diff options
| author | Mark Salter <msalter@redhat.com> | 2014-01-10 14:26:06 -0500 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2014-04-14 17:49:37 +0100 |
| commit | e885cd805fc6e65ef5150a211c7bac02f925af04 (patch) | |
| tree | d11d57427c15bd5210f8d2b4d34c71566d489484 /include/linux/efi.h | |
| parent | 9403e462fb5ffa9eeaa9663cb23ded02b7e603a3 (diff) | |
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@redhat.com>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index 6c100ff0cae4..82d0abb2b19f 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 |