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[dpdk-dev,v7,6/8] rte_mbuf.h: choose correct type for temp

Message ID 152695227738.111551.10673432630170296754.stgit@localhost.localdomain (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Andy Green May 22, 2018, 1:24 a.m. UTC 
  /projects/lagopus/src/dpdk/build/include/rte_mbuf.h:
In function 'rte_pktmbuf_linearize':
/projects/lagopus/src/dpdk/build/include/rte_mbuf.h:
1873:32: warning: conversion to 'int' from 'uint32_t'
{aka 'unsigned int'} may change the sign of the
result [-Wsign-conversion]
#define rte_pktmbuf_pkt_len(m) ((m)->pkt_len)
                                    ^
/projects/lagopus/src/dpdk/build/include/rte_mbuf.h:
2166:13: note: in expansion of macro 'rte_pktmbuf_pkt_len'
   copy_len = rte_pktmbuf_pkt_len(mbuf) -
rte_pktmbuf_data_len(mbuf);
                 ^~~~~~~~~~~~~~~~~~~
/projects/lagopus/src/dpdk/build/include/rte_mbuf.h:
2180:51: warning: conversion to 'size_t' {aka
'long unsigned int'} from 'int' may change the
sign of the result [-Wsign-conversion]
rte_memcpy(buffer, rte_pktmbuf_mtod(m, char *), seg_len);
                                                ^~~~~~~

The temp is consumed as a size_t.  So let's make it
a size_t in the first place.

Fixes: 1feda4d8fc ("mbuf: add a function to linearize a packet")
Signed-off-by: Andy Green <andy@warmcat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---
 lib/librte_mbuf/rte_mbuf.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 491503e47..0e89a6927 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -2161,7 +2161,7 @@  rte_validate_tx_offload(const struct rte_mbuf *m)
 static inline int
 rte_pktmbuf_linearize(struct rte_mbuf *mbuf)
 {
-	int seg_len, copy_len;
+	size_t seg_len, copy_len;
 	struct rte_mbuf *m;
 	struct rte_mbuf *m_next;
 	char *buffer;