From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Tue, 1 Jul 2014 10:23:46 +0100 Subject: [PATCH v2 09/10] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: Remove default gate area In-Reply-To: References: Message-ID: <20140701092345.GH28164@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Jun 30, 2014 at 10:53:20PM +0100, Andy Lutomirski wrote: > The core mm code will provide a default gate area based on > FIXADDR_USER_START and FIXADDR_USER_END if > !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR). > > This default is only useful for ia64. arm64, ppc, s390, sh, tile, > 64-bit UML, and x86_32 have their own code just to disable it. arm, > 32-bit UML, and x86_64 have gate areas, but they have their own > implementations. > > This gets rid of the default and moves the code into ia64. > > This should save some code on architectures without a gate area: it's > now possible to inline the gate_area functions in the default case. For the arm64 bit: Acked-by: Will Deacon Will