From 5eb8ae503e13c6eee3545e3e3be986db000ae8c2 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 6 Sep 2013 19:16:14 +0200 Subject: 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 --- arch/s390/kernel/ftrace.c | 4 ++-- 1 file 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)); } -- cgit v1.2.1