Re: [PATCH] make checkpatch warn about access to current->comm

[KOSAKI Motohiro]

> +# direct access to current task name is racy, suggest accessor instead.
> +		if ($line =~ /current\-\>comm/) {
> +			WARN("direct access to current->comm is racy, use get_task_comm() instead.\n" . $herecurr);
> +		}
> +
>  # use of NR_CPUS is usually wrong
>  # ignore definitions of NR_CPUS and usage to define arrays as likely right
>  		if ($line =~ /\bNR_CPUS\b/ &&


./scripts/checkpatch --file fs/exec.c
------------------------------------------------------
WARNING: direct access to current->comm is racy, use get_task_comm() instead.
#952: FILE: exec.c:952:
+       char tcomm[sizeof(current->comm)];

(snip)

WARNING: direct access to current->comm is racy, use get_task_comm() instead.
#1459: FILE: exec.c:1459:
+                                             "%s", current->comm);

(snip)

WARNING: direct access to current->comm is racy, use get_task_comm() instead.
#1788: FILE: exec.c:1788:
+               if (!strcmp(delimit, current->comm)) {

---------------------------

I think "char tcomm[sizeof(current->comm)];" is valid code.
if checkpatch.pl don't warn "sizeof(current->comm)", I'm glad.



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/