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From:   Baoquan He <bhe@redhat.com>
To:     linux-kernel@vger.kernel.org, ebiederm@xmission.com
Cc:     mingo@kernel.org, tglx@linutronix.de, x86@kernel.org,
        douly.fnst@cn.fujitsu.com, joro@8bytes.org, uobergfe@redhat.com,
        prarit@redhat.com, Baoquan He <bhe@redhat.com>
Subject: [PATCH v3 4/5] x86/apic: Rename variable/function related to x86_io_apic_ops
Date:   Fri,  9 Feb 2018 20:10:07 +0800
Message-Id: <20180209121008.28980-5-bhe@redhat.com>
In-Reply-To: <20180209121008.28980-1-bhe@redhat.com>
References: <20180209121008.28980-1-bhe@redhat.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The names of x86_io_apic_ops and its two member variables, are
misleading. The .read member is to read IO_APIC reg, while .disable
which hook native_disable_io_apic/irq_remapping_disable_io_apic
is actually used to restore boot irq mode, not disable IO_APIC.

So rename x86_io_apic_ops to x86_apic_ops since it doesn't only
handle IO_APIC, also LAPIC.

And also rename its member variables and the related hooks.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 arch/x86/include/asm/io_apic.h  | 6 +++---
 arch/x86/include/asm/x86_init.h | 8 ++++----
 arch/x86/kernel/apic/io_apic.c  | 4 ++--
 arch/x86/kernel/x86_init.c      | 6 +++---
 arch/x86/xen/apic.c             | 2 +-
 drivers/iommu/irq_remapping.c   | 4 ++--
 6 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 5e389145d808..06fec4426458 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -183,11 +183,11 @@ extern void disable_ioapic_support(void);
 
 extern void __init io_apic_init_mappings(void);
 extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg);
-extern void native_disable_io_apic(void);
+extern void native_restore_boot_irq_mode(void);
 
 static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
 {
-	return x86_io_apic_ops.read(apic, reg);
+	return x86_apic_ops.io_apic_read(apic, reg);
 }
 
 extern void setup_IO_APIC(void);
@@ -229,7 +229,7 @@ static inline void mp_save_irq(struct mpc_intsrc *m) { }
 static inline void disable_ioapic_support(void) { }
 static inline void io_apic_init_mappings(void) { }
 #define native_io_apic_read		NULL
-#define native_disable_io_apic		NULL
+#define native_restore_boot_irq_mode	NULL
 
 static inline void setup_IO_APIC(void) { }
 static inline void enable_IO_APIC(void) { }
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index fc2f082ac635..88306054bd98 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -274,16 +274,16 @@ struct x86_msi_ops {
 	void (*restore_msi_irqs)(struct pci_dev *dev);
 };
 
-struct x86_io_apic_ops {
-	unsigned int	(*read)   (unsigned int apic, unsigned int reg);
-	void		(*disable)(void);
+struct x86_apic_ops {
+	unsigned int	(*io_apic_read)   (unsigned int apic, unsigned int reg);
+	void		(*restore)(void);
 };
 
 extern struct x86_init_ops x86_init;
 extern struct x86_cpuinit_ops x86_cpuinit;
 extern struct x86_platform_ops x86_platform;
 extern struct x86_msi_ops x86_msi;
-extern struct x86_io_apic_ops x86_io_apic_ops;
+extern struct x86_apic_ops x86_apic_ops;
 
 extern void x86_early_init_platform_quirks(void);
 extern void x86_init_noop(void);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 9d86b10c2121..68129f11e7db 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1410,7 +1410,7 @@ void __init enable_IO_APIC(void)
 	clear_IO_APIC();
 }
 
-void native_disable_io_apic(void)
+void native_restore_boot_irq_mode(void)
 {
 	/*
 	 * If the i8259 is routed through an IOAPIC
@@ -1443,7 +1443,7 @@ void restore_boot_irq_mode(void)
 	if (!nr_legacy_irqs())
 		return;
 
-	x86_io_apic_ops.disable();
+	x86_apic_ops.restore();
 }
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 1151ccd72ce9..2bccd03bd654 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -146,7 +146,7 @@ void arch_restore_msi_irqs(struct pci_dev *dev)
 }
 #endif
 
-struct x86_io_apic_ops x86_io_apic_ops __ro_after_init = {
-	.read			= native_io_apic_read,
-	.disable		= native_disable_io_apic,
+struct x86_apic_ops x86_apic_ops __ro_after_init = {
+	.io_apic_read	= native_io_apic_read,
+	.restore	= native_restore_boot_irq_mode,
 };
diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index de58533d3664..2163888497d3 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -215,7 +215,7 @@ static void __init xen_apic_check(void)
 }
 void __init xen_init_apic(void)
 {
-	x86_io_apic_ops.read = xen_io_apic_read;
+	x86_apic_ops.io_apic_read = xen_io_apic_read;
 	/* On PV guests the APIC CPUID bit is disabled so none of the
 	 * routines end up executing. */
 	if (!xen_initial_domain())
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 49721b4e1975..496deee3ae3a 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -27,7 +27,7 @@ int disable_irq_post = 0;
 static int disable_irq_remap;
 static struct irq_remap_ops *remap_ops;
 
-static void irq_remapping_disable_io_apic(void)
+static void irq_remapping_restore_boot_irq_mode(void)
 {
 	/*
 	 * With interrupt-remapping, for now we will use virtual wire A
@@ -42,7 +42,7 @@ static void irq_remapping_disable_io_apic(void)
 
 static void __init irq_remapping_modify_x86_ops(void)
 {
-	x86_io_apic_ops.disable		= irq_remapping_disable_io_apic;
+	x86_apic_ops.restore = irq_remapping_restore_boot_irq_mode;
 }
 
 static __init int setup_nointremap(char *str)
-- 
2.13.6