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bpf...d_path(): constify path argument

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Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2025-07-06 18:39:04 -04:00
parent 63dbfb077c
commit 1b8abbb121
3 changed files with 3 additions and 3 deletions
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2
fs/bpf_fs_kfuncs.c
View file

@ -79,7 +79,7 @@ __bpf_kfunc void bpf_put_file(struct file *file)
* pathname in *buf*, including the NUL termination character. On error, a
* negative integer is returned.
*/
__bpf_kfunc int bpf_path_d_path(struct path *path, char *buf, size_t buf__sz)
__bpf_kfunc int bpf_path_d_path(const struct path *path, char *buf, size_t buf__sz)
{
int len;
char *ret;

2
kernel/trace/bpf_trace.c
View file

@ -900,7 +900,7 @@ const struct bpf_func_proto bpf_send_signal_thread_proto = {
.arg1_type = ARG_ANYTHING,
};
BPF_CALL_3(bpf_d_path, struct path *, path, char *, buf, u32, sz)
BPF_CALL_3(bpf_d_path, const struct path *, path, char *, buf, u32, sz)
{
struct path copy;
long len;

2
tools/testing/selftests/bpf/bpf_experimental.h
View file

@ -219,7 +219,7 @@ extern void bpf_put_file(struct file *file) __ksym;
* including the NULL termination character, stored in the supplied
* buffer. On error, a negative integer is returned.
*/
extern int bpf_path_d_path(struct path *path, char *buf, size_t buf__sz) __ksym;
extern int bpf_path_d_path(const struct path *path, char *buf, size_t buf__sz) __ksym;
/* This macro must be used to mark the exception callback corresponding to the
* main program. For example: