[PATCH 12/20] mips: move cache declarations into header

Arnd Bergmann
2023-12-04T11:59:06Z

Some of the cache functions are declared only for their callers, e.g.

arch/mips/mm/c-r3k.c:28:15: error: no previous prototype for 'r3k_cache_size' [-Werror=missing-prototypes]
arch/mips/mm/c-r3k.c:63:15: error: no previous prototype for 'r3k_cache_lsize' [-Werror=missing-prototypes]
arch/mips/mm/c-r4k.c:1703:6: error: no previous prototype for 'r4k_cache_init' [-Werror=missing-prototypes]
arch/mips/mm/sc-mips.c:255:5: error: no previous prototype for 'mips_sc_init' [-Werror=missing-prototypes]

Move all the declarations to asm/cache.h and asm/r4kcache.h where they
can be seen by the function definitions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/mips/include/asm/cache.h | 6 ++++++
arch/mips/include/asm/r4kcache.h | 4 ++++
arch/mips/kernel/cpu-probe.c | 1 -
arch/mips/kernel/cpu-r3k-probe.c | 1 -
arch/mips/mm/c-r4k.c | 4 ----
arch/mips/mm/cache.c | 6 ------
6 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index 3424a7908c0f..8b08db3fb17a 100644
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -17,5 +17,11 @@
#define __read_mostly __section(".data..read_mostly")

extern void cache_noop(void);
+extern void r3k_cache_init(void);
+extern unsigned long r3k_cache_size(unsigned long);
+extern unsigned long r3k_cache_lsize(unsigned long);
+extern void r4k_cache_init(void);
+extern void octeon_cache_init(void);
+extern void au1x00_fixup_config_od(void);

#endif /* _ASM_CACHE_H */
diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h
index 431a1c9d53fc..da1cd1bbdbc5 100644
--- a/arch/mips/include/asm/r4kcache.h
+++ b/arch/mips/include/asm/r4kcache.h
@@ -24,6 +24,10 @@
#include <asm/mmzone.h>
#include <asm/unroll.h>

+extern void r5k_sc_init(void);
+extern void rm7k_sc_init(void);
+extern int mips_sc_init(void);
+
extern void (*r4k_blast_dcache)(void);
extern void (*r4k_blast_icache)(void);

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index b406d8bfb15a..de7460c3a72e 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -179,7 +179,6 @@ void __init check_bugs32(void)
static inline int cpu_has_confreg(void)
{
#ifdef CONFIG_CPU_R3000
- extern unsigned long r3k_cache_size(unsigned long);
unsigned long size1, size2;
unsigned long cfg = read_c0_conf();

diff --git a/arch/mips/kernel/cpu-r3k-probe.c b/arch/mips/kernel/cpu-r3k-probe.c
index be93469c0e0e..0c826f729f75 100644
--- a/arch/mips/kernel/cpu-r3k-probe.c
+++ b/arch/mips/kernel/cpu-r3k-probe.c
@@ -42,7 +42,6 @@ void __init check_bugs32(void)
static inline int cpu_has_confreg(void)
{
#ifdef CONFIG_CPU_R3000
- extern unsigned long r3k_cache_size(unsigned long);
unsigned long size1, size2;
unsigned long cfg = read_c0_conf();

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 0619e5296ff3..b45bf026ee55 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1485,10 +1485,6 @@ static void loongson3_sc_init(void)
return;
}

-extern int r5k_sc_init(void);
-extern int rm7k_sc_init(void);
-extern int mips_sc_init(void);
-
static void setup_scache(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 7f830634dbe7..e5d19f4a38ba 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -206,19 +206,13 @@ static inline void setup_protection_map(void)
void cpu_cache_init(void)
{
if (cpu_has_3k_cache) {
- extern void __weak r3k_cache_init(void);
-
r3k_cache_init();
}
if (cpu_has_4k_cache) {
- extern void __weak r4k_cache_init(void);
-
r4k_cache_init();
}

if (cpu_has_octeon_cache) {
- extern void __weak octeon_cache_init(void);
-
octeon_cache_init();
}

--
2.39.2