linux-next: manual merge of the kvm tree with the arm64-fixes tree

linux-next: manual merge of the kvm tree with the arm64-fixes tree

[Stephen Rothwell]

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Hi all,

Today's linux-next merge of the kvm tree got a conflict in:

  arch/arm64/include/asm/kvm_asm.h

between commit:

  9fd339a45be5 ("arm64: Work around broken GCC 4.9 handling of "S" constraint")

from the arm64-fixes tree and commit:

  b881cdce77b4 ("KVM: arm64: Allocate hyp vectors statically")

from the kvm tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/arm64/include/asm/kvm_asm.h
index 8e5fa28b78c2,7ccf770c53d9..000000000000
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@@ -198,14 -199,6 +199,12 @@@ extern void __vgic_v3_init_lrs(void)
  
  extern u32 __kvm_get_mdcr_el2(void);
  
- extern char __smccc_workaround_1_smc[__SMCCC_WORKAROUND_1_SMC_SZ];
- 
 +#if defined(GCC_VERSION) && GCC_VERSION < 50000
 +#define SYM_CONSTRAINT	"i"
 +#else
 +#define SYM_CONSTRAINT	"S"
 +#endif
 +
  /*
   * Obtain the PC-relative address of a kernel symbol
   * s: symbol

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Re: linux-next: manual merge of the kvm tree with the arm64-fixes tree

[Catalin Marinas]

On Fri, Dec 18, 2020 at 01:47:39PM +1100, Stephen Rothwell wrote:
> Today's linux-next merge of the kvm tree got a conflict in:
> 
>   arch/arm64/include/asm/kvm_asm.h
> 
> between commit:
> 
>   9fd339a45be5 ("arm64: Work around broken GCC 4.9 handling of "S" constraint")
> 
> from the arm64-fixes tree and commit:
> 
>   b881cdce77b4 ("KVM: arm64: Allocate hyp vectors statically")
> 
> from the kvm tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc arch/arm64/include/asm/kvm_asm.h
> index 8e5fa28b78c2,7ccf770c53d9..000000000000
> --- a/arch/arm64/include/asm/kvm_asm.h
> +++ b/arch/arm64/include/asm/kvm_asm.h
> @@@ -198,14 -199,6 +199,12 @@@ extern void __vgic_v3_init_lrs(void)
>   
>   extern u32 __kvm_get_mdcr_el2(void);
>   
> - extern char __smccc_workaround_1_smc[__SMCCC_WORKAROUND_1_SMC_SZ];
> - 
>  +#if defined(GCC_VERSION) && GCC_VERSION < 50000
>  +#define SYM_CONSTRAINT	"i"
>  +#else
>  +#define SYM_CONSTRAINT	"S"
>  +#endif
>  +
>   /*
>    * Obtain the PC-relative address of a kernel symbol
>    * s: symbol

Thanks Stephen, it looks fine. I'll send a pull request later today with
this commit but it's simple enough for Linus to fix it.

-- 
Catalin