linux-kernel - Re: [RESEND][PATCH] mtd: refactor call to request

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Message-ID: <87hag3cdp0.fsf@rustcorp.com.au>
Date:	Wed, 10 Jul 2013 12:40:35 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Kees Cook <keescook@...omium.org>, akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org,
	David Woodhouse <dwmw2@...radead.org>,
	James Hogan <james.hogan@...tec.com>,
	linux-mtd@...ts.infradead.org
Subject: Re: [RESEND][PATCH] mtd: refactor call to request_module

Kees Cook <keescook@...omium.org> writes:
> This reduces the size of the stack frame when calling request_module().
> Performing the sprintf before the call is not needed.
>
> Signed-off-by: Kees Cook <keescook@...omium.org>

Acked-by: Rusty Russell <rusty@...tcorp.com.au>

Thanks,
Rusty.

> ---
>  drivers/mtd/chips/gen_probe.c |    4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/mtd/chips/gen_probe.c b/drivers/mtd/chips/gen_probe.c
> index 74dbb6b..ffb36ba 100644
> --- a/drivers/mtd/chips/gen_probe.c
> +++ b/drivers/mtd/chips/gen_probe.c
> @@ -211,9 +211,7 @@ static inline struct mtd_info *cfi_cmdset_unknown(struct map_info *map,
>  
>  	probe_function = __symbol_get(probename);
>  	if (!probe_function) {
> -		char modname[sizeof("cfi_cmdset_%4.4X")];
> -		sprintf(modname, "cfi_cmdset_%4.4X", type);
> -		request_module(modname);
> +		request_module("cfi_cmdset_%4.4X", type);
>  		probe_function = __symbol_get(probename);
>  	}
>  
> -- 
> 1.7.9.5
>
>
> -- 
> Kees Cook
> Chrome OS Security
> --
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