net/mlx5: fix compilation warning in GCC-9.1

Message ID 20240707095723.46947-1-getelson@nvidia.com (mailing list archive)
State Awaiting Upstream
Delegated to: Raslan Darawsheh
Headers
Series net/mlx5: fix compilation warning in GCC-9.1 |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/loongarch-compilation success Compilation OK
ci/loongarch-unit-testing success Unit Testing PASS
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS
ci/github-robot: build success github build: passed
ci/intel-Functional success Functional PASS
ci/iol-abi-testing success Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-unit-amd64-testing success Testing PASS
ci/iol-unit-arm64-testing pending Testing pending
ci/iol-compile-arm64-testing pending Testing pending
ci/iol-compile-amd64-testing success Testing PASS
ci/iol-sample-apps-testing success Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-broadcom-Functional success Functional Testing PASS
ci/iol-broadcom-Performance success Performance Testing PASS

Commit Message

Gregory Etelson July 7, 2024, 9:57 a.m. UTC
  GCC has introduced a bugfix in 9.1 that changed GCC ABI in ARM setups:
https://gcc.gnu.org/gcc-9/changes.html
```
On Arm targets (arm*-*-*), a bug in the implementation of the
procedure call standard (AAPCS) in the GCC 6, 7 and 8 releases
has been fixed: a structure containing a bit-field based on a 64-bit
integral type and where no other element in a structure required
64-bit alignment could be passed incorrectly to functions.
This is an ABI change. If the option -Wpsabi is enabled
(on by default) the compiler will emit a diagnostic note for code
that might be affected.
```

The patch fixes PMD compilation in the INTEGRITY flow item.

Fixes: 23b0a8b298b1 ("net/mlx5: fix integrity item validation and translation")

Cc: stable@dpdk.org

Signed-off-by: Gregory Etelson <getelson@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow_dv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
  

Comments

Raslan Darawsheh July 18, 2024, 7:24 a.m. UTC | #1
Hi,

From: Gregory Etelson <getelson@nvidia.com>
Sent: Sunday, July 7, 2024 12:57 PM
To: dev@dpdk.org
Cc: Gregory Etelson; Maayan Kashani; Raslan Darawsheh; stable@dpdk.org; Dariusz Sosnowski; Slava Ovsiienko; Bing Zhao; Ori Kam; Suanming Mou; Matan Azrad
Subject: [PATCH] net/mlx5: fix compilation warning in GCC-9.1

GCC has introduced a bugfix in 9.1 that changed GCC ABI in ARM setups:
https://gcc.gnu.org/gcc-9/changes.html
```
On Arm targets (arm*-*-*), a bug in the implementation of the
procedure call standard (AAPCS) in the GCC 6, 7 and 8 releases
has been fixed: a structure containing a bit-field based on a 64-bit
integral type and where no other element in a structure required
64-bit alignment could be passed incorrectly to functions.
This is an ABI change. If the option -Wpsabi is enabled
(on by default) the compiler will emit a diagnostic note for code
that might be affected.
```

The patch fixes PMD compilation in the INTEGRITY flow item.

Fixes: 23b0a8b298b1 ("net/mlx5: fix integrity item validation and translation")

Cc: stable@dpdk.org

Signed-off-by: Gregory Etelson <getelson@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh
  

Patch

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 8a0d58cb05..89057edbcf 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -7396,11 +7396,13 @@  flow_dv_validate_attributes(struct rte_eth_dev *dev,
 }
 
 static int
-validate_integrity_bits(const struct rte_flow_item_integrity *mask,
+validate_integrity_bits(const void *arg,
 			int64_t pattern_flags, uint64_t l3_flags,
 			uint64_t l4_flags, uint64_t ip4_flag,
 			struct rte_flow_error *error)
 {
+	const struct rte_flow_item_integrity *mask = arg;
+
 	if (mask->l3_ok && !(pattern_flags & l3_flags))
 		return rte_flow_error_set(error, EINVAL,
 					  RTE_FLOW_ERROR_TYPE_ITEM,