MIPS: Cleanup signal code initialization

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/709/

diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 8a3ef247659a79daefde386445eb4c7d8b6d7442..7fcef8ef3fab717e7fdb335c2e05315892b85a86 100644 (file)
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -28,15 +28,7 @@
 struct sigcontext;
 struct sigcontext32;
 
-extern asmlinkage int (*save_fp_context)(struct sigcontext __user *sc);
-extern asmlinkage int (*restore_fp_context)(struct sigcontext __user *sc);
-
-extern asmlinkage int (*save_fp_context32)(struct sigcontext32 __user *sc);
-extern asmlinkage int (*restore_fp_context32)(struct sigcontext32 __user *sc);
-
 extern void fpu_emulator_init_fpu(void);
-extern int fpu_emulator_save_context(struct sigcontext __user *sc);
-extern int fpu_emulator_restore_context(struct sigcontext __user *sc);
 extern void _init_fpu(void);
 extern void _save_fp(struct task_struct *);
 extern void _restore_fp(struct task_struct *);

diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 6254041b942f9a9b56295024a0fd1320fb2da6ae..d0c68b5d717bce3fde6979d2eeee5e5ac6ea7094 100644 (file)
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -35,6 +35,15 @@
 
 #include "signal-common.h"
 
+static int (*save_fp_context)(struct sigcontext __user *sc);
+static int (*restore_fp_context)(struct sigcontext __user *sc);
+
+extern asmlinkage int _save_fp_context(struct sigcontext __user *sc);
+extern asmlinkage int _restore_fp_context(struct sigcontext __user *sc);
+
+extern asmlinkage int fpu_emulator_save_context(struct sigcontext __user *sc);
+extern asmlinkage int fpu_emulator_restore_context(struct sigcontext __user *sc);
+
 /*
  * Horribly complicated - with the bloody RM9000 workarounds enabled
  * the signal trampolines is moving to the end of the structure so we can
@@ -709,3 +718,40 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
                        key_replace_session_keyring();
        }
 }
+
+#ifdef CONFIG_SMP
+static int smp_save_fp_context(struct sigcontext __user *sc)
+{
+       return raw_cpu_has_fpu
+              ? _save_fp_context(sc)
+              : fpu_emulator_save_context(sc);
+}
+
+static int smp_restore_fp_context(struct sigcontext __user *sc)
+{
+       return raw_cpu_has_fpu
+              ? _restore_fp_context(sc)
+              : fpu_emulator_restore_context(sc);
+}
+#endif
+
+static int signal_setup(void)
+{
+#ifdef CONFIG_SMP
+       /* For now just do the cpu_has_fpu check when the functions are invoked */
+       save_fp_context = smp_save_fp_context;
+       restore_fp_context = smp_restore_fp_context;
+#else
+       if (cpu_has_fpu) {
+               save_fp_context = _save_fp_context;
+               restore_fp_context = _restore_fp_context;
+       } else {
+               save_fp_context = fpu_emulator_save_context;
+               restore_fp_context = fpu_emulator_restore_context;
+       }
+#endif
+
+       return 0;
+}
+
+arch_initcall(signal_setup);

diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 2e74075ac0cadcc7c64b92fa98f3a0d7794ae479..03abaf048f09b3257ad7240378a53e6ddcc5588d 100644 (file)
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -35,6 +35,15 @@
 
 #include "signal-common.h"
 
+static int (*save_fp_context32)(struct sigcontext32 __user *sc);
+static int (*restore_fp_context32)(struct sigcontext32 __user *sc);
+
+extern asmlinkage int _save_fp_context32(struct sigcontext32 __user *sc);
+extern asmlinkage int _restore_fp_context32(struct sigcontext32 __user *sc);
+
+extern asmlinkage int fpu_emulator_save_context32(struct sigcontext32 __user *sc);
+extern asmlinkage int fpu_emulator_restore_context32(struct sigcontext32 __user *sc);
+
 /*
  * Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
  */
@@ -828,3 +837,18 @@ SYSCALL_DEFINE5(32_waitid, int, which, compat_pid_t, pid,
        info.si_code |= __SI_CHLD;
        return copy_siginfo_to_user32(uinfo, &info);
 }
+
+static int signal32_init(void)
+{
+       if (cpu_has_fpu) {
+               save_fp_context32 = _save_fp_context32;
+               restore_fp_context32 = _restore_fp_context32;
+       } else {
+               save_fp_context32 = fpu_emulator_save_context32;
+               restore_fp_context32 = fpu_emulator_restore_context32;
+       }
+
+       return 0;
+}
+
+arch_initcall(signal32_init);

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 9fe21fb653051277bbaab61aee8a56fec07487ec..308e434608647a2b1f1df35a8486bb9c3275f25e 100644 (file)
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1395,77 +1395,6 @@ void *set_vi_handler(int n, vi_handler_t addr)
        return set_vi_srs_handler(n, addr, 0);
 }
 
-/*
- * This is used by native signal handling
- */
-asmlinkage int (*save_fp_context)(struct sigcontext __user *sc);
-asmlinkage int (*restore_fp_context)(struct sigcontext __user *sc);
-
-extern asmlinkage int _save_fp_context(struct sigcontext __user *sc);
-extern asmlinkage int _restore_fp_context(struct sigcontext __user *sc);
-
-extern asmlinkage int fpu_emulator_save_context(struct sigcontext __user *sc);
-extern asmlinkage int fpu_emulator_restore_context(struct sigcontext __user *sc);
-
-#ifdef CONFIG_SMP
-static int smp_save_fp_context(struct sigcontext __user *sc)
-{
-       return raw_cpu_has_fpu
-              ? _save_fp_context(sc)
-              : fpu_emulator_save_context(sc);
-}
-
-static int smp_restore_fp_context(struct sigcontext __user *sc)
-{
-       return raw_cpu_has_fpu
-              ? _restore_fp_context(sc)
-              : fpu_emulator_restore_context(sc);
-}
-#endif
-
-static inline void signal_init(void)
-{
-#ifdef CONFIG_SMP
-       /* For now just do the cpu_has_fpu check when the functions are invoked */
-       save_fp_context = smp_save_fp_context;
-       restore_fp_context = smp_restore_fp_context;
-#else
-       if (cpu_has_fpu) {
-               save_fp_context = _save_fp_context;
-               restore_fp_context = _restore_fp_context;
-       } else {
-               save_fp_context = fpu_emulator_save_context;
-               restore_fp_context = fpu_emulator_restore_context;
-       }
-#endif
-}
-
-#ifdef CONFIG_MIPS32_COMPAT
-
-/*
- * This is used by 32-bit signal stuff on the 64-bit kernel
- */
-asmlinkage int (*save_fp_context32)(struct sigcontext32 __user *sc);
-asmlinkage int (*restore_fp_context32)(struct sigcontext32 __user *sc);
-
-extern asmlinkage int _save_fp_context32(struct sigcontext32 __user *sc);
-extern asmlinkage int _restore_fp_context32(struct sigcontext32 __user *sc);
-
-extern asmlinkage int fpu_emulator_save_context32(struct sigcontext32 __user *sc);
-extern asmlinkage int fpu_emulator_restore_context32(struct sigcontext32 __user *sc);
-
-static inline void signal32_init(void)
-{
-       if (cpu_has_fpu) {
-               save_fp_context32 = _save_fp_context32;
-               restore_fp_context32 = _restore_fp_context32;
-       } else {
-               save_fp_context32 = fpu_emulator_save_context32;
-               restore_fp_context32 = fpu_emulator_restore_context32;
-       }
-}
-#endif
-
 extern void cpu_cache_init(void);
 extern void tlb_init(void);
 extern void flush_tlb_handlers(void);
@@ -1779,11 +1708,6 @@ void __init trap_init(void)
        else
                memcpy((void *)(ebase + 0x080), &except_vec3_generic, 0x80);
 
-       signal_init();
-#ifdef CONFIG_MIPS32_COMPAT
-       signal32_init();
-#endif
-
        local_flush_icache_range(ebase, ebase + 0x400);
        flush_tlb_handlers();