Hi Andreas
>
> this is the default for static variables. The whole kernel relies on the
> fact, that they are initialized to zero. How can this change anything?
> Are you using a broken compiler? Can you try another version?
>
> Quoting from the dietlibc FAQ:
>
> Q: I see lots of uninitialized variables, like "static int foo;". What
> gives?
> A: "static" global variables are initialized to 0. ANSI C guarantees that.
> Technically speaking, static variables go into the .bss ELF segment,
> while "static int foo=0" goes into .data. Because .bss is zero
> filled by the OS, it does not need to be in the actual binary. So it
> is in fact better to not initialize static variables if the desired
> initialization value is 0 anyway. The same is true for pointers, by
> the way. On all platforms supported by the diet libc, numeric zero
> is also the pointer value for NULL. So not initializing a static
> pointer yields NULL.
>
> Regards,
> Andreas
>
Sorry - you're absolutely right, I just took a quick lopok at the wrong sources an made a wrong
decision :)
The problem are the lot of unnecessary printk statements in printk statements in
linux/drivers/media/dvb/bt8xx/dvb-bt8xx.c
like:
printk("cx24108 debug: entering SetTunerFreq, freq=%d\n",freq);
printk("cx24108 debug: select vco #%d (f=%d)\n",i,freq);
printk("cx24108 debug: pump=%d, n=%d, a=%d\n",pump,n,a);
It was reported over a year ago and no one takes care of these :(
This leads to that syslog:
May 27 21:46:42 [kernel] cx24108 debug: pump=1, n=49, a=5
May 27 21:46:42 [kernel] cx24108 debug: entering SetTunerFreq, freq=1584564
May 27 21:46:42 [kernel] cx24108 debug: select vco #7 (f=1584564)
May 27 21:46:42 [kernel] cx24108 debug: pump=1, n=48, a=31
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1593154
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1593154)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=49, a=7
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1582846
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1582846)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=48, a=29
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1594872
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1594872)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=49, a=9
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1581128
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1581128)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=48, a=27
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1596590
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1596590)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=49, a=11
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1579410
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1579410)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=48, a=26
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1598308
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1598308)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=49, a=12
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1577692
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1577692)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=48, a=24
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1600026
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1600026)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=49, a=14
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1575974
May 27 21:46:43 [kernel] cx24108 debug: select vco #6 (f=1575974)
May 27 21:46:43 [kernel] cx24108 debug: pump=0, n=48, a=22
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1601744
May 27 21:46:43 [kernel] cx24108 debug: select vco #7 (f=1601744)
May 27 21:46:43 [kernel] cx24108 debug: pump=1, n=49, a=16
May 27 21:46:43 [kernel] cx24108 debug: entering SetTunerFreq, freq=1574256
May 27 21:46:43 [kernel] cx24108 debug: select vco #6 (f=1574256)
May 27 21:46:43 [kernel] cx24108 debug: pump=0, n=48, a=20
May 27 21:46:44 [kernel] cx24108 debug: entering SetTunerFreq, freq=1588000
May 27 21:46:44 [kernel] cx24108 debug: select vco #7 (f=1588000)
--
Helmut Auer, helmut@xxxxxxxxxxxxx
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