On Tue, Nov 6, 2018 at 3:42 AM Bo YU <tsu.y...@gmail.com> wrote:
>
> Fix warning form checkpatch, use pr_warn replace KERN_WARNING
>
> Signed-off-by: Bo YU <tsu.y...@gmail.com>
First off, IMO, you should not change the existing code just in order
to make checkpatch happy about it. That alone is not a good enough
reason for modifying it.
If the checkpatch warning indicates an issue like broken white space
(and I mean really broken and not lines longer than 80 chars etc),
then that may be a reason to modify the existing code, depending.
> ---
> changes in v2:
> According to Joe's suggestion,drop newline from msg, otherwise
> it can be unterminated with newline.
> ---
> lib/kobject_uevent.c | 11 ++++++-----
> 1 file changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
> index 63d0816ab23b..1837765ebf01 100644
> --- a/lib/kobject_uevent.c
> +++ b/lib/kobject_uevent.c
> @@ -195,12 +195,12 @@ int kobject_synth_uevent(struct kobject *kobj, const
> char *buf, size_t count)
> enum kobject_action action;
> const char *action_args;
> struct kobj_uevent_env *env;
> - const char *msg = NULL, *devpath;
> + const char *msg = NULL;
> int r;
>
> r = kobject_action_type(buf, count, &action, &action_args);
> if (r) {
> - msg = "unknown uevent action string\n";
> + msg = "unknown uevent action string";
> goto out;
> }
>
> @@ -212,7 +212,7 @@ int kobject_synth_uevent(struct kobject *kobj, const char
> *buf, size_t count)
> r = kobject_action_args(action_args,
> count - (action_args - buf), &env);
> if (r == -EINVAL) {
> - msg = "incorrect uevent action arguments\n";
> + msg = "incorrect uevent action arguments";
Second, this change is not what the changelog of your patch is talking about.
> goto out;
> }
>
> @@ -223,8 +223,9 @@ int kobject_synth_uevent(struct kobject *kobj, const char
> *buf, size_t count)
> kfree(env);
> out:
> if (r) {
> - devpath = kobject_get_path(kobj, GFP_KERNEL);
> - printk(KERN_WARNING "synth uevent: %s: %s",
> + char *devpath = kobject_get_path(kobj, GFP_KERNEL);
> +
> + pr_warn("synth uevent: %s: %s\n",
> devpath ?: "unknown device",
> msg ?: "failed to send uevent");
> kfree(devpath);
> --
> 2.11.0
>
