diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
index ca43f4d0b93751b3cb262889fb638cf9c07a7011..5adca78830b5e9a3349e5fb410188b0eb98e3bd3 100644
--- a/arch/alpha/include/asm/bitops.h
+++ b/arch/alpha/include/asm/bitops.h
@@ -391,9 +391,9 @@ static inline unsigned long __fls(unsigned long x)
return fls64(x) - 1;
}
-static inline int fls(int x)
+static inline int fls(unsigned int x)
{
- return fls64((unsigned int) x);
+ return fls64(x);
}
/*
diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 8da87feec59aab58a1309fbd5f92fb12b72d8799..ee9246184033b3138f8d09878fc7763502b11e5c 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -278,7 +278,7 @@ static inline __attribute__ ((const)) int clz(unsigned int x)
return res;
}
-static inline int constant_fls(int x)
+static inline int constant_fls(unsigned int x)
{
int r = 32;
@@ -312,7 +312,7 @@ static inline int constant_fls(int x)
* @result: [1-32]
* fls(1) = 1, fls(0x80000000) = 32, fls(0) = 0
*/
-static inline __attribute__ ((const)) int fls(unsigned long x)
+static inline __attribute__ ((const)) int fls(unsigned int x)
{
if (__builtin_constant_p(x))
return constant_fls(x);
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index f0ab012401b67c10d6717cab8aa52f6987ba0ba3..8b68234ace181bbacdbf9c709d86051fc09b11de 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -54,7 +54,7 @@ static inline unsigned long __ffs(unsigned long x)
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static inline int fls(int x)
+static inline int fls(unsigned int x)
{
if (!x)
return 0;
diff --git a/arch/csky/include/asm/bitops.h b/arch/csky/include/asm/bitops.h
index 335f2883fb1ee85aef5e6e4800f763c975047743..43b9838bff63d153a1942c1d292f8bc81af70599 100644
--- a/arch/csky/include/asm/bitops.h
+++ b/arch/csky/include/asm/bitops.h
@@ -40,7 +40,7 @@ static __always_inline unsigned long __ffs(unsigned long x)
/*
* asm-generic/bitops/fls.h
*/
-static __always_inline int fls(int x)
+static __always_inline int fls(unsigned int x)
{
asm volatile(
"ff1 %0\n"
diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 2691a1857d203db2522ae178fe744225c71d2da9..bee97426238705e78fca708d3d0d0c4b965cdb60 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -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 int fls(int x)
+static inline int fls(unsigned int x)
{
int r;
diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h
index 56a774bf13fa73fe3b9523f1d1f25bd3237f0243..2f24ee6459d20ff49e07ebdb1aa5c137c85e1953 100644
--- a/arch/ia64/include/asm/bitops.h
+++ b/arch/ia64/include/asm/bitops.h
@@ -388,8 +388,7 @@ ia64_fls (unsigned long x)
* Find the last (most significant) bit set. Returns 0 for x==0 and
* bits are numbered from 1..32 (e.g., fls(9) == 4).
*/
-static inline int
-fls (int t)
+static inline int fls(unsigned int t)
{
unsigned long x = t & 0xffffffffu;
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index d979f38af751cfeaa8a83cfc7389b15088ef3e21..10133a968c8e150b10d6cd0a9e778701bbaff882 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -502,7 +502,7 @@ static inline unsigned long __ffs(unsigned long x)
/*
* fls: find last bit set.
*/
-static inline int fls(int x)
+static inline int fls(unsigned int x)
{
int cnt;
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index f2a840fb6a9af6739a792359b3224f5b46d231f0..c4675957b21bca1e5be2cddd37f8af71a24eb6b9 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -555,7 +555,7 @@ static inline unsigned long __ffs(unsigned long word)
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static inline int fls(int x)
+static inline int fls(unsigned int x)
{
int r;
diff --git a/arch/openrisc/include/asm/bitops/fls.h b/arch/openrisc/include/asm/bitops/fls.h
index 9efbf9ad86c409bb8a6671e4a49ea50e2ec35bde..57de5a1115bfd99ea57a208e50057af2afe0b924 100644
--- a/arch/openrisc/include/asm/bitops/fls.h
+++ b/arch/openrisc/include/asm/bitops/fls.h
@@ -15,7 +15,7 @@
#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
-static inline int fls(int x)
+static inline int fls(unsigned int x)
{
int ret;
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index 53252d4f9a570c7a7ee889bbba7cb167d9bef2f9..a09eaebfdfd07f8caff2dbc2b77fa315770f10e0 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -188,7 +188,7 @@ static __inline__ int ffs(int x)
* fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static __inline__ int fls(int x)
+static __inline__ int fls(unsigned int x)
{
int ret;
if (!x)
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 86e5b2fdee3c8ee1b6da3f290de5be4b4460734c..d1f8a4d94cca02269841b6b6e0928ac699089b6b 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -397,9 +397,9 @@ static inline int fls64(unsigned long word)
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static inline int fls(int word)
+static inline int fls(unsigned int word)
{
- return fls64((unsigned int)word);
+ return fls64(word);
}
#else /* CONFIG_HAVE_MARCH_Z9_109_FEATURES */
diff --git a/arch/unicore32/include/asm/bitops.h b/arch/unicore32/include/asm/bitops.h
index c0cbdbe1716809115431e0c999363e37f7156d65..de5853761c22ca0b6485f12a06c73f25bb320286 100644
--- a/arch/unicore32/include/asm/bitops.h
+++ b/arch/unicore32/include/asm/bitops.h
@@ -22,7 +22,7 @@
* the cntlz instruction for much better code efficiency.
*/
-static inline int fls(int x)
+static inline int fls(unsigned int x)
{
int ret;
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 124f9195eb3ef5545f96fbb111ee4a111de5f0d0..ad7b210aa3f621c5902f4f077eab0932b4924593 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -448,7 +448,7 @@ static __always_inline int ffs(int x)
* set bit if value is nonzero. The last (most significant) bit is
* at position 32.
*/
-static __always_inline int fls(int x)
+static __always_inline int fls(unsigned int x)
{
int r;
diff --git a/include/asm-generic/bitops/builtin-fls.h b/include/asm-generic/bitops/builtin-fls.h
index 62daf940989df977d94be029beafcca21a777338..c8455cc28841afe18cfa24f7c24280836bfc58b7 100644
--- a/include/asm-generic/bitops/builtin-fls.h
+++ b/include/asm-generic/bitops/builtin-fls.h
@@ -9,7 +9,7 @@
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static __always_inline int fls(int x)
+static __always_inline int fls(unsigned int x)
{
return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
}
diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
index 753aecaab641a82d7f218988fcebe0751f7149ff..b168bb10e1be17bb6394e749c238da3940ea3a01 100644
--- a/include/asm-generic/bitops/fls.h
+++ b/include/asm-generic/bitops/fls.h
@@ -10,7 +10,7 @@
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static __always_inline int fls(int x)
+static __always_inline int fls(unsigned int x)
{
int r = 32;
diff --git a/tools/include/asm-generic/bitops/fls.h b/tools/include/asm-generic/bitops/fls.h
index 753aecaab641a82d7f218988fcebe0751f7149ff..b168bb10e1be17bb6394e749c238da3940ea3a01 100644
--- a/tools/include/asm-generic/bitops/fls.h
+++ b/tools/include/asm-generic/bitops/fls.h
@@ -10,7 +10,7 @@
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static __always_inline int fls(int x)
+static __always_inline int fls(unsigned int x)
{
int r = 32;