diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-08-06 18:13:54 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-08-06 18:13:54 +0100 |
| commit | 11e4afb49b7fa1fc8e1ffd850c1806dd86a08204 (patch) | |
| tree | 9e57efcb106ae912f7bec718feb3f8ec607559bb /arch/microblaze/kernel/ftrace.c | |
| parent | 162500b3a3ff39d941d29db49b41a16667ae44f0 (diff) | |
| parent | 9b2a606d3898fcb2eedb6faded3bb37549590ac4 (diff) | |
| download | blackbird-op-linux-11e4afb49b7fa1fc8e1ffd850c1806dd86a08204.tar.gz blackbird-op-linux-11e4afb49b7fa1fc8e1ffd850c1806dd86a08204.zip | |
Merge branches 'gemini' and 'misc' into devel
Diffstat (limited to 'arch/microblaze/kernel/ftrace.c')
| -rw-r--r-- | arch/microblaze/kernel/ftrace.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/arch/microblaze/kernel/ftrace.c b/arch/microblaze/kernel/ftrace.c index 388b31ca65a1..515feb404555 100644 --- a/arch/microblaze/kernel/ftrace.c +++ b/arch/microblaze/kernel/ftrace.c @@ -151,13 +151,10 @@ int ftrace_make_nop(struct module *mod, return ret; } -static int ret_addr; /* initialized as 0 by default */ - /* I believe that first is called ftrace_make_nop before this function */ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) { int ret; - ret_addr = addr; /* saving where the barrier jump is */ pr_debug("%s: addr:0x%x, rec->ip: 0x%x, imm:0x%x\n", __func__, (unsigned int)addr, (unsigned int)rec->ip, imm); ret = ftrace_modify_code(rec->ip, imm); @@ -194,12 +191,9 @@ int ftrace_update_ftrace_func(ftrace_func_t func) ret = ftrace_modify_code(ip, upper); ret += ftrace_modify_code(ip + 4, lower); - /* We just need to remove the rtsd r15, 8 by NOP */ - BUG_ON(!ret_addr); - if (ret_addr) - ret += ftrace_modify_code(ret_addr, MICROBLAZE_NOP); - else - ret = 1; /* fault */ + /* We just need to replace the rtsd r15, 8 with NOP */ + ret += ftrace_modify_code((unsigned long)&ftrace_caller, + MICROBLAZE_NOP); /* All changes are done - lets do caches consistent */ flush_icache(); |
