linux-kernel - Re: [PATCH] nbd: add missing definition of pr

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Date:   Wed, 20 Jul 2022 19:46:46 +0800
From:   Yu Kuai <yukuai1@...weicloud.com>
To:     Joe Perches <joe@...ches.com>, josef@...icpanda.com,
        axboe@...nel.dk, houtao1@...wei.com
Cc:     linux-block@...r.kernel.org, nbd@...er.debian.org,
        linux-kernel@...r.kernel.org, yi.zhang@...wei.com
Subject: Re: [PATCH] nbd: add missing definition of pr_fmt

Hi !

在 2022/07/18 22:32, Joe Perches 写道:
> On Mon, 2022-07-18 at 21:52 +0800, Yu Kuai wrote:
>> 在 2022/07/06 17:33, Yu Kuai 写道:
>>> From: Yu Kuai <yukuai3@...wei.com>
>>>
>>> commit 1243172d5894 ("nbd: use pr_err to output error message") tries
>>> to define pr_fmt and use short pr_err() to output error message,
>>> however, the definition is missed.
>> friendly ping ...
> []
>>> diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
> []
>>> @@ -44,6 +44,9 @@
>>>    #include <linux/nbd-netlink.h>
>>>    #include <net/genetlink.h>
>>>    
>>> +#undef pr_fmt
>>> +#define pr_fmt(fmt) "nbd: " fmt
>>> +
> Typically, this #define is place before all #include lines
> so there is no need for an #undef

Thanks for you advice, I'll do that in v2.

Kuai