[MIPS] R2 bitops compile fix for gcc < 4.0.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/include/asm-mips/bitops.h b/include/asm-mips/bitops.h
index 89436b9..8959da2 100644 (file)
--- a/include/asm-mips/bitops.h
+++ b/include/asm-mips/bitops.h
@@ -54,6 +54,7 @@
 static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 {
        unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+       unsigned short bit = nr & SZLONG_MASK;
        unsigned long temp;
 
        if (cpu_has_llsc && R10000_LLSC_WAR) {
@@ -65,9 +66,9 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
                "       beqzl   %0, 1b                                  \n"
                "       .set    mips0                                   \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
+               : "ir" (1UL << bit), "m" (*m));
 #ifdef CONFIG_CPU_MIPSR2
-       } else if (__builtin_constant_p(nr)) {
+       } else if (__builtin_constant_p(bit)) {
                __asm__ __volatile__(
                "1:     " __LL "%0, %1                  # set_bit       \n"
                "       " __INS "%0, %4, %2, 1                          \n"
@@ -77,7 +78,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
                "2:     b       1b                                      \n"
                "       .previous                                       \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (nr & SZLONG_MASK), "m" (*m), "r" (~0));
+               : "ir" (bit), "m" (*m), "r" (~0));
 #endif /* CONFIG_CPU_MIPSR2 */
        } else if (cpu_has_llsc) {
                __asm__ __volatile__(
@@ -91,14 +92,14 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
                "       .previous                                       \n"
                "       .set    mips0                                   \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
+               : "ir" (1UL << bit), "m" (*m));
        } else {
                volatile unsigned long *a = addr;
                unsigned long mask;
                unsigned long flags;
 
                a += nr >> SZLONG_LOG;
-               mask = 1UL << (nr & SZLONG_MASK);
+               mask = 1UL << bit;
                local_irq_save(flags);
                *a |= mask;
                local_irq_restore(flags);
@@ -118,6 +119,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 {
        unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+       unsigned short bit = nr & SZLONG_MASK;
        unsigned long temp;
 
        if (cpu_has_llsc && R10000_LLSC_WAR) {
@@ -129,9 +131,9 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
                "       beqzl   %0, 1b                                  \n"
                "       .set    mips0                                   \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (~(1UL << (nr & SZLONG_MASK))), "m" (*m));
+               : "ir" (~(1UL << bit)), "m" (*m));
 #ifdef CONFIG_CPU_MIPSR2
-       } else if (__builtin_constant_p(nr)) {
+       } else if (__builtin_constant_p(bit)) {
                __asm__ __volatile__(
                "1:     " __LL "%0, %1                  # clear_bit     \n"
                "       " __INS "%0, $0, %2, 1                          \n"
@@ -141,7 +143,7 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
                "2:     b       1b                                      \n"
                "       .previous                                       \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (nr & SZLONG_MASK), "m" (*m));
+               : "ir" (bit), "m" (*m));
 #endif /* CONFIG_CPU_MIPSR2 */
        } else if (cpu_has_llsc) {
                __asm__ __volatile__(
@@ -155,14 +157,14 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
                "       .previous                                       \n"
                "       .set    mips0                                   \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (~(1UL << (nr & SZLONG_MASK))), "m" (*m));
+               : "ir" (~(1UL << bit)), "m" (*m));
        } else {
                volatile unsigned long *a = addr;
                unsigned long mask;
                unsigned long flags;
 
                a += nr >> SZLONG_LOG;
-               mask = 1UL << (nr & SZLONG_MASK);
+               mask = 1UL << bit;
                local_irq_save(flags);
                *a &= ~mask;
                local_irq_restore(flags);
@@ -180,6 +182,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
  */
 static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 {
+       unsigned short bit = nr & SZLONG_MASK;
+
        if (cpu_has_llsc && R10000_LLSC_WAR) {
                unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
                unsigned long temp;
@@ -192,7 +196,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
                "       beqzl   %0, 1b                          \n"
                "       .set    mips0                           \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
+               : "ir" (1UL << bit), "m" (*m));
        } else if (cpu_has_llsc) {
                unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
                unsigned long temp;
@@ -208,14 +212,14 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
                "       .previous                               \n"
                "       .set    mips0                           \n"
                : "=&r" (temp), "=m" (*m)
-               : "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
+               : "ir" (1UL << bit), "m" (*m));
        } else {
                volatile unsigned long *a = addr;
                unsigned long mask;
                unsigned long flags;
 
                a += nr >> SZLONG_LOG;
-               mask = 1UL << (nr & SZLONG_MASK);
+               mask = 1UL << bit;
                local_irq_save(flags);
                *a ^= mask;
                local_irq_restore(flags);
@@ -233,6 +237,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 static inline int test_and_set_bit(unsigned long nr,
        volatile unsigned long *addr)
 {
+       unsigned short bit = nr & SZLONG_MASK;
+
        if (cpu_has_llsc && R10000_LLSC_WAR) {
                unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
                unsigned long temp, res;
@@ -246,7 +252,7 @@ static inline int test_and_set_bit(unsigned long nr,
                "       and     %2, %0, %3                              \n"
                "       .set    mips0                                   \n"
                : "=&r" (temp), "=m" (*m), "=&r" (res)
-               : "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
+               : "r" (1UL << bit), "m" (*m)
                : "memory");
 
                return res != 0;
@@ -269,7 +275,7 @@ static inline int test_and_set_bit(unsigned long nr,
                "       .previous                                       \n"
                "       .set    pop                                     \n"
                : "=&r" (temp), "=m" (*m), "=&r" (res)
-               : "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
+               : "r" (1UL << bit), "m" (*m)
                : "memory");
 
                return res != 0;
@@ -280,7 +286,7 @@ static inline int test_and_set_bit(unsigned long nr,
                unsigned long flags;
 
                a += nr >> SZLONG_LOG;
-               mask = 1UL << (nr & SZLONG_MASK);
+               mask = 1UL << bit;
                local_irq_save(flags);
                retval = (mask & *a) != 0;
                *a |= mask;
@@ -303,6 +309,8 @@ static inline int test_and_set_bit(unsigned long nr,
 static inline int test_and_clear_bit(unsigned long nr,
        volatile unsigned long *addr)
 {
+       unsigned short bit = nr & SZLONG_MASK;
+
        if (cpu_has_llsc && R10000_LLSC_WAR) {
                unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
                unsigned long temp, res;
@@ -317,7 +325,7 @@ static inline int test_and_clear_bit(unsigned long nr,
                "       and     %2, %0, %3                              \n"
                "       .set    mips0                                   \n"
                : "=&r" (temp), "=m" (*m), "=&r" (res)
-               : "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
+               : "r" (1UL << bit), "m" (*m)
                : "memory");
 
                return res != 0;
@@ -336,7 +344,7 @@ static inline int test_and_clear_bit(unsigned long nr,
                "2:     b       1b                                      \n"
                "       .previous                                       \n"
                : "=&r" (temp), "=m" (*m), "=&r" (res)
-               : "ri" (nr & SZLONG_MASK), "m" (*m)
+               : "ri" (bit), "m" (*m)
                : "memory");
 
                return res;
@@ -361,7 +369,7 @@ static inline int test_and_clear_bit(unsigned long nr,
                "       .previous                                       \n"
                "       .set    pop                                     \n"
                : "=&r" (temp), "=m" (*m), "=&r" (res)
-               : "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
+               : "r" (1UL << bit), "m" (*m)
                : "memory");
 
                return res != 0;
@@ -372,7 +380,7 @@ static inline int test_and_clear_bit(unsigned long nr,
                unsigned long flags;
 
                a += nr >> SZLONG_LOG;
-               mask = 1UL << (nr & SZLONG_MASK);
+               mask = 1UL << bit;
                local_irq_save(flags);
                retval = (mask & *a) != 0;
                *a &= ~mask;
@@ -395,6 +403,8 @@ static inline int test_and_clear_bit(unsigned long nr,
 static inline int test_and_change_bit(unsigned long nr,
        volatile unsigned long *addr)
 {
+       unsigned short bit = nr & SZLONG_MASK;
+
        if (cpu_has_llsc && R10000_LLSC_WAR) {
                unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
                unsigned long temp, res;
@@ -408,7 +418,7 @@ static inline int test_and_change_bit(unsigned long nr,
                "       and     %2, %0, %3                              \n"
                "       .set    mips0                                   \n"
                : "=&r" (temp), "=m" (*m), "=&r" (res)
-               : "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
+               : "r" (1UL << bit), "m" (*m)
                : "memory");
 
                return res != 0;
@@ -431,7 +441,7 @@ static inline int test_and_change_bit(unsigned long nr,
                "       .previous                                       \n"
                "       .set    pop                                     \n"
                : "=&r" (temp), "=m" (*m), "=&r" (res)
-               : "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
+               : "r" (1UL << bit), "m" (*m)
                : "memory");
 
                return res != 0;
@@ -441,7 +451,7 @@ static inline int test_and_change_bit(unsigned long nr,
                unsigned long flags;
 
                a += nr >> SZLONG_LOG;
-               mask = 1UL << (nr & SZLONG_MASK);
+               mask = 1UL << bit;
                local_irq_save(flags);
                retval = (mask & *a) != 0;
                *a ^= mask;