powerpc: Remove ancient DEBUG_SIG code

We have some compile-time disabled debug code in signal_xx.c. It's from
some ancient time BG, almost certainly part of the original port, given
the very similar code on other arches.

The show_unhandled_signal logic, added in d0c3d534a438 (2.6.24) is
cleaner and prints more useful information, so drop the debug code.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 4e47db6..1bc5a17 100644 (file)
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -54,7 +54,6 @@
 
 #include "signal.h"
 
-#undef DEBUG_SIG
 
 #ifdef CONFIG_PPC64
 #define sys_rt_sigreturn       compat_sys_rt_sigreturn
@@ -1063,10 +1062,6 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
        return 1;
 
 badframe:
-#ifdef DEBUG_SIG
-       printk("badframe in handle_rt_signal, regs=%p frame=%p newsp=%lx\n",
-              regs, frame, newsp);
-#endif
        if (show_unhandled_signals)
                printk_ratelimited(KERN_INFO
                                   "%s[%d]: bad frame in handle_rt_signal32: "
@@ -1484,10 +1479,6 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
        return 1;
 
 badframe:
-#ifdef DEBUG_SIG
-       printk("badframe in handle_signal, regs=%p frame=%p newsp=%lx\n",
-              regs, frame, newsp);
-#endif
        if (show_unhandled_signals)
                printk_ratelimited(KERN_INFO
                                   "%s[%d]: bad frame in handle_signal32: "

diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index d501dc4..97c1e4b 100644 (file)
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -38,7 +38,6 @@
 
 #include "signal.h"
 
-#define DEBUG_SIG 0
 
 #define GP_REGS_SIZE   min(sizeof(elf_gregset_t), sizeof(struct pt_regs))
 #define FP_REGS_SIZE   sizeof(elf_fpregset_t)
@@ -700,10 +699,6 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5,
        return 0;
 
 badframe:
-#if DEBUG_SIG
-       printk("badframe in sys_rt_sigreturn, regs=%p uc=%p &uc->uc_mcontext=%p\n",
-              regs, uc, &uc->uc_mcontext);
-#endif
        if (show_unhandled_signals)
                printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,
                                   current->comm, current->pid, "rt_sigreturn",
@@ -809,10 +804,6 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
        return 1;
 
 badframe:
-#if DEBUG_SIG
-       printk("badframe in setup_rt_frame, regs=%p frame=%p newsp=%lx\n",
-              regs, frame, newsp);
-#endif
        if (show_unhandled_signals)
                printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,
                                   current->comm, current->pid, "setup_rt_frame",