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authorDawei Li <set_pte_at@outlook.com>2022-11-24 19:12:14 +0300
committerMichael S. Tsirkin <mst@redhat.com>2022-12-28 13:28:11 +0300
commitc8e82e3877028381969779a86972d9a4f57a9ea0 (patch)
tree3db04a0df7ec97999970f22821beee375aeec324 /drivers/virtio
parentb1d65f717cd6305a396a8738e022c6f7c65cfbe8 (diff)
downloadlinux-c8e82e3877028381969779a86972d9a4f57a9ea0.tar.xz
virtio: Implementing attribute show with sysfs_emit
Replace sprintf with sysfs_emit or its variants for their built-in PAGE_SIZE awareness. Signed-off-by: Dawei Li <set_pte_at@outlook.com> Message-Id: <TYCP286MB23232A999FE7DBDF50BA0FAACA0F9@TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio')
-rw-r--r--drivers/virtio/virtio.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 828ced060742..b9a80aedee1b 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -15,7 +15,7 @@ static ssize_t device_show(struct device *_d,
struct device_attribute *attr, char *buf)
{
struct virtio_device *dev = dev_to_virtio(_d);
- return sprintf(buf, "0x%04x\n", dev->id.device);
+ return sysfs_emit(buf, "0x%04x\n", dev->id.device);
}
static DEVICE_ATTR_RO(device);
@@ -23,7 +23,7 @@ static ssize_t vendor_show(struct device *_d,
struct device_attribute *attr, char *buf)
{
struct virtio_device *dev = dev_to_virtio(_d);
- return sprintf(buf, "0x%04x\n", dev->id.vendor);
+ return sysfs_emit(buf, "0x%04x\n", dev->id.vendor);
}
static DEVICE_ATTR_RO(vendor);
@@ -31,7 +31,7 @@ static ssize_t status_show(struct device *_d,
struct device_attribute *attr, char *buf)
{
struct virtio_device *dev = dev_to_virtio(_d);
- return sprintf(buf, "0x%08x\n", dev->config->get_status(dev));
+ return sysfs_emit(buf, "0x%08x\n", dev->config->get_status(dev));
}
static DEVICE_ATTR_RO(status);
@@ -39,7 +39,7 @@ static ssize_t modalias_show(struct device *_d,
struct device_attribute *attr, char *buf)
{
struct virtio_device *dev = dev_to_virtio(_d);
- return sprintf(buf, "virtio:d%08Xv%08X\n",
+ return sysfs_emit(buf, "virtio:d%08Xv%08X\n",
dev->id.device, dev->id.vendor);
}
static DEVICE_ATTR_RO(modalias);
@@ -54,9 +54,9 @@ static ssize_t features_show(struct device *_d,
/* We actually represent this as a bitstring, as it could be
* arbitrary length in future. */
for (i = 0; i < sizeof(dev->features)*8; i++)
- len += sprintf(buf+len, "%c",
+ len += sysfs_emit_at(buf, len, "%c",
__virtio_test_bit(dev, i) ? '1' : '0');
- len += sprintf(buf+len, "\n");
+ len += sysfs_emit_at(buf, len, "\n");
return len;
}
static DEVICE_ATTR_RO(features);