kernel 2.4-test10: new wrapper.h brakes drivers

kernel 2.4-test10: new wrapper.h brakes drivers

[David Hammerton]

Hi,

i just installed the latest kernel (2.4-test10).

On recompilation of my "Nvidia" kernel drivers (for geforce 2 3d video support
in linux), it failed linking to "mem_map_inc_count" (and dec_count).

Im not much of a programmer, but to get it working all i had to do was to add
to '/usr/src/linux/include/linux/wrapper.h':
/*the patch*/
#define mem_map_inc_count(p)    atomic_inc(&(p->count))
#define mem_map_dec_count(p)    atomic_dec(&(p->count))
/*end patch*/

yes, you'll notice i ripped this out of the older kernels..

good luck in finding an alternative, or just leave it in, or whatever.

cheers

David
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Re: kernel 2.4-test10: new wrapper.h brakes drivers

[Jeff Garzik]

David Hammerton wrote:
> 
> Hi,
> 
> i just installed the latest kernel (2.4-test10).
> 
> On recompilation of my "Nvidia" kernel drivers (for geforce 2 3d video support
> in linux), it failed linking to "mem_map_inc_count" (and dec_count).
> 
> Im not much of a programmer, but to get it working all i had to do was to add
> to '/usr/src/linux/include/linux/wrapper.h':
> /*the patch*/
> #define mem_map_inc_count(p)    atomic_inc(&(p->count))
> #define mem_map_dec_count(p)    atomic_dec(&(p->count))
> /*end patch*/
> 
> yes, you'll notice i ripped this out of the older kernels..
> 
> good luck in finding an alternative, or just leave it in, or whatever.

if the nvidia kernel shell needs to support multiple kernel versions,
they should add

#ifndef mem_map_inc_count
...compat code...
#endif

-- 
Jeff Garzik             | Dinner is ready when
Building 1024           | the smoke alarm goes off.
MandrakeSoft            |	-/usr/games/fortune
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