diff options
author | Rob Herring <robh@kernel.org> | 2018-08-27 07:50:47 -0500 |
---|---|---|
committer | Rob Herring <robh@kernel.org> | 2018-08-30 13:53:05 -0500 |
commit | f42b0e18f2e5cf34f73ef1b6327b49040b307a33 (patch) | |
tree | 483166e1216f21bc0ebabe76553a2c7940b0e9ca /drivers/of/base.c | |
parent | 36156f9241cb0f9e37d998052873ca7501ad4b36 (diff) | |
download | linux-f42b0e18f2e5cf34f73ef1b6327b49040b307a33.tar.gz linux-f42b0e18f2e5cf34f73ef1b6327b49040b307a33.tar.bz2 linux-f42b0e18f2e5cf34f73ef1b6327b49040b307a33.zip |
of: add node name compare helper functions
In preparation to remove device_node.name pointer, add helper functions
for node name comparisons which are a common pattern throughout the kernel.
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of/base.c')
-rw-r--r-- | drivers/of/base.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index bc420d2aa5f5..9095b8290150 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -54,6 +54,28 @@ DEFINE_MUTEX(of_mutex); */ DEFINE_RAW_SPINLOCK(devtree_lock); +bool of_node_name_eq(const struct device_node *np, const char *name) +{ + const char *node_name; + size_t len; + + if (!np) + return false; + + node_name = kbasename(np->full_name); + len = strchrnul(node_name, '@') - node_name; + + return (strlen(name) == len) && (strncmp(node_name, name, len) == 0); +} + +bool of_node_name_prefix(const struct device_node *np, const char *prefix) +{ + if (!np) + return false; + + return strncmp(kbasename(np->full_name), prefix, strlen(prefix)) == 0; +} + int of_n_addr_cells(struct device_node *np) { u32 cells; |