linux-kernel - [PATCH] RISC-V: cpuidle: fix Kconfig select for RISCV_SBI

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Message-Id: <20220409225317.14332-1-rdunlap@infradead.org>
Date:   Sat,  9 Apr 2022 15:53:17 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        Anup Patel <anup.patel@....com>,
        Anup Patel <apatel@...tanamicro.com>,
        Anup Patel <anup@...infault.org>,
        Palmer Dabbelt <palmer@...osinc.com>, linux-pm@...r.kernel.org,
        linux-riscv@...ts.infradead.org,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>
Subject: [PATCH] RISC-V: cpuidle: fix Kconfig select for RISCV_SBI_CPUIDLE

There can be lots of build errors when building cpuidle-riscv-sbi.o.
They are all caused by a kconfig problem with this warning:

WARNING: unmet direct dependencies detected for RISCV_SBI_CPUIDLE
  Depends on [n]: CPU_IDLE [=y] && RISCV [=y] && RISCV_SBI [=n]
  Selected by [y]:
  - SOC_VIRT [=y] && CPU_IDLE [=y]

so make the 'select' of RISCV_SBI_CPUIDLE also depend on RISCV_SBI.

Fixes: c5179ef1ca0c ("RISC-V: Enable RISC-V SBI CPU Idle driver for QEMU virt machine")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Cc: Anup Patel <anup.patel@....com>
Cc: Anup Patel <apatel@...tanamicro.com>
Cc: Anup Patel <anup@...infault.org>
Cc: Palmer Dabbelt <palmer@...osinc.com>
Cc: linux-pm@...r.kernel.org
Cc: linux-riscv@...ts.infradead.org
Cc: Paul Walmsley <paul.walmsley@...ive.com>
Cc: Palmer Dabbelt <palmer@...belt.com>
Cc: Albert Ou <aou@...s.berkeley.edu>
---
 arch/riscv/Kconfig.socs |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/riscv/Kconfig.socs
+++ b/arch/riscv/Kconfig.socs
@@ -38,7 +38,7 @@ config SOC_VIRT
 	select SIFIVE_PLIC
 	select PM_GENERIC_DOMAINS if PM
 	select PM_GENERIC_DOMAINS_OF if PM && OF
-	select RISCV_SBI_CPUIDLE if CPU_IDLE
+	select RISCV_SBI_CPUIDLE if CPU_IDLE && RISCV_SBI
 	help
 	  This enables support for QEMU Virt Machine.