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fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex: removed that define

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Simon Goldschmidt 2011-10-13 19:29:48 +02:00 committed by goldsimon
parent aafa00f3aa
commit bd0a664446
3 changed files with 4 additions and 5 deletions
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3
CHANGELOG
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@ -49,6 +49,9 @@ HISTORY
++ Bugfixes: ++ Bugfixes:
2011-10-13: Simon Goldschmidt
* def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
2011-10-13: Simon Goldschmidt 2011-10-13: Simon Goldschmidt
* sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
used and not all protocols are enabled used and not all protocols are enabled

2
src/core/timers.c
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@ -367,7 +367,7 @@ sys_check_timeouts(void)
now = sys_now(); now = sys_now();
/* this cares for wraparounds */ /* this cares for wraparounds */
diff = LWIP_U32_DIFF(now, timeouts_last_time); diff = now - timeouts_last_time;
do do
{ {
#if PBUF_POOL_FREE_OOSEQ #if PBUF_POOL_FREE_OOSEQ

4
src/include/lwip/def.h
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@ -47,10 +47,6 @@ extern "C" {
#define NULL ((void *)0) #define NULL ((void *)0)
#endif #endif
/** Get the absolute difference between 2 u32_t values (correcting overflows)
* 'a' is expected to be 'higher' (without overflow) than 'b'. */
#define LWIP_U32_DIFF(a, b) (((a) >= (b)) ? ((a) - (b)) : (((a) + ((b) ^ 0xFFFFFFFF) + 1)))
/* Endianess-optimized shifting of two u8_t to create one u16_t */ /* Endianess-optimized shifting of two u8_t to create one u16_t */
#if BYTE_ORDER == LITTLE_ENDIAN #if BYTE_ORDER == LITTLE_ENDIAN
#define LWIP_MAKE_U16(a, b) ((a << 8) | b) #define LWIP_MAKE_U16(a, b) ((a << 8) | b)