From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f49.google.com (mail-wm1-f49.google.com [209.85.128.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4C9773C3BFF for ; Tue, 31 Mar 2026 07:49:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774943368; cv=none; b=twY2fwOwL02lQ6uBXz6b5KWIlL8IJlyUp7RTZ0KlKZn72Edcu2OxoCuJFFp9foaycNWjoXU6DEgywjDwSrnUbB1CG6EyLPLpr69XEFazticLwag+xbBFdh70M7nNe0XJ9DS/QY8jTlemIZcFQeDC0I6saN6tOdHFwuHoUQ4QTTs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774943368; c=relaxed/simple; bh=F1pviNn8lynBvPvORMKmIsv/2V7+9VQMRSrR40ekX+I=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=m0l8potjklcS9JzH7+u7taem8kDedht5eV7DGhBe+cvBL/fY4cQEMfeGbvKzfaVHo/J2ySfLIlsWjq/dbHkAnfSN8vYMPOUnh6vFxeJPextNkuYztDKAoBtWafJO6CyQ2CEjxrLX0bOvFPgml5eORRwM6sXvb240t/ASuLlBbn8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=oOZCpf3v; arc=none smtp.client-ip=209.85.128.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="oOZCpf3v" Received: by mail-wm1-f49.google.com with SMTP id 5b1f17b1804b1-4870206f73bso32862115e9.3 for ; Tue, 31 Mar 2026 00:49:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1774943364; x=1775548164; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:sender:from:to:cc:subject:date:message-id:reply-to; bh=P1QJUAi1/64rwInB3eoPUZsspxRVjkU2I35RZxwGISI=; b=oOZCpf3v7gP1JdM4QlXb0a9UbPfLqfbWglwsRpYEeDZOnERewi0iHmALM7i4Af+ERc L3+Rt2coFavP+ipkZ7QQ//rPxfj7KXGLPDwSbQnBvRhvUpz+jzQmGSTZTNWlM91xhHuy uqpG8QXbJ5U1E67twHJTwviH5gyTYEvNOTBf5JqZl+ZVTaLgGyoorv4kL9e3gV2yX7yr bb28PShVsSzRWz5g0C+HCqxbnAyxYlsXCi4Ixe7f9ChirnyKv9OpFeEbGWCR2POSU3Pi s2Z0Lj8oq+VD3+E0SsvUXqffA6xWOPEGCp2EZasx9hvF53DQmbGtTUB7eKaTu788Y4GR Fnew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774943364; x=1775548164; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:sender:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=P1QJUAi1/64rwInB3eoPUZsspxRVjkU2I35RZxwGISI=; b=IhQNBcCus0er5uIc7TCO7ivou/Mj8D+WN7t+rlB74Gf9DiDgc5hEziYBYFpMXpwbs3 FUETgVO8o1X6Ylu9QEB/uyuwoUtNNw1RposcGYxE9+I49yKNJGHqVxvLF8rVs1xsnBfJ aE1nbZaV86uNZSbJaBn1/3oebMLYeo8i2Wg59XN4pDhb3iqlju+3BC5c3BvtGlZTNZIJ KWhNUbz2b2Z8ZNhE55tYFIfo0bxDVwrQvca+jsAZqCkb8LC1D0kXGWalBSIh0O8RmjLM dK6U4xxh+TDLbsUzMBwIw85lhn5GMtPV9YUBLNe4jIQr2Ew7wN3AI7FnVrsvBXQikOnr ELQg== X-Gm-Message-State: AOJu0Yx5M+qfaYHEmds4WqBDZCP/bSX3uP63SidTrqV8AE8IvIWWt8rL /xrhqE86vG4UwtLRLlOS8DRXihLEK5SScm89hKJz3wQ0AD/Lw6ChE/4S X-Gm-Gg: ATEYQzyiNtWX1Gq0+/XXKLh3wWJl8wCf2wmnxTqBOTTLDEF1Sa6LjhMYYJNGSQNNbTu iHXNBA1aAjikMArotJdaZEDhpWs3YtGbd5vphjyotq4VjVWIKFMe5MeF7Sxj7/XjCiDOGH1c6Pt MAJWsN8BAKANqLpQPUHhb0o4WNnOIbtroXvZ3iAz/dnyDfyTv53dc+C70WXo+JZPg2eyp1O+7jc 1kRVKPQROu0RihRbxzOO9nRCIq5la3aaEnnvFMkXi4LbbttNy8QCB7zU64yt5yxBr0x6FkcvkVZ fNEPjfG3PecrgMKVS5yC2jZ0DRXx2k8DqllH6bmQO9teYkYjfW4iVCCgnQi8aYt42+rEfZMySak A9yAL0sxrG4JrgmG+fraJOhqrcDnCJLxle5DABPT2ZIIsTfCdxGaZUdTHfC+dplgKiVRTDfNMHi hUJzQTQIsT767zJ6kAfFexxBRyRfhtNA== X-Received: by 2002:a05:600c:1d1e:b0:486:fc95:1a91 with SMTP id 5b1f17b1804b1-48727f2373dmr258310945e9.12.1774943363474; Tue, 31 Mar 2026 00:49:23 -0700 (PDT) Received: from nixos-office ([2001:8a0:e95c:5e00:f8c1:fa51:743d:7994]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43cf2471ee2sm24974967f8f.29.2026.03.31.00.49.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Mar 2026 00:49:23 -0700 (PDT) Sender: Julian Braha From: Julian Braha 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 Subject: [PATCH] cpuidle: cleanup dead dependencies on CPU_IDLE in Kconfig Date: Tue, 31 Mar 2026 08:49:20 +0100 Message-ID: <20260331074920.41269-1-julianbraha@gmail.com> X-Mailer: git-send-email 2.51.2 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- 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