diff options
| author | Mark Salter <msalter@redhat.com> | 2014-01-10 14:26:06 -0500 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-08-08 19:21:46 +0100 |
| commit | c6a99bb2c26a0ca26bf3e732172673337ed0bc79 (patch) | |
| tree | ac7ffcebd0b44133bcd2f128fcfa50a9ca53c660 | |
| parent | 3dce72e58d545c0e4716089ae34e0dde327aa75a (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>
(cherry picked from commit e885cd805fc6e65ef5150a211c7bac02f925af04)
Signed-off-by: Mark Brown <broonie@linaro.org>
| -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 dc1a28bb8b8b..a50bf34c041b 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -633,6 +633,12 @@ extern void efi_reserve_boot_services(void); extern int efi_get_fdt_params(struct efi_fdt_params *params, int verbose); 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 |