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ip4: Fix IPH_OFFSET_BYTES macro

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Current code only works if the argument happen to be named as fraghdr,
fix it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: goldsimon <goldsimon@gmx.de>
This commit is contained in:
Axel Lin 2017-12-12 21:52:08 +08:00 committed by goldsimon
parent 892e30d8c1
commit df563e74f9
1 changed files with 1 additions and 1 deletions
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src/include/lwip/prot/ip4.h
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@ -108,7 +108,7 @@ PACK_STRUCT_END
#define IPH_LEN(hdr) ((hdr)->_len)
#define IPH_ID(hdr) ((hdr)->_id)
#define IPH_OFFSET(hdr) ((hdr)->_offset)
#define IPH_OFFSET_BYTES(hdr) ((u16_t)((lwip_ntohs(IPH_OFFSET(fraghdr)) & IP_OFFMASK) * 8U))
#define IPH_OFFSET_BYTES(hdr) ((u16_t)((lwip_ntohs(IPH_OFFSET(hdr)) & IP_OFFMASK) * 8U))
#define IPH_TTL(hdr) ((hdr)->_ttl)
#define IPH_PROTO(hdr) ((hdr)->_proto)
#define IPH_CHKSUM(hdr) ((hdr)->_chksum)