From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Joe Perches <joe@perches.com>
Cc: Ray Zhang <sgzhang@google.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 1/3] mtd: mtdoops: change printk() to counterpart pr_ functions
Date: Sun, 9 Oct 2022 12:17:10 +0200 [thread overview]
Message-ID: <20221009121710.2ebf951c@xps-13> (raw)
In-Reply-To: <0d4febb49ddbae9cd99606a89573a7c832ed0965.camel@perches.com>
Hi Joe,
joe@perches.com wrote on Sat, 08 Oct 2022 00:25:07 -0700:
> On Fri, 2022-10-07 at 21:50 +0000, Ray Zhang wrote:
> > To comply with latest kernel code requirement, change printk() to
> > counterpart pr_ functions in mtdoops driver:
> > - change printk(INFO) to pr_info()
> > - change printk(DEBUG) to pr_debug()
> > - change printk(WARNING) to pr_warn()
> > - change printk(ERR) to pr_err()
> >
> > Note that only if dynamic debugging is enabled or DEBUG is defined,
> > printk(KERN_DEBUG) and pr_debug() are equivalent; Otherwise pr_debug()
> > is no-op, causing different behavior.
>
> Another thing possible is to add
>
> #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>
> before any #include
Good point.
> > diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
> []
> > @@ -93,9 +93,9 @@ static int mtdoops_erase_block(struct mtdoops_context *cxt, int offset)
> >
> > ret = mtd_erase(mtd, &erase);
> > if (ret) {
> > - printk(KERN_WARNING "mtdoops: erase of region [0x%llx, 0x%llx] on \"%s\" failed\n",
> > - (unsigned long long)erase.addr,
> > - (unsigned long long)erase.len, mtddev);
> > + pr_warn("mtdoops: erase of region [0x%llx, 0x%llx] on \"%s\" failed\n",
> > + (unsigned long long)erase.addr,
> > + (unsigned long long)erase.len, mtddev);
>
> And remove the "mtdoops: " prefixes from all the output formats
>
> pr_warn("erase of region [0x%llx, 0x%llx] on \"%s\" failed\n",
> (unsigned long long)erase.addr,
> (unsigned long long)erase.len, mtddev);
>
> > @@ -120,8 +120,8 @@ static void mtdoops_inc_counter(struct mtdoops_context *cxt)
> > return;
> > }
> >
> > - printk(KERN_DEBUG "mtdoops: ready %d, %d (no erase)\n",
> > - cxt->nextpage, cxt->nextcount);
> > + pr_debug("mtdoops: ready %d, %d (no erase)\n",
> > + cxt->nextpage, cxt->nextcount);
>
> pr_debug("ready %d, %d (no erase)\n", cxt->nextpage, cxt->nextcount);
>
> etc...
>
Thanks,
Miquèl
next prev parent reply other threads:[~2022-10-09 10:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-07 21:50 [PATCH v3 0/3] mtd: mtdoops: use pr_ functions, add and direct call mtdoops_erase function when panic Ray Zhang
2022-10-07 21:50 ` [PATCH v3 1/3] mtd: mtdoops: change printk() to counterpart pr_ functions Ray Zhang
2022-10-08 7:25 ` Joe Perches
2022-10-09 10:17 ` Miquel Raynal [this message]
2022-10-07 21:50 ` [PATCH v3 2/3] mtd: mtdoops: add mtdoops_erase function and move mtdoops_inc_counter to after it Ray Zhang
2022-10-07 21:50 ` [PATCH v3 3/3] mtd: mtdoops: panic caused mtdoops to call mtdoops_erase function immediately Ray Zhang
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