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authorDavid Härdeman <david@hardeman.nu>2010-04-02 15:58:28 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-05-19 12:56:53 -0300
commitb3074c0a3f020766c05c1249a31212bff4a77bea (patch)
tree90fcff6ccd7746273810ebf7f22536855d31ff31 /include/media/ir-core.h
parentbdf1c98e4205832c07d6dedbfd0ec6eab83df358 (diff)
V4L/DVB: drivers/media/IR - improve keytable code
The attached patch rewrites much of the keytable code in drivers/media/IR/ir-keytable.c. The scancodes are now inserted into the array in sorted order which allows for a binary search on lookup. The code has also been shrunk by about 150 lines. In addition it fixes the following bugs: Any use of ir_seek_table() was racy. ir_dev->driver_name is leaked between ir_input_register() and ir_input_unregister(). ir_setkeycode() unconditionally does clear_bit() on dev->keybit when removing a mapping, but there might be another mapping with a different scancode and the same keycode. This version has been updated to incorporate patch feedback from Mauro Carvalho Chehab. [mchehab@redhat.com: Fix a conflict with RC keytable breakup patches and input changes] Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/ir-core.h')
-rw-r--r--include/media/ir-core.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/media/ir-core.h b/include/media/ir-core.h
index c6b8e179dfe..7a0be8d4999 100644
--- a/include/media/ir-core.h
+++ b/include/media/ir-core.h
@@ -47,7 +47,9 @@ struct ir_scancode {
struct ir_scancode_table {
struct ir_scancode *scan;
- int size;
+ unsigned int size; /* Max number of entries */
+ unsigned int len; /* Used number of entries */
+ unsigned int alloc; /* Size of *scan in bytes */
u64 ir_type;
char *name;
spinlock_t lock;