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| author | Juergen Gross <jgross@suse.com> | 2016-10-31 14:58:40 +0100 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2016-11-07 13:55:02 +0100 |
| commit | 9c53a1792a5e6c708897d0cb17f2a4509e499a52 (patch) | |
| tree | 48de24da67c301fcd0eed7cf3af4c2af837e3ba7 /include/xen | |
| parent | Linux 4.9-rc4 (diff) | |
| download | linux-9c53a1792a5e6c708897d0cb17f2a4509e499a52.tar.xz linux-9c53a1792a5e6c708897d0cb17f2a4509e499a52.zip | |
xen: introduce xenbus_read_unsigned()
There are multiple instances of code reading an optional unsigned
parameter from Xenstore via xenbus_scanf(). Instead of repeating the
same code over and over add a service function doing the job.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/xenbus.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h index 32b944b7cebd..271ba62503c7 100644 --- a/include/xen/xenbus.h +++ b/include/xen/xenbus.h @@ -151,6 +151,10 @@ __scanf(4, 5) int xenbus_scanf(struct xenbus_transaction t, const char *dir, const char *node, const char *fmt, ...); +/* Read an (optional) unsigned value. */ +unsigned int xenbus_read_unsigned(const char *dir, const char *node, + unsigned int default_val); + /* Single printf and write: returns -errno or 0. */ __printf(4, 5) int xenbus_printf(struct xenbus_transaction t, |