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fix(libcpu): correct arm mpu region validation precedence

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AFWEF_147
2026-03-26 13:55:23 +00:00
committed by Rbb666
parent dedff58dd3
commit 2960935d2e
2 changed files with 4 additions and 4 deletions
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libcpu/arm/cortex-m33/mpu.c
+2 -2
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@@ -108,12 +108,12 @@ rt_bool_t rt_hw_mpu_region_valid(rt_mem_region_t *region)
LOG_E("Region size is too small"); LOG_E("Region size is too small");
return RT_FALSE; return RT_FALSE;
} }
if (region->size & (~(MPU_MIN_REGION_SIZE - 1U)) != region->size) if ((region->size & (~(MPU_MIN_REGION_SIZE - 1U))) != region->size)
{ {
LOG_E("Region size is not a multiple of 32 bytes"); LOG_E("Region size is not a multiple of 32 bytes");
return RT_FALSE; return RT_FALSE;
} }
if ((rt_uint32_t)region->start & (MPU_MIN_REGION_SIZE - 1U) != 0U) if (((rt_uint32_t)region->start & (MPU_MIN_REGION_SIZE - 1U)) != 0U)
{ {
LOG_E("Region is not aligned by 32 bytes"); LOG_E("Region is not aligned by 32 bytes");
return RT_FALSE; return RT_FALSE;
libcpu/arm/cortex-m7/mpu.c
+2 -2
View File
@@ -71,12 +71,12 @@ rt_bool_t rt_hw_mpu_region_valid(rt_mem_region_t *region)
LOG_E("Region size is too small"); LOG_E("Region size is too small");
return RT_FALSE; return RT_FALSE;
} }
if (region->size & (region->size - 1U) != 0U) if ((region->size & (region->size - 1U)) != 0U)
{ {
LOG_E("Region size is not power of 2"); LOG_E("Region size is not power of 2");
return RT_FALSE; return RT_FALSE;
} }
if ((rt_uint32_t)region->start & (region->size - 1U) != 0U) if (((rt_uint32_t)region->start & (region->size - 1U)) != 0U)
{ {
LOG_E("Region is not naturally aligned"); LOG_E("Region is not naturally aligned");
return RT_FALSE; return RT_FALSE;