From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Perches Subject: Re: [PATCH -next 2/2] bcache: Use max_t() when comparing different types Date: Thu, 06 Feb 2014 01:06:47 -0800 Message-ID: <1391677607.15777.2.camel@joe-AO722> References: <1389776784-30825-1-git-send-email-geert@linux-m68k.org> <1389776784-30825-2-git-send-email-geert@linux-m68k.org> <1389783998.14001.22.camel@joe-AO722> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from smtprelay0230.hostedemail.com ([216.40.44.230]:35281 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755245AbaBFJGw (ORCPT ); Thu, 6 Feb 2014 04:06:52 -0500 In-Reply-To: Sender: linux-next-owner@vger.kernel.org List-ID: To: Geert Uytterhoeven Cc: Andrew Morton , Kent Overstreet , Neil Brown , linux-bcache@vger.kernel.org, "linux-kernel@vger.kernel.org" , Linux-Next On Thu, 2014-02-06 at 10:00 +0100, Geert Uytterhoeven wrote: > On Mon, Feb 3, 2014 at 2:47 PM, Geert Uytterhoeven wrote: > > On Wed, Jan 15, 2014 at 12:06 PM, Joe Perches wro= te: > >> On Wed, 2014-01-15 at 10:06 +0100, Geert Uytterhoeven wrote: > >>> drivers/md/bcache/btree.c: In function =E2=80=98insert_u64s_remai= ning=E2=80=99: > >>> drivers/md/bcache/btree.c:1816: warning: comparison of distinct p= ointer types lacks a cast > >> [] > >>> diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.= c > >> [] > >>> @@ -1813,7 +1813,7 @@ static size_t insert_u64s_remaining(struct = btree *b) > >>> if (b->keys.ops->is_extents) > >>> ret -=3D KEY_MAX_U64S; > >>> > >>> - return max(ret, 0L); > >>> + return max_t(ssize_t, ret, 0L); > >> > >> why not > >> return max(ret, 0); > > > > Indeed, that also works, on both 32-bit and 64-bit. > > Will resend, now all the issues moved from -next to Linus' tree. >=20 > However, sparse doesn't like it, so we'll have to go for v1? Seems so.