On Mon, Apr 16, 2018 at 07:02:15PM +0800, kbuild test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git next
> head:   2c603650ee23c4596f4852e43ae40e42a0c771e1
> commit: 2c603650ee23c4596f4852e43ae40e42a0c771e1 [1/1] x86/xen/efi: 
> Initialize UEFI secure boot state during dom0 boot
> reproduce:
>         # apt-get install sparse
>         git checkout 2c603650ee23c4596f4852e43ae40e42a0c771e1
>         make ARCH=x86_64 allmodconfig
>         make C=1 CF=-D__CHECK_ENDIAN__
>
>
> sparse warnings: (new ones prefixed by >>)
>
> >> arch/x86/xen/efi.c:133:35: sparse: incorrect type in argument 1 (different 
> >> type sizes) @@    expected unsigned short [usertype] *name @@    got ype] 
> >> *name @@
>    arch/x86/xen/efi.c:133:35:    expected unsigned short [usertype] *name
>    arch/x86/xen/efi.c:133:35:    got char *<noident>
>    arch/x86/xen/efi.c:143:35: sparse: incorrect type in argument 1 (different 
> type sizes) @@    expected unsigned short [usertype] *name @@    got ype] 
> *name @@
>    arch/x86/xen/efi.c:143:35:    expected unsigned short [usertype] *name
>    arch/x86/xen/efi.c:143:35:    got char *<noident>
>    arch/x86/xen/efi.c:154:35: sparse: incorrect type in argument 1 (different 
> type sizes) @@    expected unsigned short [usertype] *name @@    got ype] 
> *name @@
>    arch/x86/xen/efi.c:154:35:    expected unsigned short [usertype] *name
>    arch/x86/xen/efi.c:154:35:    got char *<noident>

Ugh... It looks that compiler does not like L"SecureBoot".
I have to use this cryptic form from 
drivers/firmware/efi/libstub/secureboot.c... :-(((
I will send the fix for this tomorrow.

Daniel
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