Messages in this thread Patch in this message | | | From | Mark Salter <> | Subject | [PATCH 1/6] efi: create memory map iteration helper | Date | Fri, 10 Jan 2014 17:29:05 -0500 |
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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@redhat.com> --- include/linux/efi.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/efi.h b/include/linux/efi.h index 11ce678..9dc5b05 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -618,6 +618,12 @@ 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 -- 1.8.3.1
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