PBUF_RAM allocation allows configuration of MARGIN_LEN · RT-Thread/rt-thread@562db38 · GitHub

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Commit 562db38

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rcitach

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PBUF_RAM allocation allows configuration of MARGIN_LEN

1 parent 9580afd commit 562db38
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+4-1Lines changed: 4 additions & 1 deletion

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• components/net/lwip/lwip-2.1.2/src/core
  • pbuf.c

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‎components/net/lwip/lwip-2.1.2/src/core/pbuf.c‎

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+4-1Lines changed: 4 additions & 1 deletion

Original file line number	Diff line number	Diff line change
@@ -271,7 +271,10 @@ pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type)
271	271	break;
272	272	}
273	273	case PBUF_RAM: {
274		- u16_t payload_len = (u16_t)(LWIP_MEM_ALIGN_SIZE(offset) + LWIP_MEM_ALIGN_SIZE(length));
	274	+ mem_size_t payload_len = (mem_size_t)(LWIP_MEM_ALIGN_SIZE(offset) + LWIP_MEM_ALIGN_SIZE(length));
	275	+ #if PBUF_PAYLOAD_MARGIN_LEN > 0
	276	+ payload_len += LWIP_MEM_ALIGN_SIZE(PBUF_PAYLOAD_MARGIN_LEN);
	277	+ #endif
275	278	mem_size_t alloc_len = (mem_size_t)(LWIP_MEM_ALIGN_SIZE(SIZEOF_STRUCT_PBUF) + payload_len);
276	279
277	280	/* bug #50040: Check for integer overflow when calculating alloc_len */

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