Replace "extern inline" with "static inline"

A number of headers define functions as "extern inline" which is
causing problems with gcc5.  The reason is that starting with
version 5.1, gcc defaults to the standard C99 semantics for the
inline keyword.

Under the traditional GNU inline semantics, an "extern inline"
function would never create an external definition, the same
as inline *without* extern in C99.  In C99, and "extern inline"
definition is simply an external definition with an inline hint.
In short, the meanings of inline with and without extern are
swapped between GNU and C99.

The upshot is that all these definitions in header files create
an external definition wherever those headers are included,
resulting in multiple definition errors at link time.

Changing all these functions to "static inline" fixes the problem
since this works as desired in all gcc versions.  Although the
semantics are slightly different (a static inline definition may
result in an actual function being emitted), it works as intended
in practice.

This patch also removes extern prototype declarations for the
changed functions where they existed.

Signed-off-by: Mans Rullgard <mans@mansr.com>

6 files changed, 76 insertions, 83 deletions

diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index 43a2bb2b3e..87efcca68a 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -19,7 +19,7 @@ typedef struct { int counter; } atomic_t;
 extern void atomic_clear_mask(unsigned long mask, unsigned long *addr);
 extern void atomic_set_mask(unsigned long mask, unsigned long *addr);
 
-extern __inline__ int atomic_add_return(int a, atomic_t *v)
+static __inline__ int atomic_add_return(int a, atomic_t *v)
 {
 	int t;
 
@@ -35,7 +35,7 @@ extern __inline__ int atomic_add_return(int a, atomic_t *v)
 	return t;
 }
 
-extern __inline__ int atomic_sub_return(int a, atomic_t *v)
+static __inline__ int atomic_sub_return(int a, atomic_t *v)
 {
 	int t;
 
@@ -51,7 +51,7 @@ extern __inline__ int atomic_sub_return(int a, atomic_t *v)
 	return t;
 }
 
-extern __inline__ int atomic_inc_return(atomic_t *v)
+static __inline__ int atomic_inc_return(atomic_t *v)
 {
 	int t;
 
@@ -67,7 +67,7 @@ extern __inline__ int atomic_inc_return(atomic_t *v)
 	return t;
 }
 
-extern __inline__ int atomic_dec_return(atomic_t *v)
+static __inline__ int atomic_dec_return(atomic_t *v)
 {
 	int t;
 
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 14217ef751..96491b6e4e 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -8,13 +8,6 @@
 #include <asm/byteorder.h>
 #include <asm-generic/bitops/__ffs.h>
 
-extern void set_bit(int nr, volatile void *addr);
-extern void clear_bit(int nr, volatile void *addr);
-extern void change_bit(int nr, volatile void *addr);
-extern int test_and_set_bit(int nr, volatile void *addr);
-extern int test_and_clear_bit(int nr, volatile void *addr);
-extern int test_and_change_bit(int nr, volatile void *addr);
-
 /*
  * Arguably these bit operations don't imply any memory barrier or
  * SMP ordering, but in fact a lot of drivers expect them to imply
@@ -35,7 +28,7 @@ extern int test_and_change_bit(int nr, volatile void *addr);
  * These used to be if'd out here because using : "cc" as a constraint
  * resulted in errors from egcs.  Things may be OK with gcc-2.95.
  */
-extern __inline__ void set_bit(int nr, volatile void * addr)
+static __inline__ void set_bit(int nr, volatile void * addr)
 {
 	unsigned long old;
 	unsigned long mask = 1 << (nr & 0x1f);
@@ -52,7 +45,7 @@ extern __inline__ void set_bit(int nr, volatile void * addr)
 	: "cc" );
 }
 
-extern __inline__ void clear_bit(int nr, volatile void *addr)
+static __inline__ void clear_bit(int nr, volatile void *addr)
 {
 	unsigned long old;
 	unsigned long mask = 1 << (nr & 0x1f);
@@ -69,7 +62,7 @@ extern __inline__ void clear_bit(int nr, volatile void *addr)
 	: "cc");
 }
 
-extern __inline__ void change_bit(int nr, volatile void *addr)
+static __inline__ void change_bit(int nr, volatile void *addr)
 {
 	unsigned long old;
 	unsigned long mask = 1 << (nr & 0x1f);
@@ -86,7 +79,7 @@ extern __inline__ void change_bit(int nr, volatile void *addr)
 	: "cc");
 }
 
-extern __inline__ int test_and_set_bit(int nr, volatile void *addr)
+static __inline__ int test_and_set_bit(int nr, volatile void *addr)
 {
 	unsigned int old, t;
 	unsigned int mask = 1 << (nr & 0x1f);
@@ -105,7 +98,7 @@ extern __inline__ int test_and_set_bit(int nr, volatile void *addr)
 	return (old & mask) != 0;
 }
 
-extern __inline__ int test_and_clear_bit(int nr, volatile void *addr)
+static __inline__ int test_and_clear_bit(int nr, volatile void *addr)
 {
 	unsigned int old, t;
 	unsigned int mask = 1 << (nr & 0x1f);
@@ -124,7 +117,7 @@ extern __inline__ int test_and_clear_bit(int nr, volatile void *addr)
 	return (old & mask) != 0;
 }
 
-extern __inline__ int test_and_change_bit(int nr, volatile void *addr)
+static __inline__ int test_and_change_bit(int nr, volatile void *addr)
 {
 	unsigned int old, t;
 	unsigned int mask = 1 << (nr & 0x1f);
@@ -144,7 +137,7 @@ extern __inline__ int test_and_change_bit(int nr, volatile void *addr)
 }
 #endif /* __INLINE_BITOPS */
 
-extern __inline__ int test_bit(int nr, __const__ volatile void *addr)
+static __inline__ int test_bit(int nr, __const__ volatile void *addr)
 {
 	__const__ unsigned int *p = (__const__ unsigned int *) addr;
 
@@ -153,7 +146,7 @@ extern __inline__ int test_bit(int nr, __const__ volatile void *addr)
 
 /* Return the bit position of the most significant 1 bit in a word */
 /* - the result is undefined when x == 0 */
-extern __inline__ int __ilog2(unsigned int x)
+static __inline__ int __ilog2(unsigned int x)
 {
 	int lz;
 
@@ -161,7 +154,7 @@ extern __inline__ int __ilog2(unsigned int x)
 	return 31 - lz;
 }
 
-extern __inline__ int ffz(unsigned int x)
+static __inline__ int ffz(unsigned int x)
 {
 	if ((x = ~x) == 0)
 		return 32;
@@ -217,7 +210,7 @@ static inline int fls64(__u64 x)
  * the libc and compiler builtin ffs routines, therefore
  * differs in spirit from the above ffz (man ffs).
  */
-extern __inline__ int ffs(int x)
+static __inline__ int ffs(int x)
 {
 	return __ilog2(x & -x) + 1;
 }
@@ -241,7 +234,7 @@ extern __inline__ int ffs(int x)
 #define find_first_zero_bit(addr, size) \
 	find_next_zero_bit((addr), (size), 0)
 
-extern __inline__ unsigned long find_next_zero_bit(void * addr,
+static __inline__ unsigned long find_next_zero_bit(void * addr,
 	unsigned long size, unsigned long offset)
 {
 	unsigned int * p = ((unsigned int *) addr) + (offset >> 5);
@@ -289,7 +282,7 @@ found_middle:
 #define ext2_clear_bit(nr, addr)	test_and_clear_bit((nr) ^ 0x18, addr)
 
 #else
-extern __inline__ int ext2_set_bit(int nr, void * addr)
+static __inline__ int ext2_set_bit(int nr, void * addr)
 {
 	int		mask;
 	unsigned char	*ADDR = (unsigned char *) addr;
@@ -302,7 +295,7 @@ extern __inline__ int ext2_set_bit(int nr, void * addr)
 	return oldbit;
 }
 
-extern __inline__ int ext2_clear_bit(int nr, void * addr)
+static __inline__ int ext2_clear_bit(int nr, void * addr)
 {
 	int		mask;
 	unsigned char	*ADDR = (unsigned char *) addr;
@@ -316,7 +309,7 @@ extern __inline__ int ext2_clear_bit(int nr, void * addr)
 }
 #endif	/* __KERNEL__ */
 
-extern __inline__ int ext2_test_bit(int nr, __const__ void * addr)
+static __inline__ int ext2_test_bit(int nr, __const__ void * addr)
 {
 	__const__ unsigned char	*ADDR = (__const__ unsigned char *) addr;
 
diff --git a/arch/powerpc/include/asm/byteorder.h b/arch/powerpc/include/asm/byteorder.h
index 3f5bcf63a1..f731d18e76 100644
--- a/arch/powerpc/include/asm/byteorder.h
+++ b/arch/powerpc/include/asm/byteorder.h
@@ -5,7 +5,7 @@
 
 #ifdef __GNUC__
 
-extern __inline__ unsigned ld_le16(const volatile unsigned short *addr)
+static __inline__ unsigned ld_le16(const volatile unsigned short *addr)
 {
 	unsigned val;
 
@@ -13,12 +13,12 @@ extern __inline__ unsigned ld_le16(const volatile unsigned short *addr)
 	return val;
 }
 
-extern __inline__ void st_le16(volatile unsigned short *addr, const unsigned val)
+static __inline__ void st_le16(volatile unsigned short *addr, const unsigned val)
 {
 	__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
 }
 
-extern __inline__ unsigned ld_le32(const volatile unsigned *addr)
+static __inline__ unsigned ld_le32(const volatile unsigned *addr)
 {
 	unsigned val;
 
@@ -26,7 +26,7 @@ extern __inline__ unsigned ld_le32(const volatile unsigned *addr)
 	return val;
 }
 
-extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
+static __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
 {
 	__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
 }
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index a5257e9b62..a54fc468d5 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -163,7 +163,7 @@ static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
  * is actually performed (i.e. the data has come back) before we start
  * executing any following instructions.
  */
-extern inline u8 in_8(const volatile unsigned char __iomem *addr)
+static inline u8 in_8(const volatile unsigned char __iomem *addr)
 {
 	u8 ret;
 
@@ -174,7 +174,7 @@ extern inline u8 in_8(const volatile unsigned char __iomem *addr)
 	return ret;
 }
 
-extern inline void out_8(volatile unsigned char __iomem *addr, u8 val)
+static inline void out_8(volatile unsigned char __iomem *addr, u8 val)
 {
 	__asm__ __volatile__("sync;\n"
 			     "stb%U0%X0 %1,%0;\n"
@@ -182,7 +182,7 @@ extern inline void out_8(volatile unsigned char __iomem *addr, u8 val)
 			     : "r" (val));
 }
 
-extern inline u16 in_le16(const volatile unsigned short __iomem *addr)
+static inline u16 in_le16(const volatile unsigned short __iomem *addr)
 {
 	u16 ret;
 
@@ -193,7 +193,7 @@ extern inline u16 in_le16(const volatile unsigned short __iomem *addr)
 	return ret;
 }
 
-extern inline u16 in_be16(const volatile unsigned short __iomem *addr)
+static inline u16 in_be16(const volatile unsigned short __iomem *addr)
 {
 	u16 ret;
 
@@ -203,18 +203,18 @@ extern inline u16 in_be16(const volatile unsigned short __iomem *addr)
 	return ret;
 }
 
-extern inline void out_le16(volatile unsigned short __iomem *addr, u16 val)
+static inline void out_le16(volatile unsigned short __iomem *addr, u16 val)
 {
 	__asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) :
 			      "r" (val), "r" (addr));
 }
 
-extern inline void out_be16(volatile unsigned short __iomem *addr, u16 val)
+static inline void out_be16(volatile unsigned short __iomem *addr, u16 val)
 {
 	__asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
 }
 
-extern inline u32 in_le32(const volatile unsigned __iomem *addr)
+static inline u32 in_le32(const volatile unsigned __iomem *addr)
 {
 	u32 ret;
 
@@ -225,7 +225,7 @@ extern inline u32 in_le32(const volatile unsigned __iomem *addr)
 	return ret;
 }
 
-extern inline u32 in_be32(const volatile unsigned __iomem *addr)
+static inline u32 in_be32(const volatile unsigned __iomem *addr)
 {
 	u32 ret;
 
@@ -235,13 +235,13 @@ extern inline u32 in_be32(const volatile unsigned __iomem *addr)
 	return ret;
 }
 
-extern inline void out_le32(volatile unsigned __iomem *addr, u32 val)
+static inline void out_le32(volatile unsigned __iomem *addr, u32 val)
 {
 	__asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) :
 			     "r" (val), "r" (addr));
 }
 
-extern inline void out_be32(volatile unsigned __iomem *addr, u32 val)
+static inline void out_be32(volatile unsigned __iomem *addr, u32 val)
 {
 	__asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
 }
diff --git a/arch/powerpc/include/asm/iopin_8260.h b/arch/powerpc/include/asm/iopin_8260.h
index 619f3a8abe..617584d7c7 100644
--- a/arch/powerpc/include/asm/iopin_8260.h
+++ b/arch/powerpc/include/asm/iopin_8260.h
@@ -23,140 +23,140 @@ iopin_t;
 #define IOPIN_PORTC	2
 #define IOPIN_PORTD	3
 
-extern __inline__ void
+static __inline__ void
 iopin_set_high(iopin_t *iopin)
 {
     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
     datp[iopin->port * 8] |= (1 << (31 - iopin->pin));
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_low(iopin_t *iopin)
 {
     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
     datp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_high(iopin_t *iopin)
 {
     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
     return (datp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_low(iopin_t *iopin)
 {
     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
     return ((datp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_out(iopin_t *iopin)
 {
     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
     dirp[iopin->port * 8] |= (1 << (31 - iopin->pin));
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_in(iopin_t *iopin)
 {
     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
     dirp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_out(iopin_t *iopin)
 {
     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
     return (dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_in(iopin_t *iopin)
 {
     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
     return ((dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_odr(iopin_t *iopin)
 {
     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
     odrp[iopin->port * 8] |= (1 << (31 - iopin->pin));
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_act(iopin_t *iopin)
 {
     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
     odrp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_odr(iopin_t *iopin)
 {
     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
     return (odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_act(iopin_t *iopin)
 {
     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
     return ((odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_ded(iopin_t *iopin)
 {
     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
     parp[iopin->port * 8] |= (1 << (31 - iopin->pin));
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_gen(iopin_t *iopin)
 {
     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
     parp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_ded(iopin_t *iopin)
 {
     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
     return (parp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_gen(iopin_t *iopin)
 {
     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
     return ((parp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_opt2(iopin_t *iopin)
 {
     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
     sorp[iopin->port * 8] |= (1 << (31 - iopin->pin));
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_opt1(iopin_t *iopin)
 {
     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
     sorp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_opt2(iopin_t *iopin)
 {
     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
     return (sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_opt1(iopin_t *iopin)
 {
     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
diff --git a/arch/powerpc/include/asm/iopin_8xx.h b/arch/powerpc/include/asm/iopin_8xx.h
index 0123bafcad..8db0fa2a1c 100644
--- a/arch/powerpc/include/asm/iopin_8xx.h
+++ b/arch/powerpc/include/asm/iopin_8xx.h
@@ -26,7 +26,7 @@ typedef struct {
 #define IOPIN_PORTC	2
 #define IOPIN_PORTD	3
 
-extern __inline__ void
+static __inline__ void
 iopin_set_high(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -44,7 +44,7 @@ iopin_set_high(iopin_t *iopin)
 	}
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_low(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -62,7 +62,7 @@ iopin_set_low(iopin_t *iopin)
 	}
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_high(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -81,7 +81,7 @@ iopin_is_high(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_low(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -100,7 +100,7 @@ iopin_is_low(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_out(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -118,7 +118,7 @@ iopin_set_out(iopin_t *iopin)
 	}
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_in(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -136,7 +136,7 @@ iopin_set_in(iopin_t *iopin)
 	}
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_out(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -155,7 +155,7 @@ iopin_is_out(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_in(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -174,7 +174,7 @@ iopin_is_in(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_odr(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -186,7 +186,7 @@ iopin_set_odr(iopin_t *iopin)
 	}
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_act(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -198,7 +198,7 @@ iopin_set_act(iopin_t *iopin)
 	}
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_odr(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -211,7 +211,7 @@ iopin_is_odr(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_act(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -224,7 +224,7 @@ iopin_is_act(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_ded(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -242,7 +242,7 @@ iopin_set_ded(iopin_t *iopin)
 	}
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_gen(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -260,7 +260,7 @@ iopin_set_gen(iopin_t *iopin)
 	}
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_ded(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -279,7 +279,7 @@ iopin_is_ded(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_gen(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTA) {
@@ -298,7 +298,7 @@ iopin_is_gen(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_opt2(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {
@@ -307,7 +307,7 @@ iopin_set_opt2(iopin_t *iopin)
 	}
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_opt1(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {
@@ -316,7 +316,7 @@ iopin_set_opt1(iopin_t *iopin)
 	}
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_opt2(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {
@@ -326,7 +326,7 @@ iopin_is_opt2(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_opt1(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {
@@ -336,7 +336,7 @@ iopin_is_opt1(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_falledge(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {
@@ -345,7 +345,7 @@ iopin_set_falledge(iopin_t *iopin)
 	}
 }
 
-extern __inline__ void
+static __inline__ void
 iopin_set_anyedge(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {
@@ -354,7 +354,7 @@ iopin_set_anyedge(iopin_t *iopin)
 	}
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_falledge(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {
@@ -364,7 +364,7 @@ iopin_is_falledge(iopin_t *iopin)
 	return 0;
 }
 
-extern __inline__ uint
+static __inline__ uint
 iopin_is_anyedge(iopin_t *iopin)
 {
 	if (iopin->port == IOPIN_PORTC) {