soc/intel/common/mrc_cache: Honor MRC data as a constant pointer

The MRC cache API has absolutely no reason to modify the data it is
asked to stash. Reflect that by taking all "data" parameters as
const void *.

Change-Id: I7a14ffd7d5726aa9aa5db81df82c06e7f87b9d9f
Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com>
Reviewed-on: https://review.coreboot.org/14250
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/soc/intel/common/mrc_cache.h b/src/soc/intel/common/mrc_cache.h
index 25d9316aec..9b14c1efd8 100644
--- a/src/soc/intel/common/mrc_cache.h
+++ b/src/soc/intel/common/mrc_cache.h
@@ -34,8 +34,8 @@ int mrc_cache_get_current_with_version(const struct mrc_saved_data **cache,
 					uint32_t version);
 
 /* Stash the resulting MRC data to be saved in non-volatile storage later. */
-int mrc_cache_stash_data(void *data, size_t size);
-int mrc_cache_stash_data_with_version(void *data, size_t size,
+int mrc_cache_stash_data(const void *data, size_t size);
+int mrc_cache_stash_data_with_version(const void *data, size_t size,
 					uint32_t version);
 
 #endif /* _COMMON_MRC_CACHE_H_ */