Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753052AbaDDM1B (ORCPT ); Fri, 4 Apr 2014 08:27:01 -0400 Received: from mail-we0-f171.google.com ([74.125.82.171]:61211 "EHLO mail-we0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752929AbaDDM0i (ORCPT ); Fri, 4 Apr 2014 08:26:38 -0400 From: Leif Lindholm To: linux-efi@vger.kernel.org, matt.fleming@intel.com Cc: linux-kernel@vger.kernel.org, Mark Salter , Leif Lindholm Subject: [PATCH 2/5] efi: create memory map iteration helper Date: Fri, 4 Apr 2014 13:25:47 +0100 Message-Id: <1396614350-20889-3-git-send-email-leif.lindholm@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1396614350-20889-1-git-send-email-leif.lindholm@linaro.org> References: <1396614350-20889-1-git-send-email-leif.lindholm@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mark Salter There are a lot of places in the kernel which iterate through an EFI memory map. Most of these places use essentially the same for-loop code. This patch adds a for_each_efi_memory_desc() helper to clean up all of the existing duplicate code and avoid more in the future. Signed-off-by: Mark Salter Signed-off-by: Leif Lindholm --- include/linux/efi.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/efi.h b/include/linux/efi.h index 6c100ff..82d0abb 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -863,6 +863,12 @@ extern int efi_set_rtc_mmss(const struct timespec *now); extern void efi_reserve_boot_services(void); extern struct efi_memory_map memmap; +/* Iterate through an efi_memory_map */ +#define for_each_efi_memory_desc(m, md) \ + for ((md) = (m)->map; \ + (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \ + (md) = (void *)(md) + (m)->desc_size) + /** * efi_range_is_wc - check the WC bit on an address range * @start: starting kvirt address -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/