linux-kernel - Re: [PATCH] hwrng: core: Convert sprintf/snprintf to sysfs

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Date: Thu, 28 Mar 2024 18:54:29 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Li Zhijian <lizhijian@...itsu.com>
Cc: linux-kernel@...r.kernel.org, Olivia Mackall <olivia@...enic.com>,
	linux-crypto@...r.kernel.org
Subject: Re: [PATCH] hwrng: core: Convert sprintf/snprintf to sysfs_emit

On Thu, Mar 14, 2024 at 04:45:59PM +0800, Li Zhijian wrote:
> Per filesystems/sysfs.rst, show() should only use sysfs_emit()
> or sysfs_emit_at() when formatting the value to be returned to user space.
> 
> coccinelle complains that there are still a couple of functions that use
> snprintf(). Convert them to sysfs_emit().
> 
> sprintf() will be converted as weel if they have.
> 
> Generally, this patch is generated by
> make coccicheck M=<path/to/file> MODE=patch \
> COCCI=scripts/coccinelle/api/device_attr_show.cocci
> 
> No functional change intended
> 
> CC: Olivia Mackall <olivia@...enic.com>
> CC: Herbert Xu <herbert@...dor.apana.org.au>
> CC: linux-crypto@...r.kernel.org
> Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
> ---
> This is a part of the work "Fix coccicheck device_attr_show warnings"[1]
> Split them per subsystem so that the maintainer can review it easily
> [1] https://lore.kernel.org/lkml/20240116041129.3937800-1-lizhijian@fujitsu.com/
> ---
>  drivers/char/hw_random/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt