linux-kernel - [PATCH 14/26] x86/oprofile: Moving nmi_setup_cpu_mux() in nmi

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:	Tue, 28 Jul 2009 19:07:14 +0200
From:	Robert Richter <robert.richter@....com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	LKML <linux-kernel@...r.kernel.org>,
	oprofile-list <oprofile-list@...ts.sourceforge.net>,
	Robert Richter <robert.richter@....com>
Subject: [PATCH 14/26] x86/oprofile: Moving nmi_setup_cpu_mux() in nmi_int.c

This patch moves some code in nmi_int.c to get a single separate
multiplexing code section.

Signed-off-by: Robert Richter <robert.richter@....com>
---
 arch/x86/oprofile/nmi_int.c |   45 ++++++++++++++++++------------------------
 1 files changed, 19 insertions(+), 26 deletions(-)

diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 674fa37..b1edfc9 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -130,11 +130,30 @@ static int nmi_setup_mux(void)
 	return 1;
 }
 
+static void nmi_cpu_setup_mux(int cpu, struct op_msrs const * const msrs)
+{
+	int i;
+	struct op_msr *multiplex = msrs->multiplex;
+
+	for (i = 0; i < model->num_virt_counters; ++i) {
+		if (counter_config[i].enabled) {
+			multiplex[i].saved = -(u64)counter_config[i].count;
+		} else {
+			multiplex[i].addr  = 0;
+			multiplex[i].saved = 0;
+		}
+	}
+
+	per_cpu(switch_index, cpu) = 0;
+}
+
 #else
 
 inline int op_x86_phys_to_virt(int phys) { return phys; }
 static inline void nmi_shutdown_mux(void) { }
 static inline int nmi_setup_mux(void) { return 1; }
+static inline void
+nmi_cpu_setup_mux(int cpu, struct op_msrs const * const msrs) { }
 
 #endif
 
@@ -169,32 +188,6 @@ static int allocate_msrs(void)
 	return 1;
 }
 
-#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-
-static void nmi_cpu_setup_mux(int cpu, struct op_msrs const * const msrs)
-{
-	int i;
-	struct op_msr *multiplex = msrs->multiplex;
-
-	for (i = 0; i < model->num_virt_counters; ++i) {
-		if (counter_config[i].enabled) {
-			multiplex[i].saved = -(u64)counter_config[i].count;
-		} else {
-			multiplex[i].addr  = 0;
-			multiplex[i].saved = 0;
-		}
-	}
-
-	per_cpu(switch_index, cpu) = 0;
-}
-
-#else
-
-static inline void
-nmi_cpu_setup_mux(int cpu, struct op_msrs const * const msrs) { }
-
-#endif
-
 static void nmi_cpu_setup(void *dummy)
 {
 	int cpu = smp_processor_id();
-- 
1.6.3.3


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/