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From: Chen Gang <gang.chen@asianux.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Mike Frysinger <vapier@gentoo.org>,
	takata@linux-m32r.org,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	realmz paranoid <realmz6@gmail.com>,
	linux390@de.ibm.com,
	"uclinux-dist-devel@blackfin.uclinux.org" 
	<uclinux-dist-devel@blackfin.uclinux.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linux-m32r@ml.linux-m32r.org, linux-m32r-ja@ml.linux-m32r.org,
	linux-s390@vger.kernel.org,
	Linux-Arch <linux-arch@vger.kernel.org>,
	Marc Gauthier <Marc.Gauthier@tensilica.com>
Subject: [PATCH v2] arch: asm-generic: for atomic_set_mask() 1st param, use 'unsigned int' instead of 'unsigned long'
Date: Sun, 09 Jun 2013 14:31:42 +0800	[thread overview]
Message-ID: <51B4214E.6090007@asianux.com> (raw)
In-Reply-To: <CAErSpo5pg0EvJOR9nn3B0d+q0o6zsdwzM41AQx=AHfynRqX3hQ@mail.gmail.com>


atomic_set_mask() and atomic_clear_mask() are the pairs, so the related
parameters' type need match with each other.

The type of 'addr->counter' is 'int', so use 'unsigned int' instead
of 'unsigned long', and let atomic_set_mask() match atomic_clear_mask().


For arch sub-system, currently, have 3 types of definition for them:
1st for 'int', 2nd for 'long', 3rd is conflict to use 'int' and 'long'.

At least, better to fix 3rd (conflict using 'int' and 'long').


using 'long':
  ./h8300/include/asm/atomic.h:129:static __inline__ void atomic_set_mask(unsigned long mask, unsigned long *v)
  ./h8300/include/asm/atomic.h:118:static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *v)
  ./mn10300/include/asm/atomic.h:211:static inline void atomic_set_mask(unsigned long mask, unsigned long *addr)
  ./mn10300/include/asm/atomic.h:177:static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
  ./m68k/include/asm/atomic.h:192:static inline void atomic_set_mask(unsigned long mask, unsigned long *v)
  ./m68k/include/asm/atomic.h:187:static inline void atomic_clear_mask(unsigned long mask, unsigned long *v)
  ./frv/include/asm/bitops.h:113:#define atomic_set_mask(mask, v) atomic_test_and_OR_mask((mask), (v))
  ./frv/include/asm/bitops.h:112:#define atomic_clear_mask(mask, v)       atomic_test_and_ANDNOT_mask((mask), (v))
  ./x86/include/asm/atomic.h:260:#define atomic_set_mask(mask, addr)                              \
  ./x86/include/asm/atomic.h:256:#define atomic_clear_mask(mask, addr)                            \

also using 'long': (but only atomic_clear_mask, no atomic_set_mask)
  ./arm64/include/asm/atomic.h:129:static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
  ./arc/include/asm/atomic.h:89:static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
  ./arc/include/asm/atomic.h:182:static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
  ./arm/include/asm/atomic.h:137:static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
  ./arm/include/asm/atomic.h:200:static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)

using 'int':
  ./metag/include/asm/atomic_lock1.h:100:static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
  ./metag/include/asm/atomic_lnkget.h:127:static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
  ./metag/include/asm/atomic_lock1.h:90:static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
  ./metag/include/asm/atomic_lnkget.h:110:static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
  ./sh/include/asm/atomic-grb.h:104:static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
  ./sh/include/asm/atomic-irq.h:64:static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
  ./sh/include/asm/atomic-llsc.h:93:static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
  ./sh/include/asm/atomic-grb.h:84:static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
  ./sh/include/asm/atomic-irq.h:55:static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
  ./sh/include/asm/atomic-llsc.h:79:static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
  ./xtensa/include/asm/atomic.h:357:static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
  ./xtensa/include/asm/atomic.h:322:static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)

also using 'int', (better to notice 'signed' and 'unsigned'):
  ./blackfin/include/asm/atomic.h:31:#define atomic_set_mask(m, v)   __raw_atomic_set_asm(&(v)->counter, m)
  ./blackfin/include/asm/atomic.h:30:#define atomic_clear_mask(m, v) __raw_atomic_clear_asm(&(v)->counter, m)

conflict to use 'int' and 'long':
  ./m32r/include/asm/atomic.h:289:static __inline__ void atomic_set_mask(unsigned long  mask, atomic_t *addr)
  ./m32r/include/asm/atomic.h:267:static __inline__ void atomic_clear_mask(unsigned long  mask, atomic_t *addr)
  ./s390/include/asm/atomic.h:79:static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
  ./s390/include/asm/atomic.h:74:static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
  (in fact, 'generic' is also conflict to use 'int' and 'long')



Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/blackfin/include/asm/atomic.h |    4 ++--
 arch/m32r/include/asm/atomic.h     |    8 ++++----
 arch/s390/include/asm/atomic.h     |    4 ++--
 include/asm-generic/atomic.h       |    2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h
index a107a98..feefef8 100644
--- a/arch/blackfin/include/asm/atomic.h
+++ b/arch/blackfin/include/asm/atomic.h
@@ -27,8 +27,8 @@ asmlinkage int __raw_atomic_test_asm(const volatile int *ptr, int value);
 #define atomic_add_return(i, v) __raw_atomic_update_asm(&(v)->counter, i)
 #define atomic_sub_return(i, v) __raw_atomic_update_asm(&(v)->counter, -(i))
 
-#define atomic_clear_mask(m, v) __raw_atomic_clear_asm(&(v)->counter, m)
-#define atomic_set_mask(m, v)   __raw_atomic_set_asm(&(v)->counter, m)
+#define atomic_clear_mask(m, v) __raw_atomic_clear_asm(&(v)->counter, (int)(m))
+#define atomic_set_mask(m, v)   __raw_atomic_set_asm(&(v)->counter, (int)(m))
 
 #endif
 
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index 0d81697..71237e0 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -264,10 +264,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 
-static __inline__ void atomic_clear_mask(unsigned long  mask, atomic_t *addr)
+static __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *addr)
 {
 	unsigned long flags;
-	unsigned long tmp;
+	unsigned int tmp;
 
 	local_irq_save(flags);
 	__asm__ __volatile__ (
@@ -286,10 +286,10 @@ static __inline__ void atomic_clear_mask(unsigned long  mask, atomic_t *addr)
 	local_irq_restore(flags);
 }
 
-static __inline__ void atomic_set_mask(unsigned long  mask, atomic_t *addr)
+static __inline__ void atomic_set_mask(unsigned int mask, atomic_t *addr)
 {
 	unsigned long flags;
-	unsigned long tmp;
+	unsigned int tmp;
 
 	local_irq_save(flags);
 	__asm__ __volatile__ (
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index c797832..82cd683 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -71,12 +71,12 @@ static inline int atomic_sub_return(int i, atomic_t *v)
 #define atomic_dec_return(_v)		atomic_sub_return(1, _v)
 #define atomic_dec_and_test(_v)		(atomic_sub_return(1, _v) == 0)
 
-static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
 	__CS_LOOP(v, ~mask, "nr");
 }
 
-static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
+static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
 {
 	__CS_LOOP(v, mask, "or");
 }
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index 33bd2de..f31bff97 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -153,7 +153,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
  * Atomically clears the bits set in @mask from @v
  */
 #ifndef atomic_clear_mask
-static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
 	unsigned long flags;
 
-- 
1.7.7.6

  parent reply	other threads:[~2013-06-09  6:32 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-08  7:50 [PATCH] arch: asm-geniric: for atomic_set_mask() 1st param, use 'unsigned int' instead of 'unsigned long' Chen Gang
2013-06-08  8:31 ` Geert Uytterhoeven
2013-06-08  8:37   ` Chen Gang
2013-06-08 17:49 ` Bjorn Helgaas
2013-06-09  1:52   ` Chen Gang
2013-06-10 17:00     ` Bjorn Helgaas
2013-06-13  1:47       ` Chen Gang
2013-06-09  6:31   ` Chen Gang [this message]
2013-06-10  9:21     ` [PATCH v2] arch: asm-generic: " Heiko Carstens
2013-06-13  1:19       ` Chen Gang
2013-06-26  2:03         ` Chen Gang
2013-07-05  1:11           ` Chen Gang

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