On Sun, 29 Apr 2007, Ingo Flaschberger wrote:
> Hi Mike,
>
> >> (+) Convert usage of a semaphore into a mutex (a mutex is more
> >> efficient). This comes from a kernel janitor.
>
> sorry, posted before at the wrong thread.
> seems, the mutex stuff breaks with linux 2.6.15-4
>
This is because mutexes did not appear until 2.6.16. There's some macro
#define cruft in pvrusb2-options.h which is supposed to paste over this
(by redefining mutex operations in terms of older semaphore operations).
However DEFINE_MUTEX() wasn't set up there. Now it is.
I'm test compiling it with every kernel from 2.6.12 up to the present
before releasing this. This time. I meant to do that before (even had
hundreds of MB of build trees ready) but forgot :-(
-Mike
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