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(host-127-24.cafrjco.fresno.ca.us.clients.pavlovmedia.net. [68.180.127.24]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-134cbcb9ed3sm28444410c88.1.2026.05.20.17.17.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 17:17:53 -0700 (PDT) From: Ethan Nelson-Moore To: netdev@vger.kernel.org Cc: Michael Grzeschik , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Ethan Nelson-Moore Subject: [PATCH v2 7/7] net: arcnet: com20020-pci: avoid -Wformat-truncation warning Date: Wed, 20 May 2026 17:16:19 -0700 Message-ID: <20260521001631.45434-8-enelsonmoore@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260521001631.45434-1-enelsonmoore@gmail.com> References: <20260521001631.45434-1-enelsonmoore@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When compiling the com20020-pci driver with W=1, I received the following warning: drivers/net/arcnet/com20020-pci.c:224:71: warning: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size between 10 and 11 [-Wformat-truncation=] 224 | snprintf(dev->name, sizeof(dev->name), "arc%d-%d", dev->dev_id, i); In reality, this does not represent a problem, because i is bounded by the .devcount field in struct com20020_pci_card_info, which is statically defined for each card and very small. Quiet the invalid warning by changing the type of i and the .devcount field to be narrower. Signed-off-by: Ethan Nelson-Moore --- drivers/net/arcnet/com20020-pci.c | 3 ++- drivers/net/arcnet/com20020.h | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c index 98f68cb13a52..f6b5371fcdcf 100644 --- a/drivers/net/arcnet/com20020-pci.c +++ b/drivers/net/arcnet/com20020-pci.c @@ -127,7 +127,8 @@ static int com20020pci_probe(struct pci_dev *pdev, struct net_device *dev; struct arcnet_local *lp; struct com20020_priv *priv; - int i, ioaddr, ret; + int ioaddr, ret; + u8 i; struct resource *r; ret = 0; diff --git a/drivers/net/arcnet/com20020.h b/drivers/net/arcnet/com20020.h index e7aac0e81a13..68f49fdc2c28 100644 --- a/drivers/net/arcnet/com20020.h +++ b/drivers/net/arcnet/com20020.h @@ -50,7 +50,7 @@ struct com20020_pci_channel_map { struct com20020_pci_card_info { const char *name; - int devcount; + u8 devcount; struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS]; struct com20020_pci_channel_map misc_map; -- 2.43.0