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| author | Michael Ellerman <michael@ellerman.id.au> | 2009-05-28 19:33:34 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-02 10:36:32 +1000 |
| commit | 4a9e3f8e94d6740fbd3f149f2aa4caa82a6427ed (patch) | |
| tree | 6c1e3f51142a30b4efc52ca9db3447458b6ed190 /arch/powerpc/kernel/ftrace.c | |
| parent | f03cdb3a66901bb301b9d06ac0690de00d99ad39 (diff) | |
| download | lwn-4a9e3f8e94d6740fbd3f149f2aa4caa82a6427ed.tar.gz lwn-4a9e3f8e94d6740fbd3f149f2aa4caa82a6427ed.zip | |
powerpc/ftrace: Use ppc_function_entry() instead of GET_ADDR
Use ppc_function_entry() from code-patching.h.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/ftrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ftrace.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c index 2d182f119d1d..f7eadf5ddec3 100644 --- a/arch/powerpc/kernel/ftrace.c +++ b/arch/powerpc/kernel/ftrace.c @@ -23,12 +23,6 @@ #include <asm/code-patching.h> #include <asm/ftrace.h> -#ifdef CONFIG_PPC32 -# define GET_ADDR(addr) addr -#else -/* PowerPC64's functions are data that points to the functions */ -# define GET_ADDR(addr) (*(unsigned long *)addr) -#endif #ifdef CONFIG_DYNAMIC_FTRACE static unsigned int ftrace_nop_replace(void) @@ -41,7 +35,7 @@ ftrace_call_replace(unsigned long ip, unsigned long addr, int link) { unsigned int op; - addr = GET_ADDR(addr); + addr = ppc_function_entry((void *)addr); /* if (link) set op to 'bl' else 'b' */ op = create_branch((unsigned int *)ip, addr, link ? 1 : 0); @@ -197,7 +191,7 @@ __ftrace_make_nop(struct module *mod, ptr = ((unsigned long)jmp[0] << 32) + jmp[1]; /* This should match what was called */ - if (ptr != GET_ADDR(addr)) { + if (ptr != ppc_function_entry((void *)addr)) { printk(KERN_ERR "addr does not match %lx\n", ptr); return -EINVAL; } @@ -570,7 +564,7 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr) return_hooker = (unsigned long)&mod_return_to_handler; #endif - return_hooker = GET_ADDR(return_hooker); + return_hooker = ppc_function_entry((void *)return_hooker); /* * Protect against fault, even if it shouldn't |