linux-kernel - [PATCH v2 1/3] x86/cpu: Use constant definitions for CPU type

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 16 Aug 2019 16:18:57 +0800
From:   Rahul Tanwar <rahul.tanwar@...ux.intel.com>
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        tony.luck@...el.com, x86@...nel.org
Cc:     andriy.shevchenko@...el.com, alan@...ux.intel.com,
        ricardo.neri-calderon@...ux.intel.com, rafael.j.wysocki@...el.com,
        linux-kernel@...r.kernel.org, qi-ming.wu@...el.com,
        cheol.yong.kim@...el.com, rahul.tanwar@...el.com,
        Rahul Tanwar <rahul.tanwar@...ux.intel.com>
Subject: [PATCH v2 1/3] x86/cpu: Use constant definitions for CPU type

Replace direct values usage with constant definitions when access CPU models.

Signed-off-by: Rahul Tanwar <rahul.tanwar@...ux.intel.com>
Suggested-by: Andy Shevchenko <andriy.shevchenko@...el.com>
---
 arch/x86/kernel/cpu/intel.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 8d6d92ebeb54..66de4b84c369 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -265,9 +265,9 @@ static void early_init_intel(struct cpuinfo_x86 *c)
 	/* Penwell and Cloverview have the TSC which doesn't sleep on S3 */
 	if (c->x86 == 6) {
 		switch (c->x86_model) {
-		case 0x27:	/* Penwell */
-		case 0x35:	/* Cloverview */
-		case 0x4a:	/* Merrifield */
+		case INTEL_FAM6_ATOM_SALTWELL_MID:
+		case INTEL_FAM6_ATOM_SALTWELL_TABLET:
+		case INTEL_FAM6_ATOM_SILVERMONT_MID:
 			set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC_S3);
 			break;
 		default:
-- 
2.11.0