linux-kernel - [PATCH -next] cpuidle: riscv: support non-SMP config

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Message-Id: <20220403031355.20894-1-rdunlap@infradead.org>
Date:   Sat,  2 Apr 2022 20:13:55 -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 <anup@...infault.org>,
        Anup Patel <apatel@...tanamicro.com>,
        Atish Patra <atishp@...osinc.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>, linux-pm@...r.kernel.org,
        linux-riscv@...ts.infradead.org,
        Palmer Dabbelt <palmer@...osinc.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>
Subject: [PATCH -next] cpuidle: riscv: support non-SMP config

Add <asm/smp.h> for cpuid_to_hartid_map etc.
This is needed for both SMP and non-SMP builds, but not having it
causes a build error for non-SMP:

drivers/cpuidle/cpuidle-riscv-sbi.c: In function 'sbi_cpuidle_init_cpu':
drivers/cpuidle/cpuidle-riscv-sbi.c:350:26: error: implicit declaration of function 'cpuid_to_hartid_map' [-Werror=implicit-function-declaration]

Fixes: 6abf32f1d9c5 ("cpuidle: Add RISC-V SBI CPU idle driver")
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 <anup@...infault.org>
Cc: Anup Patel <apatel@...tanamicro.com>
Cc: Atish Patra <atishp@...osinc.com>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: linux-pm@...r.kernel.org
Cc: linux-riscv@...ts.infradead.org
Cc: Palmer Dabbelt <palmer@...osinc.com>
Cc: Paul Walmsley <paul.walmsley@...ive.com>
Cc: Albert Ou <aou@...s.berkeley.edu>
---
 drivers/cpuidle/cpuidle-riscv-sbi.c |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20220401.orig/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ linux-next-20220401/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -22,6 +22,7 @@
 #include <linux/pm_runtime.h>
 #include <asm/cpuidle.h>
 #include <asm/sbi.h>
+#include <asm/smp.h>
 #include <asm/suspend.h>
 
 #include "dt_idle_states.h"