From: Julian Braha <julianbraha@gmail.com>
To: christian.loehle@arm.com, daniel.lezcano@kernel.org, rafael@kernel.org
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
Julian Braha <julianbraha@gmail.com>
Subject: [PATCH] cpuidle: cleanup dead dependencies on CPU_IDLE in Kconfig
Date: Tue, 31 Mar 2026 08:49:20 +0100 [thread overview]
Message-ID: <20260331074920.41269-1-julianbraha@gmail.com> (raw)
The Kconfig in the parent directory already has the first 'if CPU_IDLE'
gating the inclusion of this Kconfig, meaning that the 'depends on CPUIDLE'
statements in these config options are effectively dead code.
I propose leaving the 'if CPU_IDLE...endif' condition, and removing these
individual 'depends on' statements in Kconfig.mips and Kconfig.powerpc
This dead code was found by kconfirm, a static analysis tool for Kconfig.
Signed-off-by: Julian Braha <julianbraha@gmail.com>
---
drivers/cpuidle/Kconfig | 2 +-
drivers/cpuidle/Kconfig.mips | 2 +-
drivers/cpuidle/Kconfig.powerpc | 2 --
3 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
index cac5997dca50..d6d8386d3f02 100644
--- a/drivers/cpuidle/Kconfig
+++ b/drivers/cpuidle/Kconfig
@@ -81,7 +81,7 @@ config HALTPOLL_CPUIDLE
before halting in the guest (more efficient than polling in the
host via halt_poll_ns for some scenarios).
-endif
+endif # CPU_IDLE
config ARCH_NEEDS_CPU_IDLE_COUPLED
def_bool n
diff --git a/drivers/cpuidle/Kconfig.mips b/drivers/cpuidle/Kconfig.mips
index c3c011af4a35..88728b2b4ea0 100644
--- a/drivers/cpuidle/Kconfig.mips
+++ b/drivers/cpuidle/Kconfig.mips
@@ -4,7 +4,7 @@
#
config MIPS_CPS_CPUIDLE
bool "CPU Idle driver for MIPS CPS platforms"
- depends on CPU_IDLE && MIPS_CPS
+ depends on MIPS_CPS
depends on SYS_SUPPORTS_MIPS_CPS
select ARCH_NEEDS_CPU_IDLE_COUPLED if MIPS_MT || CPU_MIPSR6
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
diff --git a/drivers/cpuidle/Kconfig.powerpc b/drivers/cpuidle/Kconfig.powerpc
index a797a02b7b6f..1931ac8faffb 100644
--- a/drivers/cpuidle/Kconfig.powerpc
+++ b/drivers/cpuidle/Kconfig.powerpc
@@ -4,7 +4,6 @@
#
config PSERIES_CPUIDLE
bool "Cpuidle driver for pSeries platforms"
- depends on CPU_IDLE
depends on PPC_PSERIES
default y
help
@@ -13,7 +12,6 @@ config PSERIES_CPUIDLE
config POWERNV_CPUIDLE
bool "Cpuidle driver for powernv platforms"
- depends on CPU_IDLE
depends on PPC_POWERNV
default y
help
--
2.51.2
reply other threads:[~2026-03-31 7:49 UTC|newest]
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