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Sun, 13 Sep 2026 10:00:59 -0700 (PDT) From: Ricardo Barbosa Dias To: shuah@kernel.org, valentina.manea.m@gmail.com, gregkh@linuxfoundation.org Cc: i@zenithal.me, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Ricardo Barbosa Dias Subject: [PATCH] usbip: vhci: fix -Wformat-truncation warning in vhci_sysfs Date: Sun, 13 Sep 2026 17:00:38 +0000 Message-ID: <20260913170038.119463-1-ricardobarbosamscg@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Fix a compilation warning reported by GCC when building with W=3D1: drivers/usb/usbip/vhci_sysfs.c:474:67: error: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 10 [-Werror=3Dformat-truncation=3D] Although vhci_num_controllers is bounded between 1 and 32 in Kconfig, the compiler performs static analysis considering the full range of a signed integer. Increase MAX_STATUS_NAME in vhci.h to 18 to ensure the buffer char array can accommodate the theoretical maximum length of formatted status names, silencing the format-truncation warning. Signed-off-by: Ricardo Barbosa Dias --- drivers/usb/usbip/vhci.h | 2 +- drivers/usb/usbip/vhci_sysfs.c | 2 -- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/usb/usbip/vhci.h b/drivers/usb/usbip/vhci.h index 5659dce15..2c09fcb61 100644 --- a/drivers/usb/usbip/vhci.h +++ b/drivers/usb/usbip/vhci.h @@ -88,7 +88,7 @@ enum hub_speed { #define VHCI_NR_HCS 1 #endif =20 -#define MAX_STATUS_NAME 16 +#define MAX_STATUS_NAME 18 =20 struct vhci { spinlock_t lock; diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c index a7ede6fb3..d870e2c27 100644 --- a/drivers/usb/usbip/vhci_sysfs.c +++ b/drivers/usb/usbip/vhci_sysfs.c @@ -454,8 +454,6 @@ static ssize_t attach_store(struct device *dev, struct = device_attribute *attr, } static DEVICE_ATTR_WO(attach); =20 -#define MAX_STATUS_NAME 16 - struct status_attr { struct device_attribute attr; char name[MAX_STATUS_NAME+1]; --=20 2.43.0