From nobody Tue Nov 26 19:50:20 2024 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 31187208972; Wed, 16 Oct 2024 12:54:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729083244; cv=none; b=UGpVl6s+otTfzYziQyOfJlg/pLOBTMp7MuvPFOi+vuBsnrkMMBZrHzrwoHSX8esMr/wHU0aLO4x5hniQlCZF75fiEcIYfW2U3biZ431x891/79ybrE7GcMhdJD+p7neBMjF43MhE7vsu0B8h9BHDwHWEAPsJ3EdbNvAXTdmjKEo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729083244; c=relaxed/simple; bh=baLCTu2I4/nxgTNGcbcjWclVx9FiepeCwl/VhbSl0vM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=WZ+sGLhnLaVKCW19ZqPZCqTJXqUjLujYhwCeWdAkCprYV46RYJuR4uS5JrfG29jPcY0zen+QOcIW/twVktIk1Ml7Vyh8zolz/G0qrSuQrLhxTQo0jIqvWhoK+H2CNbK6FHgPCNV8Yj9rVeDDKjcKyNHh4vDZTV9GMfbUns50bbk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=B6fjWgs4; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="B6fjWgs4" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1729083244; x=1760619244; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=baLCTu2I4/nxgTNGcbcjWclVx9FiepeCwl/VhbSl0vM=; b=B6fjWgs4NGZUdxeI/U+qwBVTSFaPiqq+rIOkaiOGv87o48ftFyZIusFQ 29eahR1OPCRUZkDZ5UBe8OJOYEH31ejMqyQS4LEFSU+l8xzBT7YTIHwoZ 5cBWLi/5AHlvU4y/vPAC1tZ7ZBReIQ7+K62CQXRFp8R69S+HmRiEdpnUu dJ7WcNWIW/sruq0XZbDZje8LwK5m81x3IGmjQgsdwrc6nhLI7cDNyqt5l 8M00ZGd53expx8gvMtpx0l1fcQQA/P4BxlJ+CddiHc4wmrK0JmCDh9Loo UYZwSzscrFGfT6a+nbISVxvw9MVaE8jNayIwnD5oEG3Orz4jfPl7Z1FcW w==; X-CSE-ConnectionGUID: Lt4Mm8ybStucl8UZ35Almg== X-CSE-MsgGUID: xl5c98edTTGtcWcBDgXskQ== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="32217483" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="32217483" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2024 05:54:03 -0700 X-CSE-ConnectionGUID: SHAd4ewgTiCBYrsOrApMhw== X-CSE-MsgGUID: TgBZGl2yQiSX3y05GpeDNw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,208,1725346800"; d="scan'208";a="82761621" Received: from qiuxu-clx.sh.intel.com ([10.239.53.109]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2024 05:54:00 -0700 From: Qiuxu Zhuo To: tony.luck@intel.com, bp@alien8.de Cc: tglx@linutronix.de, dave.hansen@linux.intel.com, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org, qiuxu.zhuo@intel.com Subject: [PATCH v2 03/10] x86/mce: Make several functions return bool Date: Wed, 16 Oct 2024 20:30:29 +0800 Message-Id: <20241016123036.21366-4-qiuxu.zhuo@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20241016123036.21366-1-qiuxu.zhuo@intel.com> References: <20241010153202.30876-1-qiuxu.zhuo@intel.com> <20241016123036.21366-1-qiuxu.zhuo@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Make several functions that return 0 or 1 return a boolean value for better readability. No functional changes are intended. Reviewed-by: Tony Luck Signed-off-by: Qiuxu Zhuo --- arch/x86/include/asm/mce.h | 4 ++-- arch/x86/kernel/cpu/mce/amd.c | 10 +++++----- arch/x86/kernel/cpu/mce/core.c | 22 +++++++++++----------- arch/x86/kernel/cpu/mce/intel.c | 9 +++++---- 4 files changed, 23 insertions(+), 22 deletions(-) diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index 3b9970117a0f..7a01bb5b19d3 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -244,7 +244,7 @@ static inline void cmci_rediscover(void) {} static inline void cmci_recheck(void) {} #endif =20 -int mce_available(struct cpuinfo_x86 *c); +bool mce_available(struct cpuinfo_x86 *c); bool mce_is_memory_error(struct mce *m); bool mce_is_correctable(struct mce *m); bool mce_usable_address(struct mce *m); @@ -264,7 +264,7 @@ enum mcp_flags { =20 void machine_check_poll(enum mcp_flags flags, mce_banks_t *b); =20 -int mce_notify_irq(void); +bool mce_notify_irq(void); =20 DECLARE_PER_CPU(struct mce, injectm); =20 diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c index 14bf8c232e45..4dae9841ee38 100644 --- a/arch/x86/kernel/cpu/mce/amd.c +++ b/arch/x86/kernel/cpu/mce/amd.c @@ -381,7 +381,7 @@ static bool lvt_interrupt_supported(unsigned int bank, = u32 msr_high_bits) return msr_high_bits & BIT(28); } =20 -static int lvt_off_valid(struct threshold_block *b, int apic, u32 lo, u32 = hi) +static bool lvt_off_valid(struct threshold_block *b, int apic, u32 lo, u32= hi) { int msr =3D (hi & MASK_LVTOFF_HI) >> 20; =20 @@ -389,7 +389,7 @@ static int lvt_off_valid(struct threshold_block *b, int= apic, u32 lo, u32 hi) pr_err(FW_BUG "cpu %d, failed to setup threshold interrupt " "for bank %d, block %d (MSR%08X=3D0x%x%08x)\n", b->cpu, b->bank, b->block, b->address, hi, lo); - return 0; + return false; } =20 if (apic !=3D msr) { @@ -399,15 +399,15 @@ static int lvt_off_valid(struct threshold_block *b, i= nt apic, u32 lo, u32 hi) * was set is reserved. Return early here: */ if (mce_flags.smca) - return 0; + return false; =20 pr_err(FW_BUG "cpu %d, invalid threshold interrupt offset %d " "for bank %d, block %d (MSR%08X=3D0x%x%08x)\n", b->cpu, apic, b->bank, b->block, b->address, hi, lo); - return 0; + return false; } =20 - return 1; + return true; }; =20 /* Reprogram MCx_MISC MSR behind this threshold bank. */ diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index 2a938f429c4d..725c1d6fb1e5 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -479,10 +479,10 @@ static noinstr void mce_gather_info(struct mce *m, st= ruct pt_regs *regs) } } =20 -int mce_available(struct cpuinfo_x86 *c) +bool mce_available(struct cpuinfo_x86 *c) { if (mca_cfg.disabled) - return 0; + return false; return cpu_has(c, X86_FEATURE_MCE) && cpu_has(c, X86_FEATURE_MCA); } =20 @@ -1748,7 +1748,7 @@ static void mce_timer_delete_all(void) * Can be called from interrupt context, but not from machine check/NMI * context. */ -int mce_notify_irq(void) +bool mce_notify_irq(void) { /* Not more than two messages every minute */ static DEFINE_RATELIMIT_STATE(ratelimit, 60*HZ, 2); @@ -1759,9 +1759,9 @@ int mce_notify_irq(void) if (__ratelimit(&ratelimit)) pr_info(HW_ERR "Machine check events logged\n"); =20 - return 1; + return true; } - return 0; + return false; } EXPORT_SYMBOL_GPL(mce_notify_irq); =20 @@ -1985,25 +1985,25 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo= _x86 *c) return 0; } =20 -static int __mcheck_cpu_ancient_init(struct cpuinfo_x86 *c) +static bool __mcheck_cpu_ancient_init(struct cpuinfo_x86 *c) { if (c->x86 !=3D 5) - return 0; + return false; =20 switch (c->x86_vendor) { case X86_VENDOR_INTEL: intel_p5_mcheck_init(c); mce_flags.p5 =3D 1; - return 1; + return true; case X86_VENDOR_CENTAUR: winchip_mcheck_init(c); mce_flags.winchip =3D 1; - return 1; + return true; default: - return 0; + return false; } =20 - return 0; + return false; } =20 /* diff --git a/arch/x86/kernel/cpu/mce/intel.c b/arch/x86/kernel/cpu/mce/inte= l.c index b3cd2c61b11d..f863df0ff42c 100644 --- a/arch/x86/kernel/cpu/mce/intel.c +++ b/arch/x86/kernel/cpu/mce/intel.c @@ -75,12 +75,12 @@ static u16 cmci_threshold[MAX_NR_BANKS]; */ #define CMCI_STORM_THRESHOLD 32749 =20 -static int cmci_supported(int *banks) +static bool cmci_supported(int *banks) { u64 cap; =20 if (mca_cfg.cmci_disabled || mca_cfg.ignore_ce) - return 0; + return false; =20 /* * Vendor check is not strictly needed, but the initial @@ -89,10 +89,11 @@ static int cmci_supported(int *banks) */ if (boot_cpu_data.x86_vendor !=3D X86_VENDOR_INTEL && boot_cpu_data.x86_vendor !=3D X86_VENDOR_ZHAOXIN) - return 0; + return false; =20 if (!boot_cpu_has(X86_FEATURE_APIC) || lapic_get_maxlvt() < 6) - return 0; + return false; + rdmsrl(MSR_IA32_MCG_CAP, cap); *banks =3D min_t(unsigned, MAX_NR_BANKS, cap & MCG_BANKCNT_MASK); return !!(cap & MCG_CMCI_P); --=20 2.17.1