[Xen-devel] [PATCH] xen-blkback: prefer xenbus_write() over xenbus_printf() where possible

["Jan Beulich" <JBeulich@xxxxxxxx>]

... as being the simpler variant.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 drivers/block/xen-blkback/xenbus.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- 4.7-rc6-prefer-xenbus_write.orig/drivers/block/xen-blkback/xenbus.c
+++ 4.7-rc6-prefer-xenbus_write/drivers/block/xen-blkback/xenbus.c
@@ -617,9 +617,9 @@ static int xen_blkbk_probe(struct xenbus
                goto fail;
        }
 
-       err = xenbus_printf(XBT_NIL, dev->nodename,
-                           "feature-max-indirect-segments", "%u",
-                           MAX_INDIRECT_SEGMENTS);
+       err = xenbus_write(XBT_NIL, dev->nodename,
+                          "feature-max-indirect-segments",
+                          __stringify(MAX_INDIRECT_SEGMENTS));
        if (err)
                dev_warn(&dev->dev,
                         "writing %s/feature-max-indirect-segments (%d)",
@@ -850,7 +850,7 @@ again:
 
        xen_blkbk_barrier(xbt, be, be->blkif->vbd.flush_support);
 
-       err = xenbus_printf(xbt, dev->nodename, "feature-persistent", "%u", 1);
+       err = xenbus_write(xbt, dev->nodename, "feature-persistent", "1");
        if (err) {
                xenbus_dev_fatal(dev, err, "writing %s/feature-persistent",
                                 dev->nodename);




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