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Message-ID: <tip-49750862a592d9a02de328f6f21ed2037b12e2af@git.kernel.org>
Date:	Wed, 26 Nov 2014 15:15:46 -0800
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	konrad.wilk@...cle.com, tony.luck@...el.com, mingo@...nel.org,
	grant.likely@...aro.org, hpa@...or.com, jiang.liu@...ux.intel.com,
	linux-kernel@...r.kernel.org, bhelgaas@...gle.com, jroedel@...e.de,
	tglx@...utronix.de, bp@...en8.de, gregkh@...uxfoundation.org,
	rdunlap@...radead.org, joro@...tes.org, yinghai@...nel.org,
	benh@...nel.crashing.org, rjw@...ysocki.net, wangyijing@...wei.com
Subject: [tip:x86/apic] x86, irq:
  Kill x86_io_apic_ops.print_entries and related interfaces

Commit-ID:  49750862a592d9a02de328f6f21ed2037b12e2af
Gitweb:     http://git.kernel.org/tip/49750862a592d9a02de328f6f21ed2037b12e2af
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Tue, 25 Nov 2014 15:49:36 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Wed, 26 Nov 2014 23:52:47 +0100

x86, irq: Kill x86_io_apic_ops.print_entries and related interfaces

Now there is no user of x86_io_apic_ops.print_entries anymore, so kill
it.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: iommu@...ts.linux-foundation.org
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Rafael J. Wysocki <rjw@...ysocki.net>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Yijing Wang <wangyijing@...wei.com>
Cc: Grant Likely <grant.likely@...aro.org>
Link: http://lkml.kernel.org/r/1416901802-24211-13-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Joerg Roedel <jroedel@...e.de>
---
 arch/x86/include/asm/io_apic.h      |  3 --
 arch/x86/include/asm/x86_init.h     |  1 -
 arch/x86/kernel/apic/io_apic.c      | 55 -------------------------------------
 arch/x86/kernel/x86_init.c          |  1 -
 drivers/iommu/intel_irq_remapping.c |  7 -----
 5 files changed, 67 deletions(-)

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 3162a91f..8b4fc2d 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -225,8 +225,6 @@ extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg);
 extern void native_io_apic_write(unsigned int apic, unsigned int reg, unsigned int val);
 extern void native_io_apic_modify(unsigned int apic, unsigned int reg, unsigned int val);
 extern void native_disable_io_apic(void);
-extern void native_io_apic_print_entries(unsigned int apic, unsigned int nr_entries);
-extern void intel_ir_io_apic_print_entries(unsigned int apic, unsigned int nr_entries);
 extern int native_ioapic_set_affinity(struct irq_data *,
 				      const struct cpumask *,
 				      bool);
@@ -290,7 +288,6 @@ static inline void disable_ioapic_support(void) { }
 #define native_io_apic_write		NULL
 #define native_io_apic_modify		NULL
 #define native_disable_io_apic		NULL
-#define native_io_apic_print_entries	NULL
 #define native_ioapic_set_affinity	NULL
 #define native_setup_ioapic_entry	NULL
 #define native_eoi_ioapic_pin		NULL
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 1649bb9..2924bc8 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -191,7 +191,6 @@ struct x86_io_apic_ops {
 	void		(*write)  (unsigned int apic, unsigned int reg, unsigned int value);
 	void		(*modify) (unsigned int apic, unsigned int reg, unsigned int value);
 	void		(*disable)(void);
-	void		(*print_entries)(unsigned int apic, unsigned int nr_entries);
 	int		(*set_affinity)(struct irq_data *data,
 					const struct cpumask *mask,
 					bool force);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 551108e..42dc3ee 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1332,61 +1332,6 @@ static void __init setup_IO_APIC_irqs(void)
 	}
 }
 
-void native_io_apic_print_entries(unsigned int apic, unsigned int nr_entries)
-{
-	int i;
-
-	pr_debug(" NR Dst Mask Trig IRR Pol Stat Dmod Deli Vect:\n");
-
-	for (i = 0; i <= nr_entries; i++) {
-		struct IO_APIC_route_entry entry;
-
-		entry = ioapic_read_entry(apic, i);
-
-		pr_debug(" %02x %02X  ", i, entry.dest);
-		pr_cont("%1d    %1d    %1d   %1d   %1d    "
-			"%1d    %1d    %02X\n",
-			entry.mask,
-			entry.trigger,
-			entry.irr,
-			entry.polarity,
-			entry.delivery_status,
-			entry.dest_mode,
-			entry.delivery_mode,
-			entry.vector);
-	}
-}
-
-void intel_ir_io_apic_print_entries(unsigned int apic,
-				    unsigned int nr_entries)
-{
-	int i;
-
-	pr_debug(" NR Indx Fmt Mask Trig IRR Pol Stat Indx2 Zero Vect:\n");
-
-	for (i = 0; i <= nr_entries; i++) {
-		struct IR_IO_APIC_route_entry *ir_entry;
-		struct IO_APIC_route_entry entry;
-
-		entry = ioapic_read_entry(apic, i);
-
-		ir_entry = (struct IR_IO_APIC_route_entry *)&entry;
-
-		pr_debug(" %02x %04X ", i, ir_entry->index);
-		pr_cont("%1d   %1d    %1d    %1d   %1d   "
-			"%1d    %1d     %X    %02X\n",
-			ir_entry->format,
-			ir_entry->mask,
-			ir_entry->trigger,
-			ir_entry->irr,
-			ir_entry->polarity,
-			ir_entry->delivery_status,
-			ir_entry->index2,
-			ir_entry->zero,
-			ir_entry->vector);
-	}
-}
-
 void ioapic_zap_locks(void)
 {
 	raw_spin_lock_init(&ioapic_lock);
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index b094d69..d6f36c7 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -144,7 +144,6 @@ struct x86_io_apic_ops x86_io_apic_ops = {
 	.write			= native_io_apic_write,
 	.modify			= native_io_apic_modify,
 	.disable		= native_disable_io_apic,
-	.print_entries		= native_io_apic_print_entries,
 	.set_affinity		= native_ioapic_set_affinity,
 	.setup_entry		= native_setup_ioapic_entry,
 	.eoi_ioapic_pin		= native_eoi_ioapic_pin,
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index cb00d6b..95c4482 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -681,13 +681,6 @@ static int __init intel_enable_irq_remapping(void)
 
 	irq_remapping_enabled = 1;
 
-	/*
-	 * VT-d has a different layout for IO-APIC entries when
-	 * interrupt remapping is enabled. So it needs a special routine
-	 * to print IO-APIC entries for debugging purposes too.
-	 */
-	x86_io_apic_ops.print_entries = intel_ir_io_apic_print_entries;
-
 	pr_info("Enabled IRQ remapping in %s mode\n", eim ? "x2apic" : "xapic");
 
 	return eim ? IRQ_REMAP_X2APIC_MODE : IRQ_REMAP_XAPIC_MODE;
--
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