linux-kernel - [tip:x86/timers] x86: Don't include asm/x86

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Message-ID: <tip-0f5a0f4f062cc19090a87f9eb8cb79c7c2e4db19@git.kernel.org>
Date:   Thu, 19 Oct 2017 06:45:50 -0700
From:   tip-bot for Arnd Bergmann <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, tglx@...utronix.de, joro@...tes.org,
        linux-kernel@...r.kernel.org, mingo@...nel.org, arnd@...db.de
Subject: [tip:x86/timers] x86: Don't include asm/x86_init.h in asm/setup.h

Commit-ID:  0f5a0f4f062cc19090a87f9eb8cb79c7c2e4db19
Gitweb:     https://git.kernel.org/tip/0f5a0f4f062cc19090a87f9eb8cb79c7c2e4db19
Author:     Arnd Bergmann <arnd@...db.de>
AuthorDate: Thu, 19 Oct 2017 12:53:02 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 19 Oct 2017 15:41:18 +0200

x86: Don't include asm/x86_init.h in asm/setup.h

This is a preparation to allow using 'struct timespec64' in asm/x86_init.h.

Unfortunately, using a forward declaration for timespec64 is not possible
since it is defined as a macro on 64-bit architectures, and including
linux/time64.h breaks compilation of arch/x86/boot/, which runs in realmode
and can't use many of the regular kernel headers.

As a workaround, stop including asm/x86_init.h. This works fine for the
realmode boot code since it does not require any of the x86_init.h
contents, and setup.h doesn't either.

However, a couple of other files need x86_init.h and rely on it being
included indirectly, so add an explicit include in there now.

[ tglx: Massaged changelog to 'imperative mood' ]

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: y2038@...ts.linaro.org
Cc: Joerg Roedel <joro@...tes.org>
Cc: iommu@...ts.linux-foundation.org
Link: https://lkml.kernel.org/r/20171019105451.2892046-1-arnd@arndb.de

---
 arch/x86/include/asm/setup.h            | 1 -
 arch/x86/kernel/platform-quirks.c       | 1 +
 arch/x86/platform/ce4100/ce4100.c       | 1 +
 arch/x86/platform/intel-mid/intel-mid.c | 1 +
 arch/x86/platform/olpc/olpc.c           | 1 +
 drivers/iommu/dmar.c                    | 1 +
 6 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index a65cf54..deed841 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -27,7 +27,6 @@
 
 #ifndef __ASSEMBLY__
 #include <asm/bootparam.h>
-#include <asm/x86_init.h>
 
 extern u64 relocated_ramdisk;
 
diff --git a/arch/x86/kernel/platform-quirks.c b/arch/x86/kernel/platform-quirks.c
index 502a77d..d900c7b 100644
--- a/arch/x86/kernel/platform-quirks.c
+++ b/arch/x86/kernel/platform-quirks.c
@@ -3,6 +3,7 @@
 
 #include <asm/setup.h>
 #include <asm/bios_ebda.h>
+#include <asm/x86_init.h>
 
 void __init x86_early_init_platform_quirks(void)
 {
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index ce4b067..8851963 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -22,6 +22,7 @@
 #include <asm/io.h>
 #include <asm/io_apic.h>
 #include <asm/emergency-restart.h>
+#include <asm/x86_init.h>
 
 /*
  * The CE4100 platform has an internal 8051 Microcontroller which is
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 86676ce..c632226 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -35,6 +35,7 @@
 #include <asm/intel_scu_ipc.h>
 #include <asm/apb_timer.h>
 #include <asm/reboot.h>
+#include <asm/x86_init.h>
 
 #include "intel_mid_weak_decls.h"
 
diff --git a/arch/x86/platform/olpc/olpc.c b/arch/x86/platform/olpc/olpc.c
index 7c3077e..11a54f3 100644
--- a/arch/x86/platform/olpc/olpc.c
+++ b/arch/x86/platform/olpc/olpc.c
@@ -26,6 +26,7 @@
 #include <asm/setup.h>
 #include <asm/olpc.h>
 #include <asm/olpc_ofw.h>
+#include <asm/x86_init.h>
 
 struct olpc_platform_t olpc_platform_info;
 EXPORT_SYMBOL_GPL(olpc_platform_info);
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 57c920c..ca507c5 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -41,6 +41,7 @@
 #include <linux/iommu.h>
 #include <asm/irq_remapping.h>
 #include <asm/iommu_table.h>
+#include <asm/x86_init.h>
 
 #include "irq_remapping.h"