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authorSandrine Bailleux <sandrine.bailleux@arm.com>2019-06-07 14:33:51 +0200
committerSandrine Bailleux <sandrine.bailleux@arm.com>2019-06-13 12:53:17 +0200
commit2efb7ddc3b77a1ff11921083f290aebedbc935a2 (patch)
tree58509eb3e20646dadef3bf970bf557cc85fa56dc
parentdc593ddc07fc942fd1c43106b7783550a8ad6714 (diff)
Fix type of cot_desc_ptr
The chain of trust description and the pointer pointing to its first element were incompatible, thus requiring an explicit type cast for the assignment. - cot_desc was an array of const pointers to const image descriptors. - cot_desc_ptr was a const pointer to (non-constant) pointers to const image descriptors. Thus, trying to assign cot_desc to cot_desc_ptr (with no cast) would generate the following compiler warning: drivers/auth/tbbr/tbbr_cot.c:826:14: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers] REGISTER_COT(cot_desc); ^~~~~~~~ Change-Id: Iae62dd1bdb43fe379e3843d96461d47cc2f68a06 Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
-rw-r--r--drivers/auth/auth_mod.c2
-rw-r--r--include/drivers/auth/auth_mod.h5
2 files changed, 3 insertions, 4 deletions
diff --git a/drivers/auth/auth_mod.c b/drivers/auth/auth_mod.c
index 01f8f290..a6538c4e 100644
--- a/drivers/auth/auth_mod.c
+++ b/drivers/auth/auth_mod.c
@@ -31,7 +31,7 @@
#pragma weak plat_set_nv_ctr2
/* Pointer to CoT */
-extern const auth_img_desc_t **const cot_desc_ptr;
+extern const auth_img_desc_t *const *const cot_desc_ptr;
extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
static int cmp_auth_param_type_desc(const auth_param_type_desc_t *a,
diff --git a/include/drivers/auth/auth_mod.h b/include/drivers/auth/auth_mod.h
index 39f5372e..6c48124b 100644
--- a/include/drivers/auth/auth_mod.h
+++ b/include/drivers/auth/auth_mod.h
@@ -40,11 +40,10 @@ int auth_mod_verify_img(unsigned int img_id,
/* Macro to register a CoT defined as an array of auth_img_desc_t pointers */
#define REGISTER_COT(_cot) \
- const auth_img_desc_t **const cot_desc_ptr = \
- (const auth_img_desc_t **const)_cot; \
+ const auth_img_desc_t *const *const cot_desc_ptr = (_cot); \
unsigned int auth_img_flags[MAX_NUMBER_IDS]
-extern const auth_img_desc_t **const cot_desc_ptr;
+extern const auth_img_desc_t *const *const cot_desc_ptr;
extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
#endif /* TRUSTED_BOARD_BOOT */