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Define LWIP_CHKSUM_COPY_ALGORITHM when port provides LWIP_CHKSUM_COPY macro

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When the port has LWIP_CHECKSUM_ON_COPY enabled and provides
a definition of LWIP_CHKSUM_COPY, the existing logic left
LWIP_CHKSUM_COPY_ALGORITHM undefined

In this case we want it to be defined to 0 since none of the copy
checksum algorithms provided are being used

This commit also introduces indentation matching LWIP_CHKSUM to
improve the readability of the code
This commit is contained in:
Joel Cunningham 2016-01-20 11:34:25 -06:00
parent 0a67c06b51
commit 96373f6959
1 changed files with 9 additions and 7 deletions
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16
src/include/lwip/inet_chksum.h
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@ -56,14 +56,16 @@
#if LWIP_CHECKSUM_ON_COPY
/** Function-like macro: same as MEMCPY but returns the checksum of copied data
as u16_t */
#ifndef LWIP_CHKSUM_COPY
#define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len)
#ifndef LWIP_CHKSUM_COPY_ALGORITHM
#define LWIP_CHKSUM_COPY_ALGORITHM 1
#endif /* LWIP_CHKSUM_COPY_ALGORITHM */
#endif /* LWIP_CHKSUM_COPY */
# ifndef LWIP_CHKSUM_COPY
# define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len)
# ifndef LWIP_CHKSUM_COPY_ALGORITHM
# define LWIP_CHKSUM_COPY_ALGORITHM 1
# endif /* LWIP_CHKSUM_COPY_ALGORITHM */
# else /* LWIP_CHKSUM_COPY */
# define LWIP_CHKSUM_COPY_ALGORITHM 0
# endif /* LWIP_CHKSUM_COPY */
#else /* LWIP_CHECKSUM_ON_COPY */
#define LWIP_CHKSUM_COPY_ALGORITHM 0
# define LWIP_CHKSUM_COPY_ALGORITHM 0
#endif /* LWIP_CHECKSUM_ON_COPY */
#ifdef __cplusplus