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authorHeiko Carstens <heiko.carstens@de.ibm.com>2013-09-06 19:16:14 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2013-09-07 11:58:07 +0200
commit5eb8ae503e13c6eee3545e3e3be986db000ae8c2 (patch)
tree3afd3870cd35c5ffdf54481732cc6253a189f2a7 /arch
parent63df41d663fc27e96571bfea86d3f9ee81289e07 (diff)
downloadlinux-5eb8ae503e13c6eee3545e3e3be986db000ae8c2.tar.bz2
s390/ftrace: avoid pointer arithmetics with function pointers
Pointer arithmetics with function pointers is not really defined, but seems to do the right thing. Let's cast to a void pointer to have a defined behaviour, at least when using gcc. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/ftrace.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 4c8072068125..1014ad5f7693 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -178,7 +178,7 @@ int ftrace_enable_ftrace_graph_caller(void)
offset = ((void *) prepare_ftrace_return -
(void *) ftrace_graph_caller) / 2;
- return probe_kernel_write(ftrace_graph_caller + 2,
+ return probe_kernel_write((void *) ftrace_graph_caller + 2,
&offset, sizeof(offset));
}
@@ -186,7 +186,7 @@ int ftrace_disable_ftrace_graph_caller(void)
{
static unsigned short offset = 0x0002;
- return probe_kernel_write(ftrace_graph_caller + 2,
+ return probe_kernel_write((void *) ftrace_graph_caller + 2,
&offset, sizeof(offset));
}