diff mbox series

[v3] raw/ioat: fix parameter shadow warning

Message ID 20210512104746.247453-1-kevin.laatz@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers show
Series [v3] raw/ioat: fix parameter shadow warning | expand

Checks

Context Check Description
ci/iol-mellanox-Functional fail Functional Testing issues
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/intel-Testing success Testing PASS
ci/Intel-compilation success Compilation OK
ci/iol-abi-testing success Testing PASS
ci/iol-testing success Testing PASS
ci/github-robot success github build: passed
ci/checkpatch success coding style OK

Commit Message

Kevin Laatz May 12, 2021, 10:47 a.m. UTC
In the function __idxd_completed_ops() we have a parameter shadow warning
due to a local variable having the same name as one of the function
parameters. This issue is fixed by simply renaming the local variable.

This warning was caught when additions were made to the OVS codebase,
which include adding calls the IOAT APIs. The OVS build passes the
-Wshadow flag by default, allowing the warning to be seen when building
OVS with DPDK 21.05-rc2.

Fixes: 245efe544d8e ("raw/ioat: report status of completed jobs")

Reported-by: Sunil Pai G <sunil.pai.g@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Tested-by: Sunil Pai G <sunil.pai.g@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

---
v2: add details of warning discovery
v3: commit log update
---
 drivers/raw/ioat/rte_idxd_rawdev_fns.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Thomas Monjalon May 12, 2021, 12:59 p.m. UTC | #1
12/05/2021 12:47, Kevin Laatz:
> In the function __idxd_completed_ops() we have a parameter shadow warning
> due to a local variable having the same name as one of the function
> parameters. This issue is fixed by simply renaming the local variable.
> 
> This warning was caught when additions were made to the OVS codebase,
> which include adding calls the IOAT APIs. The OVS build passes the
> -Wshadow flag by default, allowing the warning to be seen when building
> OVS with DPDK 21.05-rc2.
> 
> Fixes: 245efe544d8e ("raw/ioat: report status of completed jobs")
> 
> Reported-by: Sunil Pai G <sunil.pai.g@intel.com>
> Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
> Tested-by: Sunil Pai G <sunil.pai.g@intel.com>
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Applied, thanks.
diff mbox series

Patch

diff --git a/drivers/raw/ioat/rte_idxd_rawdev_fns.h b/drivers/raw/ioat/rte_idxd_rawdev_fns.h
index 862e0eb41d..dbd8dfc507 100644
--- a/drivers/raw/ioat/rte_idxd_rawdev_fns.h
+++ b/drivers/raw/ioat/rte_idxd_rawdev_fns.h
@@ -301,11 +301,11 @@  __idxd_completed_ops(int dev_id, uint8_t max_ops, uint32_t *status, uint8_t *num
 		uint16_t idx_to_chk = idxd->batch_idx_ring[idxd->batch_idx_read];
 		volatile struct rte_idxd_completion *comp_to_chk =
 				(struct rte_idxd_completion *)&idxd->desc_ring[idx_to_chk];
-		uint8_t status = comp_to_chk->status;
-		if (status == 0)
+		uint8_t batch_status = comp_to_chk->status;
+		if (batch_status == 0)
 			break;
 		comp_to_chk->status = 0;
-		if (unlikely(status > 1)) {
+		if (unlikely(batch_status > 1)) {
 			/* error occurred somewhere in batch, start where last checked */
 			uint16_t desc_count = comp_to_chk->completed_size;
 			uint16_t batch_start = idxd->hdls_avail;