[linux-dvb] Re: Kernel oops with ttusb_dec

[Olaf Titz <olaf@bigred.inka.de>]

> Sod's law, really. After digging around in various kernels, it seems
> that the crc32 function that the ttusb_dec uses first appears in
> kernel 2.4.22.

correct.

> As for something more long term I'm not too sure. I guess it depends
> on what version of the kernel is considered the minimum requirement
> for the next tarball release of the drivers.

Do a compile time test on the availability of that function? I'm doing
that in the latest development of CIPE (which could perhaps have
avoided the error in the first place :-)

If the checking is really optional, wrapping it in

#if defined(CONFIG_CRC32) || defined(CONFIG_CRC32_MODULE)
...
#else
#warning "CRC checking not available"
#endif

should be sufficient.

Olaf



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