Bug#701690: nvidia: disagrees about version of symbol efi_enabled

[Andreas Beckmann]

On 2013-02-26 23:42, Ben Hutchings wrote:
>>>> I'll see what I can do to fix this.  (And unfortunately if the change is
>>>> reverted then you'll need to rebuild the module again.)
>>
>> Ben, Should I upload nvidia-graphics-modules rebuilt against 3.2.39-1?
>  
> No, I believe I can fix this.
> 
> Also, if you rebuild without changing the nvidia source you'll
> introduce a bug, because the test of efi_enabled will always return
> true now that it's the name of a function...

nvidia-kernel-{source,dkms} don't use upstream's conftest.sh to test for
availability of features, instead we ship (probably for historic reasons
where conftest.sh was not working properly) a manually generated
conftest.h that says

/* Implement conftest.sh function efi_enabled */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,1)
 #define NV_EFI_ENABLED_PRESENT
#else
 #undef NV_EFI_ENABLED_PRESENT
#endif

Anyway, checks for efi.h and efi_enabled were only introduced in 310.14
and have not been backported to the 304.xx series by Nvidia so far. So
this only affects the Nvidia driver in experimental.


Andreas