From 0639e02254e6863fc9c96666be45919437a6dc2e Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 10 May 2022 17:45:20 +0100 Subject: [PATCH] selftests/arm64: Use switch statements in mte_common_util.c In the MTE tests there are several places where we use chains of if statements to open code what could be written as switch statements, move over to switch statements to make the idiom clearer. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20220510164520.768783-6-broonie@kernel.org Signed-off-by: Catalin Marinas --- .../selftests/arm64/mte/mte_common_util.c | 23 +++++++++++++------ 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.c b/tools/testing/selftests/arm64/mte/mte_common_util.c index 6ff4c4bcbff14..00ffd34c66d30 100644 --- a/tools/testing/selftests/arm64/mte/mte_common_util.c +++ b/tools/testing/selftests/arm64/mte/mte_common_util.c @@ -128,13 +128,16 @@ static void *__mte_allocate_memory_range(size_t size, int mem_type, int mapping, int prot_flag, map_flag; size_t entire_size = size + range_before + range_after; - if (mem_type != USE_MALLOC && mem_type != USE_MMAP && - mem_type != USE_MPROTECT) { + switch (mem_type) { + case USE_MALLOC: + return malloc(entire_size) + range_before; + case USE_MMAP: + case USE_MPROTECT: + break; + default: ksft_print_msg("FAIL: Invalid allocate request\n"); return NULL; } - if (mem_type == USE_MALLOC) - return malloc(entire_size) + range_before; prot_flag = PROT_READ | PROT_WRITE; if (mem_type == USE_MMAP) @@ -287,13 +290,19 @@ int mte_switch_mode(int mte_option, unsigned long incl_mask) ksft_print_msg("FAIL: Invalid incl_mask %lx\n", incl_mask); return -EINVAL; } + en = PR_TAGGED_ADDR_ENABLE; - if (mte_option == MTE_SYNC_ERR) + switch (mte_option) { + case MTE_SYNC_ERR: en |= PR_MTE_TCF_SYNC; - else if (mte_option == MTE_ASYNC_ERR) + break; + case MTE_ASYNC_ERR: en |= PR_MTE_TCF_ASYNC; - else if (mte_option == MTE_NONE_ERR) + break; + case MTE_NONE_ERR: en |= PR_MTE_TCF_NONE; + break; + } en |= (incl_mask << PR_MTE_TAG_SHIFT); /* Enable address tagging ABI, mte error reporting mode and tag inclusion mask. */ -- 2.30.2