Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 17 Mar 2020 15:08:29 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     Miroslav Benes <mbenes@suse.cz>
Cc:     tglx@linutronix.de, jpoimboe@redhat.com,
        linux-kernel@vger.kernel.org, x86@kernel.org
Subject: Re: [RFC][PATCH 05/16] objtool: Optimize find_symbol_by_index()
Message-ID: <20200317140829.GA20730@hirez.programming.kicks-ass.net>
References: <20200312134107.700205216@infradead.org>
 <20200312135041.699859794@infradead.org>
 <alpine.LSU.2.21.2003171253180.2339@pobox.suse.cz>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <alpine.LSU.2.21.2003171253180.2339@pobox.suse.cz>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Tue, Mar 17, 2020 at 12:55:01PM +0100, Miroslav Benes wrote:
> > --- a/tools/objtool/elf.h
> > +++ b/tools/objtool/elf.h
> > @@ -27,7 +27,6 @@ struct section {
> >  	struct list_head list;
> >  	GElf_Shdr sh;
> >  	struct list_head symbol_list;
> > -	DECLARE_HASHTABLE(symbol_hash, 8);
> >  	struct list_head rela_list;
> >  	DECLARE_HASHTABLE(rela_hash, 16);
> >  	struct section *base, *rela;
> > @@ -71,7 +70,7 @@ struct elf {
> >  	int fd;
> >  	char *name;
> >  	struct list_head sections;
> > -	DECLARE_HASHTABLE(rela_hash, 16);
> > +	DECLARE_HASHTABLE(symbol_hash, 20);
> >  };
> 
> Not that it really matters, but what was rela_hash in struct elf for 
> before this?

Unused afaict.