linux-kernel - Re: [PATCH 06/14] KVM: selftests: Rename UNAME_M to ARCH

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Date:   Sat, 24 Dec 2022 10:12:09 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Marc Zyngier <maz@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     James Morse <james.morse@....com>,
        Alexandru Elisei <alexandru.elisei@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Oliver Upton <oliver.upton@...ux.dev>,
        Tom Rix <trix@...hat.com>, kvm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        kvmarm@...ts.cs.columbia.edu, linux-riscv@...ts.infradead.org,
        llvm@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Ricardo Koller <ricarkol@...gle.com>,
        Aaron Lewis <aaronlewis@...gle.com>,
        Raghavendra Rao Ananta <rananta@...gle.com>
Subject: Re: [PATCH 06/14] KVM: selftests: Rename UNAME_M to ARCH_DIR, fill
 explicitly for x86

On 12/13/22 01:16, Sean Christopherson wrote:
> -ifeq ($(ARCH),riscv)
> -	UNAME_M := riscv
> +ifeq ($(ARCH),x86)
> +	ARCH_DIR := x86_64
> +else ifeq ($(ARCH),arm64)
> +	ARCH_DIR := aarch64
> +else ifeq ($(ARCH),s390)
> +	ARCH_DIR := s390x
> +else ifeq ($(ARCH),riscv)
> +	ARCH_DIR := riscv
> +else
> +$(error Unknown architecture '$(ARCH)')
>   endif

$(error) would break compiling via tools/testing/selftests/Makefile, so 
I am squashing this:

diff --git a/tools/testing/selftests/kvm/Makefile 
b/tools/testing/selftests/kvm/Makefile
index d761a77c3a80..59f3eb53c932 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -13,10 +13,8 @@ else ifeq ($(ARCH),arm64)
  	ARCH_DIR := aarch64
  else ifeq ($(ARCH),s390)
  	ARCH_DIR := s390x
-else ifeq ($(ARCH),riscv)
-	ARCH_DIR := riscv
  else
-$(error Unknown architecture '$(ARCH)')
+	ARCH_DIR := $(ARCH)
  endif

  LIBKVM += lib/assert.c

Then the aarch64 and s390x directories can be renamed---x86 too, but the 
ifeq needs to stay (just changed to do x86_64->x86 instead of the other 
way round).

Paolo