[RFC 0/8] Avoid overlapping declarations

[RFC 0/8] Avoid overlapping declarations

[Stephen Hemminger]

This is first part of changes to fix places where a variable
declaration overlaps another. These get shown if -Wshadow
is enabled.  Lots of drivers and eventdev still have
this problem.

Stephen Hemminger (8):
  test/ring: avoid shadow variable usage
  test/table: replace conflicting variable name
  eal: add macro to disable shadow warnings
  eal: avoid shadowed variable aligned_end
  eal: avoid shadowed variables in trace code
  ethdev: avoid shadowed variable warnings
  telemetry: avoid potential name conflict for handler
  pcapng: avoid shadow declaration warning

 app/test/test_ring.c              | 190 +++++++++++++++---------------
 app/test/test_table.c             |   2 +-
 app/test/test_table.h             |   2 +-
 app/test/test_table_acl.c         |  28 ++---
 app/test/test_table_pipeline.c    |  22 ++--
 lib/eal/common/eal_common_trace.c |  42 +++----
 lib/eal/common/malloc_heap.c      |   6 +-
 lib/eal/include/rte_common.h      |  17 +++
 lib/ethdev/ethdev_driver.c        |   2 +-
 lib/ethdev/ethdev_driver.h        |   6 +-
 lib/ethdev/rte_ethdev.c           |   1 -
 lib/pcapng/rte_pcapng.c           |   9 +-
 lib/telemetry/rte_telemetry.h     |   2 +-
 lib/telemetry/telemetry.c         |   2 +-
 14 files changed, 173 insertions(+), 158 deletions(-)

-- 
2.47.2

[RFC 1/8] test/ring: avoid shadow variable usage

[Stephen Hemminger]

The code had a global array "esize" and also local variable
with same name. This would cause warnings if -Wshadow was enabled.
Fix by renaming the array to "esizes".

Fixes: a9fe152363e2 ("test/ring: add custom element size functional tests")
Cc: honnappa.nagarahalli@arm.com

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/test/test_ring.c | 190 +++++++++++++++++++++----------------------
 1 file changed, 95 insertions(+), 95 deletions(-)

diff --git a/app/test/test_ring.c b/app/test/test_ring.c
index ba1fec1de3..dadd8be612 100644
--- a/app/test/test_ring.c
+++ b/app/test/test_ring.c
@@ -66,7 +66,7 @@
 
 #define TEST_RING_FULL_EMPTY_ITER	8
 
-static const int esize[] = {-1, 4, 8, 16, 20};
+static const int esizes[] = {-1, 4, 8, 16, 20};
 
 /* Wrappers around the zero-copy APIs. The wrappers match
  * the normal enqueue/dequeue API declarations.
@@ -514,9 +514,9 @@ test_ring_negative_tests(void)
 	}
 
 
-	for (i = 0; i < RTE_DIM(esize); i++) {
+	for (i = 0; i < RTE_DIM(esizes); i++) {
 		/* Test if ring size is not power of 2 */
-		rp = test_ring_create("test_bad_ring_size", esize[i],
+		rp = test_ring_create("test_bad_ring_size", esizes[i],
 					RING_SIZE + 1, SOCKET_ID_ANY, 0);
 		if (rp != NULL) {
 			printf("Test failed to detect odd count\n");
@@ -524,7 +524,7 @@ test_ring_negative_tests(void)
 		}
 
 		/* Test if ring size is exceeding the limit */
-		rp = test_ring_create("test_bad_ring_size", esize[i],
+		rp = test_ring_create("test_bad_ring_size", esizes[i],
 					RTE_RING_SZ_MASK + 1, SOCKET_ID_ANY, 0);
 		if (rp != NULL) {
 			printf("Test failed to detect limits\n");
@@ -541,12 +541,12 @@ test_ring_negative_tests(void)
 		/* Test to if a non-power of 2 count causes the create
 		 * function to fail correctly
 		 */
-		rp = test_ring_create("test_ring_count", esize[i], 4097,
+		rp = test_ring_create("test_ring_count", esizes[i], 4097,
 					SOCKET_ID_ANY, 0);
 		if (rp != NULL)
 			goto test_fail;
 
-		rp = test_ring_create("test_ring_negative", esize[i], RING_SIZE,
+		rp = test_ring_create("test_ring_negative", esizes[i], RING_SIZE,
 					SOCKET_ID_ANY,
 					RING_F_SP_ENQ | RING_F_SC_DEQ);
 		if (rp == NULL) {
@@ -562,7 +562,7 @@ test_ring_negative_tests(void)
 		/* Tests if it would always fail to create ring with an used
 		 * ring name.
 		 */
-		rt = test_ring_create("test_ring_negative", esize[i], RING_SIZE,
+		rt = test_ring_create("test_ring_negative", esizes[i], RING_SIZE,
 					SOCKET_ID_ANY, 0);
 		if (rt != NULL)
 			goto test_fail;
@@ -593,24 +593,24 @@ test_ring_burst_bulk_tests1(unsigned int test_idx)
 	int rand;
 	const unsigned int rsz = RING_SIZE - 1;
 
-	for (i = 0; i < RTE_DIM(esize); i++) {
+	for (i = 0; i < RTE_DIM(esizes); i++) {
 		test_ring_print_test_string(test_enqdeq_impl[test_idx].desc,
-			test_enqdeq_impl[test_idx].api_type, esize[i]);
+			test_enqdeq_impl[test_idx].api_type, esizes[i]);
 
 		/* Create the ring */
-		r = test_ring_create("test_ring_burst_bulk_tests", esize[i],
+		r = test_ring_create("test_ring_burst_bulk_tests", esizes[i],
 				RING_SIZE, SOCKET_ID_ANY,
 				test_enqdeq_impl[test_idx].create_flags);
 
 		/* alloc dummy object pointers */
-		src = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		src = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (src == NULL)
 			goto fail;
-		test_ring_mem_init(src, RING_SIZE * 2, esize[i]);
+		test_ring_mem_init(src, RING_SIZE * 2, esizes[i]);
 		cur_src = src;
 
 		/* alloc some room for copied objects */
-		dst = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		dst = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (dst == NULL)
 			goto fail;
 		cur_dst = dst;
@@ -622,16 +622,16 @@ test_ring_burst_bulk_tests1(unsigned int test_idx)
 			rand = RTE_MAX(rte_rand() % RING_SIZE, 1UL);
 			printf("%s: iteration %u, random shift: %u;\n",
 			    __func__, i, rand);
-			ret = test_ring_enq_impl(r, cur_src, esize[i], rand,
+			ret = test_ring_enq_impl(r, cur_src, esizes[i], rand,
 							test_idx);
 			TEST_RING_VERIFY(ret != 0, r, goto fail);
 
-			ret = test_ring_deq_impl(r, cur_dst, esize[i], rand,
+			ret = test_ring_deq_impl(r, cur_dst, esizes[i], rand,
 							test_idx);
 			TEST_RING_VERIFY(ret == rand, r, goto fail);
 
 			/* fill the ring */
-			ret = test_ring_enq_impl(r, cur_src, esize[i], rsz,
+			ret = test_ring_enq_impl(r, cur_src, esizes[i], rsz,
 							test_idx);
 			TEST_RING_VERIFY(ret != 0, r, goto fail);
 
@@ -641,7 +641,7 @@ test_ring_burst_bulk_tests1(unsigned int test_idx)
 			TEST_RING_VERIFY(rte_ring_empty(r) == 0, r, goto fail);
 
 			/* empty the ring */
-			ret = test_ring_deq_impl(r, cur_dst, esize[i], rsz,
+			ret = test_ring_deq_impl(r, cur_dst, esizes[i], rsz,
 							test_idx);
 			TEST_RING_VERIFY(ret == (int)rsz, r, goto fail);
 
@@ -652,8 +652,8 @@ test_ring_burst_bulk_tests1(unsigned int test_idx)
 
 			/* check data */
 			temp_sz = rsz * sizeof(void *);
-			if (esize[i] != -1)
-				temp_sz = rsz * esize[i];
+			if (esizes[i] != -1)
+				temp_sz = rsz * esizes[i];
 			TEST_RING_VERIFY(test_ring_mem_cmp(src, dst,
 						temp_sz) == 0, r, goto fail);
 		}
@@ -688,58 +688,58 @@ test_ring_burst_bulk_tests2(unsigned int test_idx)
 	int ret;
 	unsigned int i;
 
-	for (i = 0; i < RTE_DIM(esize); i++) {
+	for (i = 0; i < RTE_DIM(esizes); i++) {
 		test_ring_print_test_string(test_enqdeq_impl[test_idx].desc,
-			test_enqdeq_impl[test_idx].api_type, esize[i]);
+			test_enqdeq_impl[test_idx].api_type, esizes[i]);
 
 		/* Create the ring */
-		r = test_ring_create("test_ring_burst_bulk_tests", esize[i],
+		r = test_ring_create("test_ring_burst_bulk_tests", esizes[i],
 				RING_SIZE, SOCKET_ID_ANY,
 				test_enqdeq_impl[test_idx].create_flags);
 
 		/* alloc dummy object pointers */
-		src = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		src = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (src == NULL)
 			goto fail;
-		test_ring_mem_init(src, RING_SIZE * 2, esize[i]);
+		test_ring_mem_init(src, RING_SIZE * 2, esizes[i]);
 		cur_src = src;
 
 		/* alloc some room for copied objects */
-		dst = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		dst = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (dst == NULL)
 			goto fail;
 		cur_dst = dst;
 
 		printf("enqueue 1 obj\n");
-		ret = test_ring_enq_impl(r, cur_src, esize[i], 1, test_idx);
+		ret = test_ring_enq_impl(r, cur_src, esizes[i], 1, test_idx);
 		TEST_RING_VERIFY(ret == 1, r, goto fail);
-		cur_src = test_ring_inc_ptr(cur_src, esize[i], 1);
+		cur_src = test_ring_inc_ptr(cur_src, esizes[i], 1);
 
 		printf("enqueue 2 objs\n");
-		ret = test_ring_enq_impl(r, cur_src, esize[i], 2, test_idx);
+		ret = test_ring_enq_impl(r, cur_src, esizes[i], 2, test_idx);
 		TEST_RING_VERIFY(ret == 2, r, goto fail);
-		cur_src = test_ring_inc_ptr(cur_src, esize[i], 2);
+		cur_src = test_ring_inc_ptr(cur_src, esizes[i], 2);
 
 		printf("enqueue MAX_BULK objs\n");
-		ret = test_ring_enq_impl(r, cur_src, esize[i], MAX_BULK,
+		ret = test_ring_enq_impl(r, cur_src, esizes[i], MAX_BULK,
 						test_idx);
 		TEST_RING_VERIFY(ret == MAX_BULK, r, goto fail);
 
 		printf("dequeue 1 obj\n");
-		ret = test_ring_deq_impl(r, cur_dst, esize[i], 1, test_idx);
+		ret = test_ring_deq_impl(r, cur_dst, esizes[i], 1, test_idx);
 		TEST_RING_VERIFY(ret == 1, r, goto fail);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], 1);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], 1);
 
 		printf("dequeue 2 objs\n");
-		ret = test_ring_deq_impl(r, cur_dst, esize[i], 2, test_idx);
+		ret = test_ring_deq_impl(r, cur_dst, esizes[i], 2, test_idx);
 		TEST_RING_VERIFY(ret == 2, r, goto fail);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], 2);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], 2);
 
 		printf("dequeue MAX_BULK objs\n");
-		ret = test_ring_deq_impl(r, cur_dst, esize[i], MAX_BULK,
+		ret = test_ring_deq_impl(r, cur_dst, esizes[i], MAX_BULK,
 						test_idx);
 		TEST_RING_VERIFY(ret == MAX_BULK, r, goto fail);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], MAX_BULK);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], MAX_BULK);
 
 		/* check data */
 		TEST_RING_VERIFY(test_ring_mem_cmp(src, dst,
@@ -775,40 +775,40 @@ test_ring_burst_bulk_tests3(unsigned int test_idx)
 	int ret;
 	unsigned int i, j;
 
-	for (i = 0; i < RTE_DIM(esize); i++) {
+	for (i = 0; i < RTE_DIM(esizes); i++) {
 		test_ring_print_test_string(test_enqdeq_impl[test_idx].desc,
-			test_enqdeq_impl[test_idx].api_type, esize[i]);
+			test_enqdeq_impl[test_idx].api_type, esizes[i]);
 
 		/* Create the ring */
-		r = test_ring_create("test_ring_burst_bulk_tests", esize[i],
+		r = test_ring_create("test_ring_burst_bulk_tests", esizes[i],
 				RING_SIZE, SOCKET_ID_ANY,
 				test_enqdeq_impl[test_idx].create_flags);
 
 		/* alloc dummy object pointers */
-		src = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		src = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (src == NULL)
 			goto fail;
-		test_ring_mem_init(src, RING_SIZE * 2, esize[i]);
+		test_ring_mem_init(src, RING_SIZE * 2, esizes[i]);
 		cur_src = src;
 
 		/* alloc some room for copied objects */
-		dst = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		dst = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (dst == NULL)
 			goto fail;
 		cur_dst = dst;
 
 		printf("fill and empty the ring\n");
 		for (j = 0; j < RING_SIZE / MAX_BULK; j++) {
-			ret = test_ring_enq_impl(r, cur_src, esize[i], MAX_BULK,
+			ret = test_ring_enq_impl(r, cur_src, esizes[i], MAX_BULK,
 							test_idx);
 			TEST_RING_VERIFY(ret == MAX_BULK, r, goto fail);
-			cur_src = test_ring_inc_ptr(cur_src, esize[i],
+			cur_src = test_ring_inc_ptr(cur_src, esizes[i],
 								MAX_BULK);
 
-			ret = test_ring_deq_impl(r, cur_dst, esize[i], MAX_BULK,
+			ret = test_ring_deq_impl(r, cur_dst, esizes[i], MAX_BULK,
 							test_idx);
 			TEST_RING_VERIFY(ret == MAX_BULK, r, goto fail);
-			cur_dst = test_ring_inc_ptr(cur_dst, esize[i],
+			cur_dst = test_ring_inc_ptr(cur_dst, esizes[i],
 								MAX_BULK);
 		}
 
@@ -849,41 +849,41 @@ test_ring_burst_bulk_tests4(unsigned int test_idx)
 
 	api_type = test_enqdeq_impl[test_idx].api_type;
 
-	for (i = 0; i < RTE_DIM(esize); i++) {
+	for (i = 0; i < RTE_DIM(esizes); i++) {
 		test_ring_print_test_string(test_enqdeq_impl[test_idx].desc,
-			test_enqdeq_impl[test_idx].api_type, esize[i]);
+			test_enqdeq_impl[test_idx].api_type, esizes[i]);
 
 		/* Create the ring */
-		r = test_ring_create("test_ring_burst_bulk_tests", esize[i],
+		r = test_ring_create("test_ring_burst_bulk_tests", esizes[i],
 				RING_SIZE, SOCKET_ID_ANY,
 				test_enqdeq_impl[test_idx].create_flags);
 
 		/* alloc dummy object pointers */
-		src = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		src = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (src == NULL)
 			goto fail;
-		test_ring_mem_init(src, RING_SIZE * 2, esize[i]);
+		test_ring_mem_init(src, RING_SIZE * 2, esizes[i]);
 		cur_src = src;
 
 		/* alloc some room for copied objects */
-		dst = test_ring_calloc(RING_SIZE * 2, esize[i]);
+		dst = test_ring_calloc(RING_SIZE * 2, esizes[i]);
 		if (dst == NULL)
 			goto fail;
 		cur_dst = dst;
 
 		printf("Test enqueue without enough memory space\n");
 		for (j = 0; j < (RING_SIZE/MAX_BULK - 1); j++) {
-			ret = test_ring_enq_impl(r, cur_src, esize[i], MAX_BULK,
+			ret = test_ring_enq_impl(r, cur_src, esizes[i], MAX_BULK,
 							test_idx);
 			TEST_RING_VERIFY(ret == MAX_BULK, r, goto fail);
-			cur_src = test_ring_inc_ptr(cur_src, esize[i],
+			cur_src = test_ring_inc_ptr(cur_src, esizes[i],
 								MAX_BULK);
 		}
 
 		printf("Enqueue 2 objects, free entries = MAX_BULK - 2\n");
-		ret = test_ring_enq_impl(r, cur_src, esize[i], 2, test_idx);
+		ret = test_ring_enq_impl(r, cur_src, esizes[i], 2, test_idx);
 		TEST_RING_VERIFY(ret == 2, r, goto fail);
-		cur_src = test_ring_inc_ptr(cur_src, esize[i], 2);
+		cur_src = test_ring_inc_ptr(cur_src, esizes[i], 2);
 
 		printf("Enqueue the remaining entries = MAX_BULK - 3\n");
 		/* Bulk APIs enqueue exact number of elements */
@@ -892,42 +892,42 @@ test_ring_burst_bulk_tests4(unsigned int test_idx)
 		else
 			num_elems = MAX_BULK;
 		/* Always one free entry left */
-		ret = test_ring_enq_impl(r, cur_src, esize[i], num_elems,
+		ret = test_ring_enq_impl(r, cur_src, esizes[i], num_elems,
 						test_idx);
 		TEST_RING_VERIFY(ret == MAX_BULK - 3, r, goto fail);
-		cur_src = test_ring_inc_ptr(cur_src, esize[i], MAX_BULK - 3);
+		cur_src = test_ring_inc_ptr(cur_src, esizes[i], MAX_BULK - 3);
 
 		printf("Test if ring is full\n");
 		TEST_RING_VERIFY(rte_ring_full(r) == 1, r, goto fail);
 
 		printf("Test enqueue for a full entry\n");
-		ret = test_ring_enq_impl(r, cur_src, esize[i], MAX_BULK,
+		ret = test_ring_enq_impl(r, cur_src, esizes[i], MAX_BULK,
 						test_idx);
 		TEST_RING_VERIFY(ret == 0, r, goto fail);
 
 		printf("Test dequeue without enough objects\n");
 		for (j = 0; j < RING_SIZE / MAX_BULK - 1; j++) {
-			ret = test_ring_deq_impl(r, cur_dst, esize[i], MAX_BULK,
+			ret = test_ring_deq_impl(r, cur_dst, esizes[i], MAX_BULK,
 							test_idx);
 			TEST_RING_VERIFY(ret == MAX_BULK, r, goto fail);
-			cur_dst = test_ring_inc_ptr(cur_dst, esize[i],
+			cur_dst = test_ring_inc_ptr(cur_dst, esizes[i],
 								MAX_BULK);
 		}
 
 		/* Available memory space for the exact MAX_BULK entries */
-		ret = test_ring_deq_impl(r, cur_dst, esize[i], 2, test_idx);
+		ret = test_ring_deq_impl(r, cur_dst, esizes[i], 2, test_idx);
 		TEST_RING_VERIFY(ret == 2, r, goto fail);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], 2);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], 2);
 
 		/* Bulk APIs enqueue exact number of elements */
 		if ((api_type & TEST_RING_ELEM_BULK) == TEST_RING_ELEM_BULK)
 			num_elems = MAX_BULK - 3;
 		else
 			num_elems = MAX_BULK;
-		ret = test_ring_deq_impl(r, cur_dst, esize[i], num_elems,
+		ret = test_ring_deq_impl(r, cur_dst, esizes[i], num_elems,
 						test_idx);
 		TEST_RING_VERIFY(ret == MAX_BULK - 3, r, goto fail);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], MAX_BULK - 3);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], MAX_BULK - 3);
 
 		printf("Test if ring is empty\n");
 		/* Check if ring is empty */
@@ -966,8 +966,8 @@ test_ring_basic_ex(void)
 	struct rte_ring *rp = NULL;
 	void **src = NULL, **cur_src = NULL, **dst = NULL, **cur_dst = NULL;
 
-	for (i = 0; i < RTE_DIM(esize); i++) {
-		rp = test_ring_create("test_ring_basic_ex", esize[i], RING_SIZE,
+	for (i = 0; i < RTE_DIM(esizes); i++) {
+		rp = test_ring_create("test_ring_basic_ex", esizes[i], RING_SIZE,
 					SOCKET_ID_ANY,
 					RING_F_SP_ENQ | RING_F_SC_DEQ);
 		if (rp == NULL) {
@@ -976,16 +976,16 @@ test_ring_basic_ex(void)
 		}
 
 		/* alloc dummy object pointers */
-		src = test_ring_calloc(RING_SIZE, esize[i]);
+		src = test_ring_calloc(RING_SIZE, esizes[i]);
 		if (src == NULL) {
 			printf("%s: failed to alloc src memory\n", __func__);
 			goto fail_test;
 		}
-		test_ring_mem_init(src, RING_SIZE, esize[i]);
+		test_ring_mem_init(src, RING_SIZE, esizes[i]);
 		cur_src = src;
 
 		/* alloc some room for copied objects */
-		dst = test_ring_calloc(RING_SIZE, esize[i]);
+		dst = test_ring_calloc(RING_SIZE, esizes[i]);
 		if (dst == NULL) {
 			printf("%s: failed to alloc dst memory\n", __func__);
 			goto fail_test;
@@ -1001,19 +1001,19 @@ test_ring_basic_ex(void)
 			rte_ring_free_count(rp));
 
 		for (j = 0; j < RING_SIZE - 1; j++) {
-			ret = test_ring_enqueue(rp, cur_src, esize[i], 1,
+			ret = test_ring_enqueue(rp, cur_src, esizes[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 			TEST_RING_VERIFY(ret == 0, rp, goto fail_test);
-			cur_src = test_ring_inc_ptr(cur_src, esize[i], 1);
+			cur_src = test_ring_inc_ptr(cur_src, esizes[i], 1);
 		}
 
 		TEST_RING_VERIFY(rte_ring_full(rp) == 1, rp, goto fail_test);
 
 		for (j = 0; j < RING_SIZE - 1; j++) {
-			ret = test_ring_dequeue(rp, cur_dst, esize[i], 1,
+			ret = test_ring_dequeue(rp, cur_dst, esizes[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 			TEST_RING_VERIFY(ret == 0, rp, goto fail_test);
-			cur_dst = test_ring_inc_ptr(cur_dst, esize[i], 1);
+			cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], 1);
 		}
 
 		TEST_RING_VERIFY(rte_ring_empty(rp) == 1, rp, goto fail_test);
@@ -1034,25 +1034,25 @@ test_ring_basic_ex(void)
 		cur_dst = dst;
 
 		/* Covering the ring burst operation */
-		ret = test_ring_enqueue(rp, cur_src, esize[i], 2,
+		ret = test_ring_enqueue(rp, cur_src, esizes[i], 2,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_BURST);
 		TEST_RING_VERIFY(ret == 2, rp, goto fail_test);
-		cur_src = test_ring_inc_ptr(cur_src, esize[i], 2);
+		cur_src = test_ring_inc_ptr(cur_src, esizes[i], 2);
 
-		ret = test_ring_dequeue(rp, cur_dst, esize[i], 2,
+		ret = test_ring_dequeue(rp, cur_dst, esizes[i], 2,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_BURST);
 		TEST_RING_VERIFY(ret == 2, rp, goto fail_test);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], 2);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], 2);
 
 		/* Covering the ring bulk operation */
-		ret = test_ring_enqueue(rp, cur_src, esize[i], 2,
+		ret = test_ring_enqueue(rp, cur_src, esizes[i], 2,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_BULK);
 		TEST_RING_VERIFY(ret == 2, rp, goto fail_test);
 
-		ret = test_ring_dequeue(rp, cur_dst, esize[i], 2,
+		ret = test_ring_dequeue(rp, cur_dst, esizes[i], 2,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_BULK);
 		TEST_RING_VERIFY(ret == 2, rp, goto fail_test);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], 2);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], 2);
 
 		/* check data */
 		TEST_RING_VERIFY(test_ring_mem_cmp(src, dst,
@@ -1089,19 +1089,19 @@ test_ring_with_exact_size(void)
 	unsigned int i, j;
 	int ret = -1;
 
-	for (i = 0; i < RTE_DIM(esize); i++) {
+	for (i = 0; i < RTE_DIM(esizes); i++) {
 		test_ring_print_test_string("Test exact size ring",
 				TEST_RING_IGNORE_API_TYPE,
-				esize[i]);
+				esizes[i]);
 
-		std_r = test_ring_create("std", esize[i], ring_sz,
+		std_r = test_ring_create("std", esizes[i], ring_sz,
 					rte_socket_id(),
 					RING_F_SP_ENQ | RING_F_SC_DEQ);
 		if (std_r == NULL) {
 			printf("%s: error, can't create std ring\n", __func__);
 			goto test_fail;
 		}
-		exact_sz_r = test_ring_create("exact sz", esize[i], ring_sz,
+		exact_sz_r = test_ring_create("exact sz", esizes[i], ring_sz,
 				rte_socket_id(),
 				RING_F_SP_ENQ | RING_F_SC_DEQ |
 				RING_F_EXACT_SZ);
@@ -1114,14 +1114,14 @@ test_ring_with_exact_size(void)
 		/* alloc object pointers. Allocate one extra object
 		 * and create an unaligned address.
 		 */
-		src_orig = test_ring_calloc(17, esize[i]);
+		src_orig = test_ring_calloc(17, esizes[i]);
 		if (src_orig == NULL)
 			goto test_fail;
-		test_ring_mem_init(src_orig, 17, esize[i]);
+		test_ring_mem_init(src_orig, 17, esizes[i]);
 		src = (void **)((uintptr_t)src_orig + 1);
 		cur_src = src;
 
-		dst_orig = test_ring_calloc(17, esize[i]);
+		dst_orig = test_ring_calloc(17, esizes[i]);
 		if (dst_orig == NULL)
 			goto test_fail;
 		dst = (void **)((uintptr_t)dst_orig + 1);
@@ -1140,26 +1140,26 @@ test_ring_with_exact_size(void)
 		 * than the standard ring. (16 vs 15 elements)
 		 */
 		for (j = 0; j < ring_sz - 1; j++) {
-			ret = test_ring_enqueue(std_r, cur_src, esize[i], 1,
+			ret = test_ring_enqueue(std_r, cur_src, esizes[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 			TEST_RING_VERIFY(ret == 0, std_r, goto test_fail);
-			ret = test_ring_enqueue(exact_sz_r, cur_src, esize[i], 1,
+			ret = test_ring_enqueue(exact_sz_r, cur_src, esizes[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 			TEST_RING_VERIFY(ret == 0, exact_sz_r, goto test_fail);
-			cur_src = test_ring_inc_ptr(cur_src, esize[i], 1);
+			cur_src = test_ring_inc_ptr(cur_src, esizes[i], 1);
 		}
-		ret = test_ring_enqueue(std_r, cur_src, esize[i], 1,
+		ret = test_ring_enqueue(std_r, cur_src, esizes[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 		TEST_RING_VERIFY(ret == -ENOBUFS, std_r, goto test_fail);
-		ret = test_ring_enqueue(exact_sz_r, cur_src, esize[i], 1,
+		ret = test_ring_enqueue(exact_sz_r, cur_src, esizes[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 		TEST_RING_VERIFY(ret != -ENOBUFS, exact_sz_r, goto test_fail);
 
 		/* check that dequeue returns the expected number of elements */
-		ret = test_ring_dequeue(exact_sz_r, cur_dst, esize[i], ring_sz,
+		ret = test_ring_dequeue(exact_sz_r, cur_dst, esizes[i], ring_sz,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_BURST);
 		TEST_RING_VERIFY(ret == (int)ring_sz, exact_sz_r, goto test_fail);
-		cur_dst = test_ring_inc_ptr(cur_dst, esize[i], ring_sz);
+		cur_dst = test_ring_inc_ptr(cur_dst, esizes[i], ring_sz);
 
 		/* check that the capacity function returns expected value */
 		TEST_RING_VERIFY(rte_ring_get_capacity(exact_sz_r) == ring_sz,
-- 
2.47.2

Re: [RFC 1/8] test/ring: avoid shadow variable usage

[Bruce Richardson]

On Wed, Aug 27, 2025 at 04:14:04PM -0700, Stephen Hemminger wrote:
> The code had a global array "esize" and also local variable
> with same name. This would cause warnings if -Wshadow was enabled.
> Fix by renaming the array to "esizes".
> 
> Fixes: a9fe152363e2 ("test/ring: add custom element size functional tests")
> Cc: honnappa.nagarahalli@arm.com
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  app/test/test_ring.c | 190 +++++++++++++++++++++----------------------
>  1 file changed, 95 insertions(+), 95 deletions(-)
> 
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

[RFC 2/8] test/table: replace conflicting variable name

[Stephen Hemminger]

The variable name table_id is used in several places causing
warnings if -Wshadow is enabled. Rename it to table_ids.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/test/test_table.c          |  2 +-
 app/test/test_table.h          |  2 +-
 app/test/test_table_acl.c      | 28 ++++++++++++++--------------
 app/test/test_table_pipeline.c | 22 +++++++++++-----------
 4 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/app/test/test_table.c b/app/test/test_table.c
index 27d2407517..6da0012944 100644
--- a/app/test/test_table.c
+++ b/app/test/test_table.c
@@ -33,7 +33,7 @@ struct rte_mempool *pool = NULL;
 uint32_t port_in_id[N_PORTS];
 uint32_t port_out_id[N_PORTS];
 uint32_t port_out_id_type[3];
-uint32_t table_id[N_PORTS*2];
+uint32_t table_ids[N_PORTS*2];
 uint64_t override_hit_mask = 0xFFFFFFFF;
 uint64_t override_miss_mask = 0xFFFFFFFF;
 uint64_t non_reserved_actions_hit = 0;
diff --git a/app/test/test_table.h b/app/test/test_table.h
index 209bdbff2c..b8fdd98281 100644
--- a/app/test/test_table.h
+++ b/app/test/test_table.h
@@ -120,7 +120,7 @@ extern struct rte_mempool *pool;
 extern uint32_t port_in_id[N_PORTS];
 extern uint32_t port_out_id[N_PORTS];
 extern uint32_t port_out_id_type[3];
-extern uint32_t table_id[N_PORTS*2];
+extern uint32_t table_ids[N_PORTS*2];
 extern uint64_t override_hit_mask;
 extern uint64_t override_miss_mask;
 extern uint64_t non_reserved_actions_hit;
diff --git a/app/test/test_table_acl.c b/app/test/test_table_acl.c
index dff9bddfb9..4076c513fb 100644
--- a/app/test/test_table_acl.c
+++ b/app/test/test_table_acl.c
@@ -427,14 +427,14 @@ setup_acl_pipeline(void)
 		table_params.ops = &rte_table_acl_ops;
 		table_params.arg_create = &acl_params;
 
-		if (rte_pipeline_table_create(p, &table_params, &table_id[i])) {
+		if (rte_pipeline_table_create(p, &table_params, &table_ids[i])) {
 			rte_panic("Unable to configure table %u\n", i);
 			goto fail;
 		}
 
 		if (connect_miss_action_to_table) {
 			if (rte_pipeline_table_create(p, &table_params,
-				&table_id[i+2])) {
+				&table_ids[i+2])) {
 				rte_panic("Unable to configure table %u\n", i);
 				goto fail;
 			}
@@ -443,10 +443,10 @@ setup_acl_pipeline(void)
 
 	for (i = 0; i < N_PORTS; i++) {
 		if (rte_pipeline_port_in_connect_to_table(p, port_in_id[i],
-			table_id[i])) {
+			table_ids[i])) {
 			rte_panic("Unable to connect input port %u to "
 				"table %u\n",
-				port_in_id[i],  table_id[i]);
+				port_in_id[i],  table_ids[i]);
 			goto fail;
 		}
 	}
@@ -485,11 +485,11 @@ setup_acl_pipeline(void)
 			table_entries_ptr[n] = &entries_ptr[n];
 		}
 
-		ret = rte_pipeline_table_entry_add_bulk(p, table_id[i],
+		ret = rte_pipeline_table_entry_add_bulk(p, table_ids[i],
 				(void **)key_array, table_entries, 5, key_found, table_entries_ptr);
 		if (ret < 0) {
 			rte_panic("Add entry bulk to table %u failed (%d)\n",
-				table_id[i], ret);
+				table_ids[i], ret);
 			goto fail;
 		}
 	}
@@ -519,11 +519,11 @@ setup_acl_pipeline(void)
 			}
 		}
 
-		ret = rte_pipeline_table_entry_delete_bulk(p, table_id[i],
+		ret = rte_pipeline_table_entry_delete_bulk(p, table_ids[i],
 			(void **)key_array, 5, key_found, table_entries);
 		if (ret < 0) {
 			rte_panic("Delete bulk entries from table %u failed (%d)\n",
-				table_id[i], ret);
+				table_ids[i], ret);
 			goto fail;
 		} else
 			printf("Bulk deleted rules.\n");
@@ -555,12 +555,12 @@ setup_acl_pipeline(void)
 
 			rule_params.priority = RTE_ACL_MAX_PRIORITY - n;
 
-			ret = rte_pipeline_table_entry_add(p, table_id[i],
+			ret = rte_pipeline_table_entry_add(p, table_ids[i],
 				&rule_params,
 				&table_entry, &key_found, &entry_ptr);
 			if (ret < 0) {
 				rte_panic("Add entry to table %u failed (%d)\n",
-					table_id[i], ret);
+					table_ids[i], ret);
 				goto fail;
 			}
 		}
@@ -581,11 +581,11 @@ setup_acl_pipeline(void)
 			delete_params = (struct
 				rte_pipeline_table_acl_rule_delete_params *)
 				&(rule_params.field_value[0]);
-			ret = rte_pipeline_table_entry_delete(p, table_id[i],
+			ret = rte_pipeline_table_entry_delete(p, table_ids[i],
 				delete_params, &key_found, NULL);
 			if (ret < 0) {
 				rte_panic("Add entry to table %u failed (%d)\n",
-					table_id[i], ret);
+					table_ids[i], ret);
 				goto fail;
 			} else
 				printf("Deleted Rule.\n");
@@ -607,12 +607,12 @@ setup_acl_pipeline(void)
 
 			rule_params.priority = RTE_ACL_MAX_PRIORITY - n;
 
-			ret = rte_pipeline_table_entry_add(p, table_id[i],
+			ret = rte_pipeline_table_entry_add(p, table_ids[i],
 				&rule_params,
 				&table_entry, &key_found, &entry_ptr);
 			if (ret < 0) {
 				rte_panic("Add entry to table %u failed (%d)\n",
-					table_id[i], ret);
+					table_ids[i], ret);
 				goto fail;
 			}
 		}
diff --git a/app/test/test_table_pipeline.c b/app/test/test_table_pipeline.c
index 960f730cf2..318ef1ac6c 100644
--- a/app/test/test_table_pipeline.c
+++ b/app/test/test_table_pipeline.c
@@ -311,14 +311,14 @@ setup_pipeline(int test_type)
 				.action_data_size = 0,
 		};
 
-		if (rte_pipeline_table_create(p, &table_params, &table_id[i])) {
+		if (rte_pipeline_table_create(p, &table_params, &table_ids[i])) {
 			rte_panic("Unable to configure table %u\n", i);
 			goto fail;
 		}
 
 		if (connect_miss_action_to_table)
 			if (rte_pipeline_table_create(p, &table_params,
-				&table_id[i+2])) {
+				&table_ids[i+2])) {
 				rte_panic("Unable to configure table %u\n", i);
 				goto fail;
 			}
@@ -326,9 +326,9 @@ setup_pipeline(int test_type)
 
 	for (i = 0; i < N_PORTS; i++)
 		if (rte_pipeline_port_in_connect_to_table(p, port_in_id[i],
-			table_id[i])) {
+			table_ids[i])) {
 			rte_panic("Unable to connect input port %u to "
-				"table %u\n", port_in_id[i],  table_id[i]);
+				"table %u\n", port_in_id[i],  table_ids[i]);
 			goto fail;
 		}
 
@@ -344,20 +344,20 @@ setup_pipeline(int test_type)
 		if (connect_miss_action_to_table) {
 			printf("Setting first table to output to next table\n");
 			default_entry.action = RTE_PIPELINE_ACTION_TABLE;
-			default_entry.table_id = table_id[i+2];
+			default_entry.table_id = table_ids[i+2];
 		}
 
 		/* Add the default action for the table. */
-		ret = rte_pipeline_table_default_entry_add(p, table_id[i],
+		ret = rte_pipeline_table_default_entry_add(p, table_ids[i],
 			&default_entry, &default_entry_ptr);
 		if (ret < 0) {
 			rte_panic("Unable to add default entry to table %u "
-				"code %d\n", table_id[i], ret);
+				"code %d\n", table_ids[i], ret);
 			goto fail;
 		} else
 			printf("Added default entry to table id %d with "
 				"action %x\n",
-				table_id[i], default_entry.action);
+				table_ids[i], default_entry.action);
 
 		if (connect_miss_action_to_table) {
 			/* We create a second table so the first can pass
@@ -370,17 +370,17 @@ setup_pipeline(int test_type)
 
 			/* Add the default action for the table. */
 			ret = rte_pipeline_table_default_entry_add(p,
-				table_id[i+2],
+				table_ids[i+2],
 				&default_entry, &default_entry_ptr);
 			if (ret < 0) {
 				rte_panic("Unable to add default entry to "
 					"table %u code %d\n",
-					table_id[i], ret);
+					table_ids[i], ret);
 				goto fail;
 			} else
 				printf("Added default entry to table id %d "
 					"with action %x\n",
-					table_id[i], default_entry.action);
+					table_ids[i], default_entry.action);
 		}
 	}
 
-- 
2.47.2

[RFC 3/8] eal: add macro to disable shadow warnings

[Stephen Hemminger]

When using constructs like:
	RTE_MIN(x, RTE_MIN(y, z))
the compiler would generate warnings about overlapping definitions
of the variables in the macro. This is safe so add pragma support
to silence the problem.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/eal/include/rte_common.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/lib/eal/include/rte_common.h b/lib/eal/include/rte_common.h
index 9e7d84f929..34862cc97a 100644
--- a/lib/eal/include/rte_common.h
+++ b/lib/eal/include/rte_common.h
@@ -210,6 +210,15 @@ typedef uint16_t unaligned_uint16_t;
 #define __rte_diagnostic_ignored_wcast_qual
 #endif
 
+/**
+ * Macro to disable compiler warnings about shadow declaration.
+ */
+#if !defined(RTE_TOOLCHAIN_MSVC)
+#define __rte_diagnostic_ignored_shadow _Pragma("GCC diagnostic ignored \"-Wshadow\"")
+#else
+#define __rte_diagnostic_ignored_shadow
+#endif
+
 /**
  * Mark a function or variable to a weak reference.
  */
@@ -791,12 +800,17 @@ __extension__ typedef uint64_t RTE_MARKER64[0];
 
 /**
  * Macro to return the minimum of two numbers
+ * Need to disable warnings about shadowed variables to allow
+ * for nested usage.
  */
 #define RTE_MIN(a, b) \
 	__extension__ ({ \
+		__rte_diagnostic_push \
+		__rte_diagnostic_ignored_shadow \
 		typeof (a) _a = (a); \
 		typeof (b) _b = (b); \
 		_a < _b ? _a : _b; \
+		__rte_diagnostic_pop \
 	})
 
 /**
@@ -814,9 +828,12 @@ __extension__ typedef uint64_t RTE_MARKER64[0];
  */
 #define RTE_MAX(a, b) \
 	__extension__ ({ \
+		__rte_diagnostic_push \
+		__rte_diagnostic_ignored_shadow \
 		typeof (a) _a = (a); \
 		typeof (b) _b = (b); \
 		_a > _b ? _a : _b; \
+		__rte_diagnostic_pop \
 	})
 
 /**
-- 
2.47.2

Re: [RFC 3/8] eal: add macro to disable shadow warnings

[Bruce Richardson]

On Wed, Aug 27, 2025 at 04:14:06PM -0700, Stephen Hemminger wrote:
> When using constructs like:
> 	RTE_MIN(x, RTE_MIN(y, z))
> the compiler would generate warnings about overlapping definitions
> of the variables in the macro. This is safe so add pragma support
> to silence the problem.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

[RFC 4/8] eal: avoid shadowed variable aligned_end

[Stephen Hemminger]

Fix instance where variable was being shadowed by
using a new name.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/eal/common/malloc_heap.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/eal/common/malloc_heap.c b/lib/eal/common/malloc_heap.c
index 13a56e490e..602266fba0 100644
--- a/lib/eal/common/malloc_heap.c
+++ b/lib/eal/common/malloc_heap.c
@@ -1044,7 +1044,7 @@ malloc_heap_free(struct malloc_elem *elem)
 	/* if we unmapped some memory, we need to do additional work for ASan */
 	if (unmapped) {
 		void *asan_end = RTE_PTR_ADD(asan_ptr, asan_data_len);
-		void *aligned_end = RTE_PTR_ADD(aligned_start, aligned_len);
+		void *asan_aligned = RTE_PTR_ADD(aligned_start, aligned_len);
 		void *aligned_trailer = RTE_PTR_SUB(aligned_start,
 				MALLOC_ELEM_TRAILER_LEN);
 
@@ -1064,8 +1064,8 @@ malloc_heap_free(struct malloc_elem *elem)
 		 * unmapped space that was marked as freezone for ASan, we need
 		 * to mark the malloc header as available.
 		 */
-		if (asan_end > aligned_end)
-			asan_set_zone(aligned_end, MALLOC_ELEM_HEADER_LEN, 0x00);
+		if (asan_end > asan_aligned)
+			asan_set_zone(asan_aligned, MALLOC_ELEM_HEADER_LEN, 0x00);
 
 		/* if there's space before unmapped memory, mark as available */
 		if (asan_ptr < aligned_start)
-- 
2.47.2

[RFC 5/8] eal: avoid shadowed variables in trace code

[Stephen Hemminger]

The trace code had a global variable and local variable with
same name. Rename the globals to get rid of warning.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/eal/common/eal_common_trace.c | 42 +++++++++++++++----------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/lib/eal/common/eal_common_trace.c b/lib/eal/common/eal_common_trace.c
index be1f78a68d..d3cacfb47c 100644
--- a/lib/eal/common/eal_common_trace.c
+++ b/lib/eal/common/eal_common_trace.c
@@ -24,12 +24,12 @@ RTE_DEFINE_PER_LCORE(void *, trace_mem);
 static RTE_DEFINE_PER_LCORE(char *, ctf_field);
 
 static struct trace_point_head tp_list = STAILQ_HEAD_INITIALIZER(tp_list);
-static struct trace trace = { .args = STAILQ_HEAD_INITIALIZER(trace.args), };
+static struct trace tr_obj = { .args = STAILQ_HEAD_INITIALIZER(tr_obj.args), };
 
 struct trace *
 trace_obj_get(void)
 {
-	return &trace;
+	return &tr_obj;
 }
 
 struct trace_point_head *
@@ -47,12 +47,12 @@ eal_trace_init(void)
 	RTE_BUILD_BUG_ON((offsetof(struct __rte_trace_header, mem) % 8) != 0);
 
 	/* One of the trace point registration failed */
-	if (trace.register_errno) {
-		rte_errno = trace.register_errno;
+	if (tr_obj.register_errno) {
+		rte_errno = tr_obj.register_errno;
 		goto fail;
 	}
 
-	rte_spinlock_init(&trace.lock);
+	rte_spinlock_init(&tr_obj.lock);
 
 	/* Is duplicate trace name registered */
 	if (trace_has_duplicate_entry())
@@ -75,10 +75,10 @@ eal_trace_init(void)
 		goto free_meta;
 
 	/* Apply global configurations */
-	STAILQ_FOREACH(arg, &trace.args, next)
+	STAILQ_FOREACH(arg, &tr_obj.args, next)
 		trace_args_apply(arg->val);
 
-	rte_trace_mode_set(trace.mode);
+	rte_trace_mode_set(tr_obj.mode);
 
 	return 0;
 
@@ -101,7 +101,7 @@ RTE_EXPORT_EXPERIMENTAL_SYMBOL(rte_trace_is_enabled, 20.05)
 bool
 rte_trace_is_enabled(void)
 {
-	return rte_atomic_load_explicit(&trace.status, rte_memory_order_acquire) != 0;
+	return rte_atomic_load_explicit(&tr_obj.status, rte_memory_order_acquire) != 0;
 }
 
 static void
@@ -124,20 +124,20 @@ rte_trace_mode_set(enum rte_trace_mode mode)
 	STAILQ_FOREACH(tp, &tp_list, next)
 		trace_mode_set(tp->handle, mode);
 
-	trace.mode = mode;
+	tr_obj.mode = mode;
 }
 
 RTE_EXPORT_EXPERIMENTAL_SYMBOL(rte_trace_mode_get, 20.05)
 enum
 rte_trace_mode rte_trace_mode_get(void)
 {
-	return trace.mode;
+	return tr_obj.mode;
 }
 
 static bool
 trace_point_is_invalid(rte_trace_point_t *t)
 {
-	return (t == NULL) || (trace_id_get(t) >= trace.nb_trace_points);
+	return (t == NULL) || (trace_id_get(t) >= tr_obj.nb_trace_points);
 }
 
 RTE_EXPORT_EXPERIMENTAL_SYMBOL(rte_trace_point_is_enabled, 20.05)
@@ -165,7 +165,7 @@ rte_trace_point_enable(rte_trace_point_t *t)
 	prev = rte_atomic_fetch_or_explicit(t, __RTE_TRACE_FIELD_ENABLE_MASK,
 		rte_memory_order_release);
 	if ((prev & __RTE_TRACE_FIELD_ENABLE_MASK) == 0)
-		rte_atomic_fetch_add_explicit(&trace.status, 1, rte_memory_order_release);
+		rte_atomic_fetch_add_explicit(&tr_obj.status, 1, rte_memory_order_release);
 	return 0;
 }
 
@@ -181,7 +181,7 @@ rte_trace_point_disable(rte_trace_point_t *t)
 	prev = rte_atomic_fetch_and_explicit(t, ~__RTE_TRACE_FIELD_ENABLE_MASK,
 		rte_memory_order_release);
 	if ((prev & __RTE_TRACE_FIELD_ENABLE_MASK) != 0)
-		rte_atomic_fetch_sub_explicit(&trace.status, 1, rte_memory_order_release);
+		rte_atomic_fetch_sub_explicit(&tr_obj.status, 1, rte_memory_order_release);
 	return 0;
 }
 
@@ -295,7 +295,7 @@ RTE_EXPORT_EXPERIMENTAL_SYMBOL(rte_trace_dump, 20.05)
 void
 rte_trace_dump(FILE *f)
 {
-	struct trace_point_head *tp_list = trace_list_head_get();
+	struct trace_point_head *tp_head = trace_list_head_get();
 	struct trace *trace = trace_obj_get();
 	struct trace_point *tp;
 
@@ -310,7 +310,7 @@ rte_trace_dump(FILE *f)
 
 	trace_lcore_mem_dump(f);
 	fprintf(f, "\nTrace point info\n----------------\n");
-	STAILQ_FOREACH(tp, tp_list, next)
+	STAILQ_FOREACH(tp, tp_head, next)
 		trace_point_dump(f, tp);
 }
 
@@ -508,7 +508,7 @@ __rte_trace_point_register(rte_trace_point_t *handle, const char *name,
 	}
 
 	/* Are we running out of space to store trace points? */
-	if (trace.nb_trace_points > UINT16_MAX) {
+	if (tr_obj.nb_trace_points > UINT16_MAX) {
 		trace_err("trace point exceeds the max count");
 		rte_errno = ENOSPC;
 		goto fail;
@@ -534,10 +534,10 @@ __rte_trace_point_register(rte_trace_point_t *handle, const char *name,
 
 	/* Form the trace handle */
 	*handle = sz;
-	*handle |= trace.nb_trace_points << __RTE_TRACE_FIELD_ID_SHIFT;
-	trace_mode_set(handle, trace.mode);
+	*handle |= tr_obj.nb_trace_points << __RTE_TRACE_FIELD_ID_SHIFT;
+	trace_mode_set(handle, tr_obj.mode);
 
-	trace.nb_trace_points++;
+	tr_obj.nb_trace_points++;
 	tp->handle = handle;
 
 	/* Add the trace point at tail */
@@ -548,8 +548,8 @@ __rte_trace_point_register(rte_trace_point_t *handle, const char *name,
 	return 0;
 
 fail:
-	if (trace.register_errno == 0)
-		trace.register_errno = rte_errno;
+	if (tr_obj.register_errno == 0)
+		tr_obj.register_errno = rte_errno;
 
 	return -rte_errno;
 }
-- 
2.47.2

[RFC 6/8] ethdev: avoid shadowed variable warnings

[Stephen Hemminger]

With shadow warnings enabled there were a couple of cases
to fix. One was simple reuse of 'ret', other was overlap
between type and variable name.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/ethdev/ethdev_driver.c | 2 +-
 lib/ethdev/ethdev_driver.h | 6 +++---
 lib/ethdev/rte_ethdev.c    | 1 -
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/lib/ethdev/ethdev_driver.c b/lib/ethdev/ethdev_driver.c
index ec0c1e1176..11ffaa2219 100644
--- a/lib/ethdev/ethdev_driver.c
+++ b/lib/ethdev/ethdev_driver.c
@@ -295,7 +295,7 @@ RTE_EXPORT_INTERNAL_SYMBOL(rte_eth_dev_create)
 int
 rte_eth_dev_create(struct rte_device *device, const char *name,
 	size_t priv_data_size,
-	ethdev_bus_specific_init ethdev_bus_specific_init,
+	ethdev_bus_specific_init_t ethdev_bus_specific_init,
 	void *bus_init_params,
 	ethdev_init_t ethdev_init, void *init_params)
 {
diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h
index 2b4d2ae9c3..4c2f2e3489 100644
--- a/lib/ethdev/ethdev_driver.h
+++ b/lib/ethdev/ethdev_driver.h
@@ -1998,8 +1998,8 @@ rte_eth_devargs_parse(const char *devargs, struct rte_eth_devargs *eth_devargs,
 
 
 typedef int (*ethdev_init_t)(struct rte_eth_dev *ethdev, void *init_params);
-typedef int (*ethdev_bus_specific_init)(struct rte_eth_dev *ethdev,
-	void *bus_specific_init_params);
+typedef int (*ethdev_bus_specific_init_t)(struct rte_eth_dev *ethdev,
+					  void *bus_specific_init_params);
 
 /**
  * PMD helper function for the creation of a new ethdev ports.
@@ -2026,7 +2026,7 @@ __rte_internal
 int
 rte_eth_dev_create(struct rte_device *device, const char *name,
 	size_t priv_data_size,
-	ethdev_bus_specific_init bus_specific_init, void *bus_init_params,
+	ethdev_bus_specific_init_t bus_specific_init, void *bus_init_params,
 	ethdev_init_t ethdev_init, void *init_params);
 
 
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index dd7c00bc94..9934e48415 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -2468,7 +2468,6 @@ rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id,
 	if (local_conf.offloads & RTE_ETH_RX_OFFLOAD_TCP_LRO) {
 		uint32_t overhead_len;
 		uint32_t max_rx_pktlen;
-		int ret;
 
 		overhead_len = eth_dev_get_overhead_len(dev_info.max_rx_pktlen,
 				dev_info.max_mtu);
-- 
2.47.2

[RFC 7/8] telemetry: avoid potential name conflict for handler

[Stephen Hemminger]

The typedef for handler creates shadow declaration warnings
in other drivers with variables of that name. Add telemetry_
prefix like other variables in the library.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/telemetry/rte_telemetry.h | 2 +-
 lib/telemetry/telemetry.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/telemetry/rte_telemetry.h b/lib/telemetry/rte_telemetry.h
index c4554e4028..4202847cd7 100644
--- a/lib/telemetry/rte_telemetry.h
+++ b/lib/telemetry/rte_telemetry.h
@@ -369,7 +369,7 @@ typedef int (*telemetry_arg_cb)(const char *cmd, const char *params, void *arg,
  * @return
  * Void.
  */
-typedef void * (*handler)(void *sock_id);
+typedef void * (*telemetry_handler)(void *sock_id);
 
 /**
  * Used when registering a command and callback function with telemetry.
diff --git a/lib/telemetry/telemetry.c b/lib/telemetry/telemetry.c
index 1cbbffbf3f..7b8fee0e0e 100644
--- a/lib/telemetry/telemetry.c
+++ b/lib/telemetry/telemetry.c
@@ -47,7 +47,7 @@ struct cmd_callback {
 struct socket {
 	int sock;
 	char path[sizeof(((struct sockaddr_un *)0)->sun_path)];
-	handler fn;
+	telemetry_handler fn;
 	RTE_ATOMIC(uint16_t) *num_clients;
 };
 static struct socket v2_socket; /* socket for v2 telemetry */
-- 
2.47.2

Re: [RFC 7/8] telemetry: avoid potential name conflict for handler

[Bruce Richardson]

On Wed, Aug 27, 2025 at 04:14:10PM -0700, Stephen Hemminger wrote:
> The typedef for handler creates shadow declaration warnings
> in other drivers with variables of that name. Add telemetry_
> prefix like other variables in the library.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  lib/telemetry/rte_telemetry.h | 2 +-
>  lib/telemetry/telemetry.c     | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)

Acked-by: Bruce Richardson <bruce.richardson@intel.com>

[RFC 8/8] pcapng: avoid shadow declaration warning

[Stephen Hemminger]

The BPF filter insert logic had shadowed declaration of len.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/pcapng/rte_pcapng.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/lib/pcapng/rte_pcapng.c b/lib/pcapng/rte_pcapng.c
index 2a07b4c1f5..a46f4bf0bf 100644
--- a/lib/pcapng/rte_pcapng.c
+++ b/lib/pcapng/rte_pcapng.c
@@ -296,16 +296,15 @@ rte_pcapng_add_interface(rte_pcapng_t *self, uint16_t port,
 		opt = pcapng_add_option(opt, PCAPNG_IFB_HARDWARE,
 					 ifhw, strlen(ifhw));
 	if (filter) {
-		size_t len;
+		size_t filter_len = strlen(filter) + 1;
 
-		len = strlen(filter) + 1;
 		opt->code = PCAPNG_IFB_FILTER;
-		opt->length = len;
+		opt->length = filter_len;
 		/* Encoding is that the first octet indicates string vs BPF */
 		opt->data[0] = 0;
-		memcpy(opt->data + 1, filter, strlen(filter));
+		memcpy(opt->data + 1, filter, filter_len - 1);
 
-		opt = (struct pcapng_option *)((uint8_t *)opt + pcapng_optlen(len));
+		opt = (struct pcapng_option *)((uint8_t *)opt + pcapng_optlen(filter_len));
 	}
 
 	opt = pcapng_add_option(opt, PCAPNG_OPT_END, NULL, 0);
-- 
2.47.2