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vdpa: Convert sprintf/snprintf to sysfs_emit
Per filesystems/sysfs.rst, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. coccinelle complains that there are still a couple of functions that use snprintf(). Convert them to sysfs_emit(). sprintf() will be converted as weel if they have. Generally, this patch is generated by make coccicheck M=<path/to/file> MODE=patch \ COCCI=scripts/coccinelle/api/device_attr_show.cocci No functional change intended CC: "Michael S. Tsirkin" <mst@redhat.com> CC: Jason Wang <jasowang@redhat.com> CC: Xuan Zhuo <xuanzhuo@linux.alibaba.com> CC: virtualization@lists.linux.dev Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Message-Id: <20240314095853.1326111-1-lizhijian@fujitsu.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -98,7 +98,7 @@ static ssize_t driver_override_show(struct device *dev,
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ssize_t len;
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device_lock(dev);
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len = snprintf(buf, PAGE_SIZE, "%s\n", vdev->driver_override);
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len = sysfs_emit(buf, "%s\n", vdev->driver_override);
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device_unlock(dev);
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return len;
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