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author | Pantelis Antoniou <pantelis.antoniou@konsulko.com> | 2015-01-21 19:06:14 +0200 |
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committer | Rob Herring <robh@kernel.org> | 2017-06-27 12:36:40 -0500 |
commit | ce4fecf1fe1518131ff80eebf412de0080fea049 (patch) | |
tree | ce6ebedb494bf08a0375050fe4077f2e1dbcb71c /lib/hexdump.c | |
parent | 27497e11b56a072dfd80e9f1f229049b2921a1a6 (diff) | |
download | linux-ce4fecf1fe1518131ff80eebf412de0080fea049.tar.gz linux-ce4fecf1fe1518131ff80eebf412de0080fea049.tar.bz2 linux-ce4fecf1fe1518131ff80eebf412de0080fea049.zip |
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 <pantelis.antoniou@konsulko.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'lib/hexdump.c')
0 files changed, 0 insertions, 0 deletions