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LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT: 'lfree' mus be volatile

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This commit is contained in:
goldsimon 2018-04-18 22:12:46 +02:00
parent 71c13c6079
commit ef3073aaf9
1 changed files with 5 additions and 2 deletions
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7
src/core/mem.c
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@ -384,8 +384,6 @@ LWIP_DECLARE_MEMORY_ALIGNED(ram_heap, MEM_SIZE_ALIGNED + (2U * SIZEOF_STRUCT_MEM
static u8_t *ram;
/** the last entry, always unused! */
static struct mem *ram_end;
/** pointer to the lowest free block, this is used for faster search */
static struct mem *lfree;
/** concurrent access protection */
#if !NO_SYS
@ -403,6 +401,7 @@ static volatile u8_t mem_free_count;
#define LWIP_MEM_ALLOC_DECL_PROTECT() SYS_ARCH_DECL_PROTECT(lev_alloc)
#define LWIP_MEM_ALLOC_PROTECT() SYS_ARCH_PROTECT(lev_alloc)
#define LWIP_MEM_ALLOC_UNPROTECT() SYS_ARCH_UNPROTECT(lev_alloc)
#define LWIP_MEM_LFREE_VOLATILE volatile
#else /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */
@ -414,9 +413,13 @@ static volatile u8_t mem_free_count;
#define LWIP_MEM_ALLOC_DECL_PROTECT()
#define LWIP_MEM_ALLOC_PROTECT()
#define LWIP_MEM_ALLOC_UNPROTECT()
#define LWIP_MEM_LFREE_VOLATILE
#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */
/** pointer to the lowest free block, this is used for faster search */
static struct mem * LWIP_MEM_LFREE_VOLATILE lfree;
#if MEM_SANITY_CHECK
static void mem_sanity(void);
#define MEM_SANITY() mem_sanity()