From ce4fecf1fe1518131ff80eebf412de0080fea049 Mon Sep 17 00:00:00 2001 From: Pantelis Antoniou Date: Wed, 21 Jan 2015 19:06:14 +0200 Subject: vsprintf: Add %p extension "%pOF" for device tree 90% of the usage of device node's full_name is printing it out in a kernel message. However, storing the full path for every node is wasteful and redundant. With a custom format specifier, we can generate the full path at run-time and eventually remove the full path from every node. For instance typical use is: pr_info("Frobbing node %s\n", node->full_name); Which can be written now as: pr_info("Frobbing node %pOF\n", node); '%pO' is the base specifier to represent kobjects with '%pOF' representing struct device_node. Currently, struct device_node is the only supported type of kobject. More fine-grained control of formatting includes printing the name, flags, path-spec name and others, explained in the documentation entry. Originally written by Pantelis, but pretty much rewrote the core function using existing string/number functions. The 2 passes were unnecessary and have been removed. Also, updated the checkpatch.pl check. The unittest code was written by Grant Likely. Signed-off-by: Pantelis Antoniou Acked-by: Joe Perches Signed-off-by: Rob Herring --- drivers/of/unittest-data/tests-platform.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/of/unittest-data') diff --git a/drivers/of/unittest-data/tests-platform.dtsi b/drivers/of/unittest-data/tests-platform.dtsi index eb20eeb2b062..a0c93822aee3 100644 --- a/drivers/of/unittest-data/tests-platform.dtsi +++ b/drivers/of/unittest-data/tests-platform.dtsi @@ -26,7 +26,9 @@ #size-cells = <0>; dev@100 { - compatible = "test-sub-device"; + compatible = "test-sub-device", + "test-compat2", + "test-compat3"; reg = <0x100>; }; }; -- cgit v1.2.3