5.15-stable review patch. If anyone has any objections, please let me know.
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From: ye xingchen ye.xingchen@zte.com.cn
[ Upstream commit 72ee45fd46d0d3578c4e6046f66fae3218543ce3 ]
Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space.
Signed-off-by: ye xingchen ye.xingchen@zte.com.cn Reviewed-by: Sergey Senozhatsky senozhatsky@chromium.org Acked-by: Namjae Jeon linkinjeon@kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ksmbd/server.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-)
--- a/fs/ksmbd/server.c +++ b/fs/ksmbd/server.c @@ -439,11 +439,9 @@ static ssize_t stats_show(struct class * "reset", "shutdown" }; - - ssize_t sz = scnprintf(buf, PAGE_SIZE, "%d %s %d %lu\n", stats_version, - state[server_conf.state], server_conf.tcp_port, - server_conf.ipc_last_active / HZ); - return sz; + return sysfs_emit(buf, "%d %s %d %lu\n", stats_version, + state[server_conf.state], server_conf.tcp_port, + server_conf.ipc_last_active / HZ); }
static ssize_t kill_server_store(struct class *class, @@ -475,19 +473,13 @@ static ssize_t debug_show(struct class *
for (i = 0; i < ARRAY_SIZE(debug_type_strings); i++) { if ((ksmbd_debug_types >> i) & 1) { - pos = scnprintf(buf + sz, - PAGE_SIZE - sz, - "[%s] ", - debug_type_strings[i]); + pos = sysfs_emit_at(buf, sz, "[%s] ", debug_type_strings[i]); } else { - pos = scnprintf(buf + sz, - PAGE_SIZE - sz, - "%s ", - debug_type_strings[i]); + pos = sysfs_emit_at(buf, sz, "%s ", debug_type_strings[i]); } sz += pos; } - sz += scnprintf(buf + sz, PAGE_SIZE - sz, "\n"); + sz += sysfs_emit_at(buf, sz, "\n"); return sz; }