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Making static data const avoids allocation of additional r/w memory and
reduces initialisation time. It also provides some additional opportunities
for compiler optimisations.
Signed-off-by: Lawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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And a little code refactoring/neatening around the removals
Reduces object size a little bit:
new:
$ size drivers/media/dvb/frontends/si21xx.o
text data bss dec hex filename
8984 56 1816 10856 2a68 drivers/media/dvb/frontends/si21xx.o
old:
$ size drivers/media/dvb/frontends/si21xx.o
text data bss dec hex filename
9084 56 1792 10932 2ab4 drivers/media/dvb/frontends/si21xx.o
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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properly
This patch changes most frontend drivers to allocate their state structure via
kzalloc and not kmalloc. This is done to properly initialize the
embedded "struct dvb_frontend frontend" field, that they all have.
The visible effect of this struct being uninitalized is, that the member "id"
that is used to set the name of kernel thread is totally random.
Some board drivers (for example cx88-dvb) set this "id" via
videobuf_dvb_alloc_frontend but most do not.
So I at least get random id values for saa7134, flexcop and ttpci based cards.
It looks like this in dmesg:
DVB: registering adapter 1 frontend -10551321 (ST STV0299 DVB-S)
The related kernel thread then also gets a strange name
like "kdvb-ad-1-fe--1".
Cc: Michael Krufky <mkrufky@linuxtv.org>
Cc: Steven Toth <stoth@linuxtv.org>
Cc: Timothy Lee <timothy.lee@siriushk.com>
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Acked-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
drivers/media/dvb/frontends/si21xx.c
This patch removes the said #include <version.h>.
Cc: Igor M. Liplianin <liplianin@tut.by>
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Add support for Silicon Laboratories SI2109/2110 demodulator
and cards with it, such as DvbWorld PCI2002.
Signed-off-by: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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