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| author | Rakib Mullick <rakib.mullick@gmail.com> | 2011-05-12 23:33:40 +0600 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2011-05-25 19:56:26 -0400 |
| commit | 0d098a7d1e39553e8a3f638b923551edec4868a7 (patch) | |
| tree | 15f4b9ab0338a23b8a005d00e6c2bb3e05ffbe19 /arch | |
| parent | f29c50419c8d1998edd759f1990c4243a248f469 (diff) | |
| download | linux-stable-0d098a7d1e39553e8a3f638b923551edec4868a7.tar.gz linux-stable-0d098a7d1e39553e8a3f638b923551edec4868a7.tar.bz2 linux-stable-0d098a7d1e39553e8a3f638b923551edec4868a7.zip | |
x86/ftrace: Fix compiler warning in ftrace.c
Due to commit dc326fca2b64 (x86, cpu: Clean up and unify the NOP selection infrastructure), we get the following warning:
arch/x86/kernel/ftrace.c: In function ‘ftrace_make_nop’:
arch/x86/kernel/ftrace.c:308:6: warning: assignment discards qualifiers from pointer target type
arch/x86/kernel/ftrace.c: In function ‘ftrace_make_call’:
arch/x86/kernel/ftrace.c:318:6: warning: assignment discards qualifiers from pointer target type
ftrace_nop_replace() now returns const unsigned char *, so change its associated function/variable to its compatible type to keep compiler clam.
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Link: http://lkml.kernel.org/r/1305221620.7986.4.camel@localhost.localdomain
[ updated for change of const void *src in probe_kernel_write() ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/ftrace.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index 0ba15a6cc57e..c9a281f272fd 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -123,7 +123,7 @@ static unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr) static atomic_t nmi_running = ATOMIC_INIT(0); static int mod_code_status; /* holds return value of text write */ static void *mod_code_ip; /* holds the IP to write to */ -static void *mod_code_newcode; /* holds the text to write to the IP */ +static const void *mod_code_newcode; /* holds the text to write to the IP */ static unsigned nmi_wait_count; static atomic_t nmi_update_count = ATOMIC_INIT(0); @@ -225,7 +225,7 @@ within(unsigned long addr, unsigned long start, unsigned long end) } static int -do_ftrace_mod_code(unsigned long ip, void *new_code) +do_ftrace_mod_code(unsigned long ip, const void *new_code) { /* * On x86_64, kernel text mappings are mapped read-only with @@ -266,8 +266,8 @@ static const unsigned char *ftrace_nop_replace(void) } static int -ftrace_modify_code(unsigned long ip, unsigned char *old_code, - unsigned char *new_code) +ftrace_modify_code(unsigned long ip, unsigned const char *old_code, + unsigned const char *new_code) { unsigned char replaced[MCOUNT_INSN_SIZE]; @@ -301,7 +301,7 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code, int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, unsigned long addr) { - unsigned char *new, *old; + unsigned const char *new, *old; unsigned long ip = rec->ip; old = ftrace_call_replace(ip, addr); @@ -312,7 +312,7 @@ int ftrace_make_nop(struct module *mod, int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) { - unsigned char *new, *old; + unsigned const char *new, *old; unsigned long ip = rec->ip; old = ftrace_nop_replace(); |