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From: Kevin Laatz <kevin.laatz@intel.com>
To: dev@dpdk.org
Cc: bruce.richardson@intel.com, thomas@monjalon.net,
	david.marchand@redhat.com, Kevin Laatz <kevin.laatz@intel.com>,
	Sunil Pai G <sunil.pai.g@intel.com>
Subject: [dpdk-dev] [PATCH v3] raw/ioat: fix parameter shadow warning
Date: Wed, 12 May 2021 10:47:46 +0000	[thread overview]
Message-ID: <20210512104746.247453-1-kevin.laatz@intel.com> (raw)
In-Reply-To: <20210510125514.12914-1-kevin.laatz@intel.com>

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(-)

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;
-- 
2.30.2


  parent reply	other threads:[~2021-05-12 10:47 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-07 17:20 [dpdk-dev] [PATCH] " Kevin Laatz
2021-05-08  7:25 ` Pai G, Sunil
2021-05-10  9:02 ` Bruce Richardson
2021-05-10 11:07   ` Laatz, Kevin
2021-05-10 12:55 ` [dpdk-dev] [PATCH v2] " Kevin Laatz
2021-05-10 13:36   ` Bruce Richardson
2021-05-10 14:06   ` David Marchand
2021-05-10 14:48     ` Bruce Richardson
2021-05-11 20:49       ` Thomas Monjalon
2021-05-12 10:47   ` Kevin Laatz [this message]
2021-05-12 12:59     ` [dpdk-dev] [PATCH v3] " Thomas Monjalon

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