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authorJustin Chadwell <justin.chadwell@arm.com>2019-09-20 09:13:14 +0100
committerJustin Chadwell <justin.chadwell@arm.com>2019-09-20 09:17:55 +0100
commit019b03a3001a61f7d42fa70abee6c284f542b2d2 (patch)
tree43579e0c40f00d40879fb9e140470d113eb6b2b5
parent6a7cbfd56837409b85c26df0206177e59fc95a79 (diff)
Fix MTE support from causing unused variable warnings
assert() calls are removed in release builds, and if that assert call is the only use of a variable, an unused variable warning will be triggered in a release build. This patch fixes this problem when CTX_INCLUDE_MTE_REGS by not using an intermediate variable to store the results of get_armv8_5_mte_support(). Change-Id: I529e10ec0b2c8650d2c3ab52c4f0cecc0b3a670e Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>
-rw-r--r--lib/el3_runtime/aarch64/context_mgmt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/el3_runtime/aarch64/context_mgmt.c b/lib/el3_runtime/aarch64/context_mgmt.c
index a05ee5a6..d65e02d5 100644
--- a/lib/el3_runtime/aarch64/context_mgmt.c
+++ b/lib/el3_runtime/aarch64/context_mgmt.c
@@ -142,11 +142,11 @@ void cm_setup_context(cpu_context_t *ctx, const entry_point_info_t *ep)
* world, and only for the secure world when CTX_INCLUDE_MTE_REGS is
* set.
*/
- unsigned int mte = get_armv8_5_mte_support();
#if CTX_INCLUDE_MTE_REGS
- assert(mte == MTE_IMPLEMENTED_ELX);
+ assert(get_armv8_5_mte_support() == MTE_IMPLEMENTED_ELX);
scr_el3 |= SCR_ATA_BIT;
#else
+ unsigned int mte = get_armv8_5_mte_support();
if (mte == MTE_IMPLEMENTED_EL0) {
/*
* Can enable MTE across both worlds as no MTE registers are