linux-kernel - Re: [PATCH 1/6] dyndbg: recode for stronger precondition

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Date:   Thu, 30 Sep 2021 08:06:42 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jim Cromie <jim.cromie@...il.com>
Cc:     jbaron@...mai.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] dyndbg: recode for stronger precondition

On Wed, Sep 29, 2021 at 12:37:30PM -0600, Jim Cromie wrote:
> The table of struct _ddebugs, due to its construction by the linker,
> has an important property; namely that its "equal" fields have actual
> ptr-equality, not just strcmp-equality.  Lets recognize that truth in
> dynamic_debug_init(), while slicing the builtin table into a
> per-module list.
> ---
>  lib/dynamic_debug.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
> index cb5abb42c16a..817a87e9c37f 100644
> --- a/lib/dynamic_debug.c
> +++ b/lib/dynamic_debug.c
> @@ -1101,7 +1101,7 @@ static int __init dynamic_debug_init(void)
>  	iter_start = iter;
>  	for (; iter < __stop___dyndbg; iter++) {
>  		entries++;
> -		if (strcmp(modname, iter->modname)) {
> +		if (modname != iter->modname) {
>  			modct++;
>  			ret = ddebug_add_module(iter_start, n, modname);
>  			if (ret)
> -- 
> 2.31.1
> 

Always run checkpatch on a patch so you do not get a grumpy kernel
developer telling you to run checkpatch on your patch :(

I can't take this for the obvious reasons here...

thanks,

greg k-h