2005-04-16 15:20:36 -07:00
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ALSA: seq: Allow the modular sequencer registration
Many drivers bind the sequencer stuff in off-load by another driver
module, so that it's loaded only on demand. In the current code, this
mechanism doesn't work when the driver is built-in while the sequencer
is module. We check with IS_REACHABLE() and enable only when the
sequencer is in the same level of build.
However, this is basically a overshoot. The binder code
(snd-seq-device) is an individual module from the sequencer core
(snd-seq), and we just have to make the former a built-in while
keeping the latter a module for allowing the scenario like the above.
This patch achieves that by rewriting Kconfig slightly. Now, a driver
that provides the manual sequencer device binding should select
CONFIG_SND_SEQ_DEVICE in a way as
select SND_SEQ_DEVICE if SND_SEQUENCER != n
Note that the "!=n" is needed here to avoid the influence of the
sequencer core is module while the driver is built-in.
Also, since rawmidi.o may be linked with snd_seq_device.o when
built-in, we have to shuffle the code to make the linker happy.
(the kernel linker isn't smart enough yet to handle such a case.)
That is, snd_seq_device.c is moved to sound/core from sound/core/seq,
as well as Makefile.
Last but not least, the patch replaces the code using IS_REACHABLE()
with IS_ENABLED(), since now the condition meets always when enabled.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-06-09 15:11:58 +02:00
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2005-04-16 15:20:36 -07:00
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ALSA: seq: Allow the modular sequencer registration
Many drivers bind the sequencer stuff in off-load by another driver
module, so that it's loaded only on demand. In the current code, this
mechanism doesn't work when the driver is built-in while the sequencer
is module. We check with IS_REACHABLE() and enable only when the
sequencer is in the same level of build.
However, this is basically a overshoot. The binder code
(snd-seq-device) is an individual module from the sequencer core
(snd-seq), and we just have to make the former a built-in while
keeping the latter a module for allowing the scenario like the above.
This patch achieves that by rewriting Kconfig slightly. Now, a driver
that provides the manual sequencer device binding should select
CONFIG_SND_SEQ_DEVICE in a way as
select SND_SEQ_DEVICE if SND_SEQUENCER != n
Note that the "!=n" is needed here to avoid the influence of the
sequencer core is module while the driver is built-in.
Also, since rawmidi.o may be linked with snd_seq_device.o when
built-in, we have to shuffle the code to make the linker happy.
(the kernel linker isn't smart enough yet to handle such a case.)
That is, snd_seq_device.c is moved to sound/core from sound/core/seq,
as well as Makefile.
Last but not least, the patch replaces the code using IS_REACHABLE()
with IS_ENABLED(), since now the condition meets always when enabled.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-06-09 15:11:58 +02:00
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2005-04-16 15:20:36 -07:00
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2017-06-09 14:40:18 +02:00
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2005-04-16 15:20:36 -07:00
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2012-11-22 16:14:55 +01:00
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2005-04-16 15:20:36 -07:00
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2005-11-29 14:48:41 +01:00
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2006-12-12 13:32:29 -05:00
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2008-05-07 12:05:10 +02:00
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2005-04-16 15:20:36 -07:00
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2008-05-23 16:10:37 +02:00
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2009-01-29 15:14:46 -08:00
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2008-05-23 16:10:37 +02:00
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2012-03-30 13:37:16 -07:00
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2008-05-23 16:10:37 +02:00
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2005-04-16 15:20:36 -07:00
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2010-08-09 14:21:11 +02:00
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2013-04-23 11:45:27 +02:00
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2010-08-09 14:21:11 +02:00
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2005-04-16 15:20:36 -07:00
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2017-06-09 14:40:18 +02:00
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2005-04-16 15:20:36 -07:00
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2006-07-27 16:59:23 +02:00
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2008-05-23 16:10:37 +02:00
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2006-07-27 16:59:23 +02:00
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2005-04-16 15:20:36 -07:00
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2007-01-25 13:15:05 +01:00
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2008-05-23 16:10:37 +02:00
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2007-01-25 13:15:05 +01:00
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2007-11-05 16:06:01 +01:00
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2008-05-23 16:10:37 +02:00
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2007-11-05 16:06:01 +01:00
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2010-07-14 23:56:56 +00:00
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2007-11-05 16:06:01 +01:00
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2008-05-23 16:11:26 +02:00
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2008-11-28 15:29:01 +01:00
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2008-05-23 16:11:26 +02:00
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2010-07-14 23:54:21 +00:00
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2008-05-23 16:11:26 +02:00
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2010-07-14 23:54:21 +00:00
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2008-05-23 16:10:37 +02:00
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