Re: [PATCH v2 1/6] net-PPP: Replacement of a printk() call by pr_warn() in mppe_rekey()

Julia Lawall
2014-12-05T07:21:20Z

On Thu, 4 Dec 2014, Joe Perches wrote:

> On Thu, 2014-12-04 at 23:10 +0100, SF Markus Elfring wrote:
> > The mppe_rekey() function contained a few update candidates.
> > * Curly brackets were still used around a single function call "printk".
> > * Unwanted space characters
> >
> > Let us improve these implementation details according to the current Linux
> > coding style convention.
>
> trivia:
>
> > diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c
> []
> > @@ -172,9 +172,8 @@ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key)
> > setup_sg(sg_in, state->sha1_digest, state->keylen);
> > setup_sg(sg_out, state->session_key, state->keylen);
> > if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in,
> > - state->keylen) != 0) {
> > - printk(KERN_WARNING "mppe_rekey: cipher_encrypt failed\n");
> > - }
> > + state->keylen) != 0)
> > + pr_warn("mppe_rekey: cipher_encrypt failed\n");
>
> It's generally nicer to replace embedded function names
> with "%s: ", __func__
>
> pr_warn("%s: cipher_encrypt failed\n", __func__);

Doing so may potentially allow some strings to be shared, thus saving a
little space. Perhaps not in this case, though.

julia