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Subject: |WARNING| pw149178 [PATCH v3 17/22] net/iavf: use common Tx queue
 mbuf cleanup fn
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To: test-report@dpdk.org
From: checkpatch@dpdk.org
Cc: Bruce Richardson <bruce.richardson@intel.com>
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Date: Wed, 11 Dec 2024 18:36:43 +0100 (CET)
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Test-Label: checkpatch
Test-Status: WARNING
http://dpdk.org/patch/149178

_coding style issues_


CHECK:MACRO_ARG_REUSE: Macro argument reuse 'swr' - possible side-effects?
#101: FILE: drivers/net/_common_intel/tx.h:274:
+#define IETH_FREE_BUFS_LOOP(swr, nb_desc, start, end) do { \
 		uint16_t i = start; \
+		if (end < i) { \
+			for (; i < nb_desc; i++) { \
 				rte_pktmbuf_free_seg(swr[i].mbuf); \
 				swr[i].mbuf = NULL; \
 			} \
 			i = 0; \
 		} \
+		for (; i < end; i++) { \
 			rte_pktmbuf_free_seg(swr[i].mbuf); \
 			swr[i].mbuf = NULL; \
 		} \
 } while (0)

CHECK:MACRO_ARG_PRECEDENCE: Macro argument 'nb_desc' may be better as '(nb_desc)' to avoid precedence issues
#101: FILE: drivers/net/_common_intel/tx.h:274:
+#define IETH_FREE_BUFS_LOOP(swr, nb_desc, start, end) do { \
 		uint16_t i = start; \
+		if (end < i) { \
+			for (; i < nb_desc; i++) { \
 				rte_pktmbuf_free_seg(swr[i].mbuf); \
 				swr[i].mbuf = NULL; \
 			} \
 			i = 0; \
 		} \
+		for (; i < end; i++) { \
 			rte_pktmbuf_free_seg(swr[i].mbuf); \
 			swr[i].mbuf = NULL; \
 		} \
 } while (0)

CHECK:MACRO_ARG_REUSE: Macro argument reuse 'end' - possible side-effects?
#101: FILE: drivers/net/_common_intel/tx.h:274:
+#define IETH_FREE_BUFS_LOOP(swr, nb_desc, start, end) do { \
 		uint16_t i = start; \
+		if (end < i) { \
+			for (; i < nb_desc; i++) { \
 				rte_pktmbuf_free_seg(swr[i].mbuf); \
 				swr[i].mbuf = NULL; \
 			} \
 			i = 0; \
 		} \
+		for (; i < end; i++) { \
 			rte_pktmbuf_free_seg(swr[i].mbuf); \
 			swr[i].mbuf = NULL; \
 		} \
 } while (0)

CHECK:MACRO_ARG_PRECEDENCE: Macro argument 'end' may be better as '(end)' to avoid precedence issues
#101: FILE: drivers/net/_common_intel/tx.h:274:
+#define IETH_FREE_BUFS_LOOP(swr, nb_desc, start, end) do { \
 		uint16_t i = start; \
+		if (end < i) { \
+			for (; i < nb_desc; i++) { \
 				rte_pktmbuf_free_seg(swr[i].mbuf); \
 				swr[i].mbuf = NULL; \
 			} \
 			i = 0; \
 		} \
+		for (; i < end; i++) { \
 			rte_pktmbuf_free_seg(swr[i].mbuf); \
 			swr[i].mbuf = NULL; \
 		} \
 } while (0)

total: 0 errors, 0 warnings, 4 checks, 287 lines checked