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[PATCHv2 1/2] x86: asm/bitops.h

Started byJoakim Tjernlund <joakim.tjernlund@infinera.com>
First post2017-03-17 18:20 +0100
Last post2017-03-17 18:20 +0100
Articles 2 — 1 participant

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  [PATCHv2 1/2] x86: asm/bitops.h Joakim Tjernlund <joakim.tjernlund@infinera.com> - 2017-03-17 18:20 +0100
    [PATCHv2 2/2] x86: Match bitops prototypes Joakim Tjernlund <joakim.tjernlund@infinera.com> - 2017-03-17 18:20 +0100

#1603468 — [PATCHv2 1/2] x86: asm/bitops.h

FromJoakim Tjernlund <joakim.tjernlund@infinera.com>
Date2017-03-17 18:20 +0100
Subject[PATCHv2 1/2] x86: asm/bitops.h
Message-ID<tm3HI-1mJ-33@gated-at.bofh.it>
VirtualBox modules complains when doing pointer arithmetic's,
replace void * cast with uintptr_t to do pointer arithmetic's
in integer space instead.

Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
---
 v2 - Improve wording

 arch/x86/include/asm/bitops.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 8540227..b561304 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -50,7 +50,7 @@
  * a mask operation on a byte.
  */
 #define IS_IMMEDIATE(nr)		(__builtin_constant_p(nr))
-#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((void *)(addr) + ((nr)>>3))
+#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((uintptr_t)(addr) + ((nr)>>3))
 #define CONST_MASK(nr)			(1 << ((nr) & 7))
 
 /**
-- 
2.10.2

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#1603470 — [PATCHv2 2/2] x86: Match bitops prototypes

FromJoakim Tjernlund <joakim.tjernlund@infinera.com>
Date2017-03-17 18:20 +0100
Subject[PATCHv2 2/2] x86: Match bitops prototypes
Message-ID<tm3HI-1mJ-31@gated-at.bofh.it>
In reply to#1603468
Building VirtualBox modules causes type mismatch complaints when
mixing void * and unsigned long *.
Adjust bitops function prototypes in asm-generic/bitops/le.h
to match the generic ones in arch/x86/include/asm/le.h
That is, replace void* with unsigned long *

Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
---
 v2 - Improve wording

 include/asm-generic/bitops/le.h | 42 ++++++++++++++++++++++-------------------
 1 file changed, 23 insertions(+), 19 deletions(-)

diff --git a/include/asm-generic/bitops/le.h b/include/asm-generic/bitops/le.h
index 6173154..92a3afa 100644
--- a/include/asm-generic/bitops/le.h
+++ b/include/asm-generic/bitops/le.h
@@ -8,20 +8,22 @@
 
 #define BITOP_LE_SWIZZLE	0
 
-static inline unsigned long find_next_zero_bit_le(const void *addr,
-		unsigned long size, unsigned long offset)
+static inline unsigned long find_next_zero_bit_le(const unsigned long *addr,
+                                                  unsigned long size,
+                                                  unsigned long offset)
 {
 	return find_next_zero_bit(addr, size, offset);
 }
 
-static inline unsigned long find_next_bit_le(const void *addr,
-		unsigned long size, unsigned long offset)
+static inline unsigned long find_next_bit_le(const unsigned long *addr,
+                                             unsigned long size,
+                                             unsigned long offset)
 {
 	return find_next_bit(addr, size, offset);
 }
 
-static inline unsigned long find_first_zero_bit_le(const void *addr,
-		unsigned long size)
+static inline unsigned long find_first_zero_bit_le(const unsigned long *addr,
+                                                   unsigned long size)
 {
 	return find_first_zero_bit(addr, size);
 }
@@ -31,13 +33,15 @@ static inline unsigned long find_first_zero_bit_le(const void *addr,
 #define BITOP_LE_SWIZZLE	((BITS_PER_LONG-1) & ~0x7)
 
 #ifndef find_next_zero_bit_le
-extern unsigned long find_next_zero_bit_le(const void *addr,
-		unsigned long size, unsigned long offset);
+extern unsigned long find_next_zero_bit_le(const unsigned long *addr,
+                                           unsigned long size,
+                                           unsigned long offset);
 #endif
 
 #ifndef find_next_bit_le
-extern unsigned long find_next_bit_le(const void *addr,
-		unsigned long size, unsigned long offset);
+extern unsigned long find_next_bit_le(const unsigned long *addr,
+                                      unsigned long size,
+                                      unsigned long offset);
 #endif
 
 #ifndef find_first_zero_bit_le
@@ -49,47 +53,47 @@ extern unsigned long find_next_bit_le(const void *addr,
 #error "Please fix <asm/byteorder.h>"
 #endif
 
-static inline int test_bit_le(int nr, const void *addr)
+static inline int test_bit_le(int nr, const unsigned long *addr)
 {
 	return test_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline void set_bit_le(int nr, void *addr)
+static inline void set_bit_le(int nr, unsigned long *addr)
 {
 	set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline void clear_bit_le(int nr, void *addr)
+static inline void clear_bit_le(int nr, unsigned long *addr)
 {
 	clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline void __set_bit_le(int nr, void *addr)
+static inline void __set_bit_le(int nr, unsigned long *addr)
 {
 	__set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline void __clear_bit_le(int nr, void *addr)
+static inline void __clear_bit_le(int nr, unsigned long *addr)
 {
 	__clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline int test_and_set_bit_le(int nr, void *addr)
+static inline int test_and_set_bit_le(int nr, unsigned long *addr)
 {
 	return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline int test_and_clear_bit_le(int nr, void *addr)
+static inline int test_and_clear_bit_le(int nr, unsigned long *addr)
 {
 	return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline int __test_and_set_bit_le(int nr, void *addr)
+static inline int __test_and_set_bit_le(int nr, unsigned long *addr)
 {
 	return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
 
-static inline int __test_and_clear_bit_le(int nr, void *addr)
+static inline int __test_and_clear_bit_le(int nr, unsigned long *addr)
 {
 	return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
 }
-- 
2.10.2

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