linux-kernel - [GIT PULL] x86/cleanups for v4.12

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Date:   Mon, 1 May 2017 13:31:02 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86/cleanups for v4.12

Linus,

Please pull the latest x86-cleanups-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-cleanups-for-linus

   # HEAD: 0ccecd95e797f0c383a43278fcca74d47cd8a785 x86/irq: Remove a redundant #ifdef directive

A handful of small cleanups.

 Thanks,

	Ingo

------------------>
Dou Liyang (3):
      x86/smp: Reduce code duplication
      x86/smp: Remove the redundant #ifdef CONFIG_SMP directive
      x86/irq: Remove a redundant #ifdef directive

Geliang Tang (1):
      x86/pci-calgary: Use setup_timer() instead of open coding it.


 arch/x86/include/asm/smp.h       | 35 ++++++++++++++---------------------
 arch/x86/kernel/irqinit.c        |  2 --
 arch/x86/kernel/pci-calgary_64.c |  5 ++---
 3 files changed, 16 insertions(+), 26 deletions(-)

diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 026ea82ecc60..47103eca3775 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -149,6 +149,19 @@ void smp_store_cpu_info(int id);
 #define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
 #define cpu_acpi_id(cpu)	per_cpu(x86_cpu_to_acpiid, cpu)
 
+/*
+ * This function is needed by all SMP systems. It must _always_ be valid
+ * from the initial startup. We map APIC_BASE very early in page_setup(),
+ * so this is correct in the x86 case.
+ */
+#define raw_smp_processor_id() (this_cpu_read(cpu_number))
+
+#ifdef CONFIG_X86_32
+extern int safe_smp_processor_id(void);
+#else
+# define safe_smp_processor_id()	smp_processor_id()
+#endif
+
 #else /* !CONFIG_SMP */
 #define wbinvd_on_cpu(cpu)     wbinvd()
 static inline int wbinvd_on_all_cpus(void)
@@ -161,22 +174,6 @@ static inline int wbinvd_on_all_cpus(void)
 
 extern unsigned disabled_cpus;
 
-#ifdef CONFIG_X86_32_SMP
-/*
- * This function is needed by all SMP systems. It must _always_ be valid
- * from the initial startup. We map APIC_BASE very early in page_setup(),
- * so this is correct in the x86 case.
- */
-#define raw_smp_processor_id() (this_cpu_read(cpu_number))
-extern int safe_smp_processor_id(void);
-
-#elif defined(CONFIG_X86_64_SMP)
-#define raw_smp_processor_id() (this_cpu_read(cpu_number))
-
-#define safe_smp_processor_id()		smp_processor_id()
-
-#endif
-
 #ifdef CONFIG_X86_LOCAL_APIC
 
 #ifndef CONFIG_X86_64
@@ -191,11 +188,7 @@ static inline int logical_smp_processor_id(void)
 extern int hard_smp_processor_id(void);
 
 #else /* CONFIG_X86_LOCAL_APIC */
-
-# ifndef CONFIG_SMP
-#  define hard_smp_processor_id()	0
-# endif
-
+#define hard_smp_processor_id()	0
 #endif /* CONFIG_X86_LOCAL_APIC */
 
 #ifdef CONFIG_DEBUG_NMI_SELFTEST
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 1423ab1b0312..7468c6987547 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -195,7 +195,5 @@ void __init native_init_IRQ(void)
 	if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs())
 		setup_irq(2, &irq2);
 
-#ifdef CONFIG_X86_32
 	irq_ctx_init(smp_processor_id());
-#endif
 }
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 0c150c06fa5a..fda7867046d0 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1007,9 +1007,8 @@ static void __init calgary_enable_translation(struct pci_dev *dev)
 	writel(cpu_to_be32(val32), target);
 	readl(target); /* flush */
 
-	init_timer(&tbl->watchdog_timer);
-	tbl->watchdog_timer.function = &calgary_watchdog;
-	tbl->watchdog_timer.data = (unsigned long)dev;
+	setup_timer(&tbl->watchdog_timer, &calgary_watchdog,
+		    (unsigned long)dev);
 	mod_timer(&tbl->watchdog_timer, jiffies);
 }