Re: [PATCH] net: Avoid strcmp current->comm with warncomm when warned >= 5

From: David Miller
Date: Tue Aug 18 2020 - 15:45:32 EST


From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Date: Tue, 18 Aug 2020 07:41:32 -0400

> @@ -417,7 +417,7 @@ static void sock_warn_obsolete_bsdism(const char *name)
> {
> static int warned;
> static char warncomm[TASK_COMM_LEN];
> - if (strcmp(warncomm, current->comm) && warned < 5) {
> + if (warned < 5 && strcmp(warncomm, current->comm)) {
> strcpy(warncomm, current->comm);
> pr_warn("process `%s' is using obsolete %s SO_BSDCOMPAT\n",
> warncomm, name);

We've been warning about SO_BSDCOMPAT usage for almost 20 years, I think
we can remove this code completely now.