linux-kernel - Re: [PATCH 1/6] staging: lustre: lustre: resolve "use spaces between elements" checkpatch errors

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Date:   Wed, 14 Jun 2017 11:10:20 -0700
From:   Joe Perches <joe@...ches.com>
To:     James Simmons <jsimmons@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org,
        Andreas Dilger <andreas.dilger@...el.com>,
        Oleg Drokin <oleg.drokin@...el.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Lustre Development List <lustre-devel@...ts.lustre.org>
Subject: Re: [PATCH 1/6] staging: lustre: lustre: resolve "use spaces
 between elements" checkpatch errors

On Wed, 2017-06-14 at 11:01 -0400, James Simmons wrote:
> Due to the way the DFID was embedded in our debug strings checkpatch
> would report the following error:

unrelated trivia

> diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
[]
> @@ -532,7 +532,7 @@ static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
>  #define FID_NOBRACE_LEN 40
>  #define FID_LEN (FID_NOBRACE_LEN + 2)
>  #define DFID_NOBRACE "%#llx:0x%x:0x%x"

It's odd to use a mixture of %#x and 0x%x.

Using
	#define DFID_NOBRACE "%#llx:%#x:%#x"
would also save a couple bytes per use.

Does there need to be a difference between an SFID
and a DFID_NOBRACE?