From: arnd@arndb.de (Arnd Bergmann) Date: Tue, 8 Feb 2011 16:17:58 +0100 Subject: [PATCH v2] ARM: Define wfi() macro for v6 processors In-Reply-To: References: <1297162885-2975-1-git-send-email-dave.martin@linaro.org> <19a3630aad67b496a4e36354abc63c4a@mail.gmail.com> Message-ID: <201102081617.59092.arnd@arndb.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tuesday 08 February 2011, Dave Martin wrote: > CFLAGS_cpu_specific_object.o += -march=armv7-a > > Whether it's safe to do it depends on whether code from that file > could ever get run on other processors. I'm not so sure of the answer > to that..., but perhaps someone else has a better idea. We already do this a lot from arch/arm/mm/Makefile, and those files are typically just one function per file, so they can easily be proven to be safe that way. Arnd