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| author | Joe Perches <joe@perches.com> | 2010-12-09 19:29:08 -0800 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-12-10 15:14:43 +0100 |
| commit | 504499f22c08a03e2e19dc88d31aa0ecd2ac815e (patch) | |
| tree | 9cbd803c228103b37006ab2427981db8d7f66ab0 /drivers/hid | |
| parent | a3789a1783d37f2772ba5046b26416c98dfe1bfa (diff) | |
| download | linux-3.10-504499f22c08a03e2e19dc88d31aa0ecd2ac815e.tar.gz linux-3.10-504499f22c08a03e2e19dc88d31aa0ecd2ac815e.tar.bz2 linux-3.10-504499f22c08a03e2e19dc88d31aa0ecd2ac815e.zip | |
HID: simplify an index check in hid_lookup_collection
Save the struct hid_collection * in a temporary to shorten
the generated code a bit and perhaps improve readability.
$ size drivers/hid/hid-core.o*
text data bss dec hex filename
16460 78 8 16546 40a2 drivers/hid/hid-core.o.new
16469 78 8 16555 40ab drivers/hid/hid-core.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-core.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 86b7155632f..d4c1906313d 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -178,10 +178,14 @@ static int close_collection(struct hid_parser *parser) static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) { + struct hid_collection *collection = parser->device->collection; int n; - for (n = parser->collection_stack_ptr - 1; n >= 0; n--) - if (parser->device->collection[parser->collection_stack[n]].type == type) - return parser->device->collection[parser->collection_stack[n]].usage; + + for (n = parser->collection_stack_ptr - 1; n >= 0; n--) { + unsigned index = parser->collection_stack[n]; + if (collection[index].type == type) + return collection[index].usage; + } return 0; /* we know nothing about this usage type */ } |