On Thu, 9 Nov 2017, Oleksandr Tyshchenko wrote: > From: Oleksandr Tyshchenko <[email protected]> > > This is a port from Linux.
When you port stuff from Linux you have to retain the original copyright. Please add the original Signed-off-by lines (you actually have to use git log and git blame to narrow them down for copyright reasons): Signed-off-by: Stephen Warren <[email protected]> Signed-off-by: Linus Walleij <[email protected]> With those: Acked-by: Stefano Stabellini <[email protected]> > Signed-off-by: Oleksandr Tyshchenko <[email protected]> > CC: Stefano Stabellini <[email protected]> > CC: Julien Grall <[email protected]> > --- > xen/common/device_tree.c | 18 ++++++++++++++++++ > xen/include/xen/device_tree.h | 21 +++++++++++++++++++++ > 2 files changed, 39 insertions(+) > > diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c > index 60b0095..08f8072 100644 > --- a/xen/common/device_tree.c > +++ b/xen/common/device_tree.c > @@ -208,6 +208,24 @@ int dt_property_read_string(const struct dt_device_node > *np, > return 0; > } > > +const char *dt_property_next_string(const struct dt_property *prop, > + const char *cur) > +{ > + const void *curv = cur; > + > + if ( !prop ) > + return NULL; > + > + if ( !cur ) > + return prop->value; > + > + curv += strlen(cur) + 1; > + if ( curv >= prop->value + prop->length ) > + return NULL; > + > + return curv; > +} > + > bool_t dt_device_is_compatible(const struct dt_device_node *device, > const char *compat) > { > diff --git a/xen/include/xen/device_tree.h b/xen/include/xen/device_tree.h > index 738f1b6..9e0931c 100644 > --- a/xen/include/xen/device_tree.h > +++ b/xen/include/xen/device_tree.h > @@ -420,6 +420,27 @@ int dt_property_read_string(const struct dt_device_node > *np, > const char *propname, const char **out_string); > > /** > + * dt_property_for_each_string - Iterate over an array of strings within > + * a property with a given name for a given node. > + * > + * Example: > + * > + * struct dt_property *prop; > + * const char *s; > + * > + * dt_property_for_each_string(np, "propname", prop, s) > + * printk("String value: %s\n", s); > + */ > +const char *dt_property_next_string(const struct dt_property *prop, > + const char *cur); > + > +#define dt_property_for_each_string(np, propname, prop, s) \ > + for (prop = dt_find_property(np, propname, NULL), \ > + s = dt_property_next_string(prop, NULL); \ > + s; \ > + s = dt_property_next_string(prop, s)) > + > +/** > * Checks if the given "compat" string matches one of the strings in > * the device's "compatible" property > */ > -- > 2.7.4 > _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
