On 05/28/2009 03:12 PM, Michael Krufky wrote:
On Thu, May 28, 2009 at 12:05 AM, David Ward<david.ward@xxxxxxxxxx> wrote:
Revision 11873 (committed earlier today) has broken the cx18 driver for me,
with the line "cx18: Unknown symbol __udivdi3" appearing in dmesg when the
module tries to load. I'm using Ubuntu 8.04.2 which uses kernel 2.6.24 and
gcc 4.2.4.
I also wanted to express my appreciation to Mauro for fixing the build for
older kernels today, as it is very desirable for me to use a
distribution/kernel which has long-term support and updates, but I simply
need to add a DVB driver that wasn't part of the older kernel.
Thanks so much.
David Ward
Let it be known that this issue only affects 32bit kernels. I believe
the offending line of code is here:
fsc = ((((u64)sc) * 28636360)/src_decimation)>> 13L;
(cc added to Andy Walls)
-Mike Krufky
Some Google searching seems to suggest that the correct thing to do here
is to use the 'do_div' macro for the division, which is declared in
<asm/div64.h>:
http://www.captain.at/howto-udivdi3-umoddi3.php
David
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