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authorTobias Klauser <tklauser@distanz.ch>2020-09-07 12:32:07 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-09-18 20:15:56 +0300
commit54fa9ba564b717fc2cf689427e195c360315999d (patch)
tree7aedf9ae98a1c914056c40129d8a1a2e23f86410 /include/linux
parent795d6379a47bcbb88bd95a69920e4acc52849f88 (diff)
downloadlinux-54fa9ba564b717fc2cf689427e195c360315999d.tar.xz
ftrace: Let ftrace_enable_sysctl take a kernel pointer buffer
Commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") changed ctl_table.proc_handler to take a kernel pointer. Adjust the signature of ftrace_enable_sysctl to match ctl_table.proc_handler which fixes the following sparse warning: kernel/trace/ftrace.c:7544:43: warning: incorrect type in argument 3 (different address spaces) kernel/trace/ftrace.c:7544:43: expected void * kernel/trace/ftrace.c:7544:43: got void [noderef] __user *buffer Link: https://lkml.kernel.org/r/20200907093207.13540-1-tklauser@distanz.ch Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/ftrace.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index ce2c06f72e86..e5c2d5cc6e6a 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -85,8 +85,7 @@ static inline int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *val
extern int ftrace_enabled;
extern int
ftrace_enable_sysctl(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
+ void *buffer, size_t *lenp, loff_t *ppos);
struct ftrace_ops;