linux-kernel - Re: [PATCH v4 01/27] linkage: new macros for assembler symbols

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Date:   Wed, 25 Oct 2017 16:20:31 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
        x86@...nel.org, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Ingo Molnar <mingo@...nel.org>,
        Juergen Gross <jgross@...e.com>,
        Len Brown <len.brown@...el.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-pm@...r.kernel.org, Pavel Machek <pavel@....cz>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        xen-devel@...ts.xenproject.org
Subject: Re: [PATCH v4 01/27] linkage: new macros for assembler symbols

On 10/06/2017, 05:23 PM, Josh Poimboeuf wrote:
> On Mon, Oct 02, 2017 at 11:12:20AM +0200, Jiri Slaby wrote:
>>    SYM_CODE_INNER_LABEL -- only for labels in the middle of code
>>    SYM_CODE_INNER_LABEL_NOALIGN -- only for labels in the middle of code
> 
> Why are the inner labels aligned by default?  Seems like unaligned would
> be the most common case.

Correct:
$ git grep -w SYM_CODE_INNER_LABEL_NOALIGN arch/|wc -l
20
$ git grep -w SYM_CODE_INNER_LABEL arch/|wc -l
3

Will switch them.

>> d) For data
>>    SYM_DATA_START -- global data symbol
>>    SYM_DATA_END -- the end of the SYM_DATA_START symbol
>>    SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol
>>    SYM_DATA_SIMPLE -- start+end wrapper around simple global data
>>    SYM_DATA_SIMPLE_LOCAL -- start+end wrapper around simple local data
> 
> "SIMPLE" seems superfluous, how about s/SYM_DATA_SIMPLE/SYM_DATA/ ?

Yup, makes sense, will do.

thanks,
-- 
js
suse labs