Input: get rid of MATCH_BIT() macro
MATCH_BIT() is ugly and stupid, we have much nicer bitmap_subset() which does the same and does not hide control flow. Reported-by: Baodong Chen <chenbdchenbd@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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1 changed files with 26 additions and 17 deletions
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@ -844,18 +844,10 @@ int input_set_keycode(struct input_dev *dev,
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}
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EXPORT_SYMBOL(input_set_keycode);
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#define MATCH_BIT(bit, max) \
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for (i = 0; i < BITS_TO_LONGS(max); i++) \
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if ((id->bit[i] & dev->bit[i]) != id->bit[i]) \
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break; \
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if (i != BITS_TO_LONGS(max)) \
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continue;
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static const struct input_device_id *input_match_device(struct input_handler *handler,
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struct input_dev *dev)
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{
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const struct input_device_id *id;
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int i;
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for (id = handler->id_table; id->flags || id->driver_info; id++) {
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@ -875,15 +867,32 @@ static const struct input_device_id *input_match_device(struct input_handler *ha
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if (id->version != dev->id.version)
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continue;
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MATCH_BIT(evbit, EV_MAX);
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MATCH_BIT(keybit, KEY_MAX);
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MATCH_BIT(relbit, REL_MAX);
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MATCH_BIT(absbit, ABS_MAX);
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MATCH_BIT(mscbit, MSC_MAX);
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MATCH_BIT(ledbit, LED_MAX);
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MATCH_BIT(sndbit, SND_MAX);
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MATCH_BIT(ffbit, FF_MAX);
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MATCH_BIT(swbit, SW_MAX);
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if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX))
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continue;
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if (!bitmap_subset(id->keybit, dev->keybit, KEY_MAX))
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continue;
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if (!bitmap_subset(id->relbit, dev->relbit, REL_MAX))
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continue;
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if (!bitmap_subset(id->absbit, dev->absbit, ABS_MAX))
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continue;
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if (!bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX))
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continue;
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if (!bitmap_subset(id->ledbit, dev->ledbit, LED_MAX))
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continue;
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if (!bitmap_subset(id->sndbit, dev->sndbit, SND_MAX))
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continue;
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if (!bitmap_subset(id->ffbit, dev->ffbit, FF_MAX))
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continue;
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if (!bitmap_subset(id->swbit, dev->swbit, SW_MAX))
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continue;
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if (!handler->match || handler->match(handler, dev))
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return id;
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