Hi Ard,

> This series contains some fixes and cleanups for mixed-mode UEFI on x86.
> Patch #1 adds the missing locking in the runtime service wrapper code for 
> mixed
> mode. This was found by inspection rather than having been reported but could
> be a candidate for -stable nonetheless.
> Patch #2 merges the remaining 32/64-bit specific parts of the setup_efi_pci
> routine.
> Patches #3 and #4 do the same for the UGA draw protocol discovery routines.
> Patch #5 fixes a latent bug in the UGA draw code.
> Patch #6 helps unused code paths to be optimized away on configurations that
> don't need them (32-bit only and 64-bit only)

I have tested this patch set on qemu and I see mixed mode kernel not booting.
My test setup is:
Running qemu-system-x86_64 with 32 bit OVMF and x86_64 kernel built with Mixed 
mode enabled.
I am using elilinux as bootloader.

Upon further investigation, I found that the issue isn't related to this patch 
It's introduced with commit 2e6eb40ca5eb ("Fix incorrect invocation of 
Reverting the change does help in booting mixed mode kernel.

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