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compress: Clear some simple scanbuild errors.

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On Fedora30, GCC9+ reports errors:
Issues report:
vbdev_compress.c:482:17: warning: Assigned value is garbage or undefined
        comp_op->m_src = src_mbufs[0];
                       ^ ~~~~~~~~~~~~
vbdev_compress.c:502:17: warning: Assigned value is garbage or undefined
        comp_op->m_dst = dst_mbufs[0];
                       ^ ~~~~~~~~~~~~
vbdev_compress.c:491:3: warning: 1st function call argument is an uninitialized value
                rte_pktmbuf_attach_extbuf(dst_mbufs[iov_index],

compress_ut.c:826:2: warning: Attempt to free released memory
        free(g_mbuf_mp);
        ^~~~~~~~~~~~~~~
Should remove free(g_mbuf_mp), for pointer exchange.

Change-Id: I1a48b7c309a4e2aa0aa513f9be44ae3504d9e385
Signed-off-by: yidong0635 <dongx.yi@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/462574
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
yidong0635 2019-07-19 06:24:16 -04:00 committed by Darek Stojaczyk
parent 38889bbfd6
commit a1de2fe007
2 changed files with 6 additions and 1 deletions
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5
lib/bdev/compress/vbdev_compress.c
View File

@ -436,6 +436,11 @@ _compress_operation(struct spdk_reduce_backing_dev *backing_dev, struct iovec *s
assert(src_iovcnt < MAX_MBUFS_PER_OP);
#ifdef DEBUG
memset(src_mbufs, 0, sizeof(src_mbufs));
memset(dst_mbufs, 0, sizeof(dst_mbufs));
#endif
comp_op = rte_comp_op_alloc(g_comp_op_mp);
if (!comp_op) {
SPDK_ERRLOG("trying to get a comp op!\n");

2
test/unit/lib/bdev/compress.c/compress_ut.c
View File

@ -66,6 +66,7 @@ static void mock_rte_pktmbuf_attach_extbuf(struct rte_mbuf *m, void *buf_addr, r
static void mock_rte_pktmbuf_attach_extbuf(struct rte_mbuf *m, void *buf_addr, rte_iova_t buf_iova,
uint16_t buf_len, struct rte_mbuf_ext_shared_info *shinfo)
{
assert(m != NULL);
m->buf_addr = buf_addr;
m->buf_iova = buf_iova;
m->buf_len = buf_len;
@ -823,7 +824,6 @@ test_initdrivers(void)
free(dev_qp);
}
free(g_mbuf_mp);
g_mbuf_mp = orig_mbuf_mp;
}