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authorChris Luke <chrisy@flirble.org>2016-07-22 09:40:19 -0400
committerChris Luke <chrisy@flirble.org>2016-07-22 10:13:41 -0400
commit1642e3903d5467baf88531c96c733c285418b953 (patch)
treec7081b08e84d4f449b39ab34003cbd344cfb2661
parent1f0da170e818a6991d841df47de0885da720b0c3 (diff)
VPP-189 Fix 137 coverity no-op issues from vpeapigen
vpeapigen is not properly detecting no-op endian swap operations (on u8 or u8[] types) which in turn causes Coverity to currently report ~137 minor issues from the generated vpe.api.h file. This patch makes vpeapigen comment out those no-op situations thus: /* a->interface_name[0..63] = a->interface_name[0..63] (no-op) */ /* a->admin_up_down = a->admin_up_down (no-op) */ Change-Id: Ifbc5c93e1939206656e0515b528a4d167c539fd2 Signed-off-by: Chris Luke <chrisy@flirble.org>
-rw-r--r--vppapigen/node.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/vppapigen/node.c b/vppapigen/node.c
index ef812787c8a..ab8adc568c6 100644
--- a/vppapigen/node.c
+++ b/vppapigen/node.c
@@ -172,7 +172,7 @@ void node_u8_generate (node_t *this, enum passid which, FILE *ofp)
node_vft_t node_u8_vft = {
node_u8_print,
node_u8_generate,
- ""
+ NULL
};
void node_u16_print (node_t *this)
@@ -527,7 +527,7 @@ void node_scalar_generate (node_t *this, enum passid which, FILE *fp)
CDATA0, current_endianfun,
union_prefix, CDATA0);
} else {
- fprintf(fp, "/* a->%s%s = a->%s%s */\n",
+ fprintf(fp, "/* a->%s%s = a->%s%s (no-op) */\n",
union_prefix, CDATA0,
union_prefix, CDATA0);
}
@@ -611,6 +611,16 @@ void node_vector_generate (node_t *this, enum passid which, FILE *fp)
/* Don't bother about "u8 data [0];" et al. */
if (IDATA1 == 0)
break;
+ /* If this is a simple endian swap, but the endian swap method is a no-op,
+ * then indicate this is a no-op in a comment.
+ */
+ if (!current_is_complex && current_endianfun == NULL) {
+ indent_me(fp);
+ fprintf(fp, "/* a->%s%s[0..%d] = a->%s%s[0..%d] (no-op) */\n",
+ union_prefix, CDATA0, IDATA1 - 1,
+ union_prefix, CDATA0, IDATA1 - 1);
+ break;
+ }
indent_me(fp);
fprintf(fp, "{\n");