linux-kernel - Re: [PATCH 4/4 v2] arc: fix printk warning in arc/plat-eznps/mtm.c

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Message-ID: <20180729070317.GD7157@mtr-leonro.mtl.com>
Date:   Sun, 29 Jul 2018 10:03:17 +0300
From:   Leon Romanovsky <leonro@...lanox.com>
To:     rd_dunlab <rd.dunlab@...il.com>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Vineet Gupta <vgupta@...opsys.com>,
        linux-snps-arc@...ts.infradead.org,
        Elad Kanfi <eladkan@...lanox.com>,
        Ofer Levi <oferle@...lanox.com>
Subject: Re: [PATCH 4/4 v2] arc: fix printk warning in arc/plat-eznps/mtm.c

On Thu, Jul 26, 2018 at 08:16:35PM -0700, rd_dunlab wrote:
> From: Randy Dunlap <rdunlap@...radead.org>
>
> Fix printk format warning in arch/arc/plat-eznps/mtm.c:
>
> In file included from ../include/linux/printk.h:7,
>                  from ../include/linux/kernel.h:14,
>                  from ../include/linux/list.h:9,
>                  from ../include/linux/smp.h:12,
>                  from ../arch/arc/plat-eznps/mtm.c:17:
> ../arch/arc/plat-eznps/mtm.c: In function 'set_mtm_hs_ctr':
> ../include/linux/kern_levels.h:5:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
>  #define KERN_SOH "\001"  /* ASCII Start Of Header */
>                   ^~~~~~
> ../include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
>  #define KERN_ERR KERN_SOH "3" /* error conditions */
>                   ^~~~~~~~
> ../include/linux/printk.h:308:9: note: in expansion of macro 'KERN_ERR'
>   printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
>          ^~~~~~~~
> ../arch/arc/plat-eznps/mtm.c:166:3: note: in expansion of macro 'pr_err'
>    pr_err("** Invalid @nps_mtm_hs_ctr [%d] needs to be [%d:%d] (incl)\n",
>    ^~~~~~
> ../arch/arc/plat-eznps/mtm.c:166:40: note: format string is defined here
>    pr_err("** Invalid @nps_mtm_hs_ctr [%d] needs to be [%d:%d] (incl)\n",
>                                        ~^
>                                        %ld
> The hs_ctr variable can just be int instead of long, so also change
> kstrtol() to kstrtoint() and leave the format string as %d.
>
> Also add 2 header files since they are used in mtm.c and we prefer
> not to depend on accidental/indirect #includes.
>
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Cc: Vineet Gupta <vgupta@...opsys.com>
> Cc: linux-snps-arc@...ts.infradead.org
> Cc: Elad Kanfi <eladkan@...lanox.com>
> Cc: Leon Romanovsky <leonro@...lanox.com>
> Cc: Ofer Levi <oferle@...lanox.com>
> ---
> v2: no change
>
>  arch/arc/plat-eznps/mtm.c |    6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>

Thanks,
Reviewed-by: Leon Romanovsky <leonro@...lanox.com>