From: Dexuan Cui <decui@microsoft.com>
To: "K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
Long Li <longli@microsoft.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Saurabh Sengar <ssengar@linux.microsoft.com>,
linux-hyperv@vger.kernel.org (open list:Hyper-V/Azure CORE AND
DRIVERS), linux-kernel@vger.kernel.org (open list)
Cc: stable@vger.kernel.org
Subject: [PATCH] tools: hv: Fix a complier warning in the fcopy uio daemon
Date: Tue, 10 Sep 2024 00:44:32 +0000 [thread overview]
Message-ID: <20240910004433.50254-1-decui@microsoft.com> (raw)
hv_fcopy_uio_daemon.c:436:53: warning: '%s' directive output may be truncated
writing up to 14 bytes into a region of size 10 [-Wformat-truncation=]
436 | snprintf(uio_dev_path, sizeof(uio_dev_path), "/dev/%s", uio_name);
Also added 'static' for the array 'desc[]'.
Fixes: 82b0945ce2c2 ("tools: hv: Add new fcopy application based on uio driver")
Cc: stable@vger.kernel.org # 6.10+
Signed-off-by: Dexuan Cui <decui@microsoft.com>
---
tools/hv/hv_fcopy_uio_daemon.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/tools/hv/hv_fcopy_uio_daemon.c b/tools/hv/hv_fcopy_uio_daemon.c
index 3ce316cc9f97..f7741af08a79 100644
--- a/tools/hv/hv_fcopy_uio_daemon.c
+++ b/tools/hv/hv_fcopy_uio_daemon.c
@@ -35,8 +35,6 @@
#define WIN8_SRV_MINOR 1
#define WIN8_SRV_VERSION (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR)
-#define MAX_FOLDER_NAME 15
-#define MAX_PATH_LEN 15
#define FCOPY_UIO "/sys/bus/vmbus/devices/eb765408-105f-49b6-b4aa-c123b64d17d4/uio"
#define FCOPY_VER_COUNT 1
@@ -51,7 +49,7 @@ static const int fw_versions[] = {
#define HV_RING_SIZE 0x4000 /* 16KB ring buffer size */
-unsigned char desc[HV_RING_SIZE];
+static unsigned char desc[HV_RING_SIZE];
static int target_fd;
static char target_fname[PATH_MAX];
@@ -402,8 +400,8 @@ int main(int argc, char *argv[])
struct vmbus_br txbr, rxbr;
void *ring;
uint32_t len = HV_RING_SIZE;
- char uio_name[MAX_FOLDER_NAME] = {0};
- char uio_dev_path[MAX_PATH_LEN] = {0};
+ char uio_name[NAME_MAX] = {0};
+ char uio_dev_path[PATH_MAX] = {0};
static struct option long_options[] = {
{"help", no_argument, 0, 'h' },
--
2.25.1
next reply other threads:[~2024-09-10 0:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-10 0:44 Dexuan Cui [this message]
2024-09-13 7:30 ` [PATCH] tools: hv: Fix a complier warning in the fcopy uio daemon Saurabh Singh Sengar
2024-09-21 1:23 ` Dexuan Cui
2024-09-24 18:22 ` Saurabh Singh Sengar
2024-09-26 4:01 ` Saurabh Singh Sengar
2024-12-07 7:45 ` Wei Liu
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