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Date: Fri, 27 Mar 2020 10:19:35 +0100 (CET)
From: checkpatch@dpdk.org
Subject: [dpdk-test-report] |WARNING| pw67269 [PATCH v2 4/7] net/virtio:
	reuse packed ring xmit functions
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Test-Label: checkpatch
Test-Status: WARNING
http://dpdk.org/patch/67269

_coding style issues_


CHECK:MACRO_ARG_REUSE: Macro argument reuse 'var' - possible side-effects?
#269: FILE: drivers/net/virtio/virtqueue.h:567:
+#define ASSIGN_UNLESS_EQUAL(var, val) do {	\
+	if ((var) != (val))			\
+		(var) = (val);			\
+} while (0)

CHECK:MACRO_ARG_REUSE: Macro argument reuse 'val' - possible side-effects?
#269: FILE: drivers/net/virtio/virtqueue.h:567:
+#define ASSIGN_UNLESS_EQUAL(var, val) do {	\
+	if ((var) != (val))			\
+		(var) = (val);			\
+} while (0)

CHECK:MACRO_ARG_REUSE: Macro argument reuse '_hdr' - possible side-effects?
#274: FILE: drivers/net/virtio/virtqueue.h:572:
+#define virtqueue_clear_net_hdr(_hdr) do {		\
+	ASSIGN_UNLESS_EQUAL((_hdr)->csum_start, 0);	\
+	ASSIGN_UNLESS_EQUAL((_hdr)->csum_offset, 0);	\
+	ASSIGN_UNLESS_EQUAL((_hdr)->flags, 0);		\
+	ASSIGN_UNLESS_EQUAL((_hdr)->gso_type, 0);	\
+	ASSIGN_UNLESS_EQUAL((_hdr)->gso_size, 0);	\
+	ASSIGN_UNLESS_EQUAL((_hdr)->hdr_len, 0);	\
+} while (0)

total: 0 errors, 0 warnings, 3 checks, 349 lines checked