Commit-ID: e885cd805fc6e65ef5150a211c7bac02f925af04 Gitweb: http://git.kernel.org/tip/e885cd805fc6e65ef5150a211c7bac02f925af04 Author: Mark Salter <msalter@xxxxxxxxxx> AuthorDate: Fri, 10 Jan 2014 14:26:06 -0500 Committer: Matt Fleming <matt.fleming@xxxxxxxxx> CommitDate: Mon, 14 Apr 2014 17:49:37 +0100 efi: create memory map iteration helper 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 <msalter@xxxxxxxxxx> Signed-off-by: Leif Lindholm <leif.lindholm@xxxxxxxxxx> Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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