweight64((x) & 0xfful)
+#define hweight32(x)	(unsigned int) hweight64((x) & 0xfffffffful)
+#define hweight16(x)	(unsigned int) hweight64((x) & 0xfffful)
+#define hweight8(x)	(unsigned int) hweight64((x) & 0xfful)
 #else
 static inline unsigned long hweight64(unsigned long w)
 {
diff -Naurp ./include/asm-ia64/bitops.h~hweight_types ./include/asm-ia64/bitops.h
--- ./include/asm-ia64/bitops.h~hweight_types	2005-03-01 23:38:38.000000000 -0800
+++ ./include/asm-ia64/bitops.h	2005-03-02 12:59:27.282004512 -0800
@@ -353,9 +353,9 @@ hweight64 (unsigned long x)
 	return result;
 }
 
-#define hweight32(x) hweight64 ((x) & 0xfffffffful)
-#define hweight16(x) hweight64 ((x) & 0xfffful)
-#define hweight8(x)  hweight64 ((x) & 0xfful)
+#define hweight32(x)	(unsigned int) hweight64((x) & 0xfffffffful)
+#define hweight16(x)	(unsigned int) hweight64((x) & 0xfffful)
+#define hweight8(x)	(unsigned int) hweight64((x) & 0xfful)
 
 #endif /* __KERNEL__ */
 

---

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2005-03-03  5:58 [PATCH] hweight: typecast return types Randy.Dunlap

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