From c8e82e3877028381969779a86972d9a4f57a9ea0 Mon Sep 17 00:00:00 2001 From: Dawei Li Date: Fri, 25 Nov 2022 00:12:14 +0800 Subject: 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 Message-Id: Signed-off-by: Michael S. Tsirkin --- drivers/virtio/virtio.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers/virtio') 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); -- cgit v1.2.3