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Date:   Wed, 22 Apr 2020 21:22:35 +0200
From:   Ingo Molnar <mingo@kernel.org>
To:     Matt Helsley <mhelsley@vmware.com>,
        Peter Zijlstra <peterz@infradead.org>,
        linux-kernel@vger.kernel.org, Josh Poimboeuf <jpoimboe@redhat.com>,
        Sami Tolvanen <samitolvanen@google.com>,
        Borislav Petkov <bp@alien8.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 2/3] objtool: Rename elf_read() to elf_open_read()
Message-ID: <20200422192235.GA14331@gmail.com>
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 <20200422114342.GD20730@hirez.programming.kicks-ass.net>
 <20200422142235.GA2840@gmail.com>
 <20200422170048.GA9040@rlwimi.vmware.com>
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* Matt Helsley <mhelsley@vmware.com> wrote:

> On Wed, Apr 22, 2020 at 04:22:35PM +0200, Ingo Molnar wrote:
> > 
> > * Peter Zijlstra <peterz@infradead.org> wrote:
> > 
> > > On Wed, Apr 22, 2020 at 12:32:04PM +0200, Ingo Molnar wrote:
> > > > 'struct elf *' handling is an open/close paradigm, make sure the naming
> > > > matches that:
> > > > 
> > > >    elf_open_read()
> > > >    elf_write()
> > > >    elf_close()
> > > 
> > > 
> > > > diff --git a/tools/objtool/check.c b/tools/objtool/check.c
> > > > index f2a84271e807..12e2aea42bb2 100644
> > > > --- a/tools/objtool/check.c
> > > > +++ b/tools/objtool/check.c
> > > > @@ -2614,7 +2614,7 @@ int check(const char *_objname, bool orc)
> > > >  
> > > >  	objname = _objname;
> > > >  
> > > > -	file.elf = elf_read(objname, orc ? O_RDWR : O_RDONLY);
> > > > +	file.elf = elf_open_read(objname, orc ? O_RDWR : O_RDONLY);
> > > 
> > > Note that I have a patch pending that makes that unconditionally O_RDWR,
> > > which sort of seems to suggest elf_open() might be the better name.
> > 
> > Ok, done!
> 
> It might be a better name but there could be a problem with it --
> see 8e144797f1a67c52e386161863da4614a23ad913
> "objtool: Rename elf_open() to prevent conflict with libelf from elftoolchain"
> 
> Unless I'm forgetting something I think that'd still be an issue.

Indeed, that's a good point - I'll move back to elf_open_read()! :-)

Thanks,

	Ingo