x86/kernel: Audit and remove any unnecessary uses of module.h

Historically a lot of these existed because we did not have
a distinction between what was modular code and what was providing
support to modules via EXPORT_SYMBOL and friends.  That changed
when we forked out support for the latter into the export.h file.

This means we should be able to reduce the usage of module.h
in code that is obj-y Makefile or bool Kconfig.  The advantage
in doing so is that module.h itself sources about 15 other headers;
adding significantly to what we feed cpp, and it can obscure what
headers we are effectively using.

Since module.h was the source for init.h (for __init) and for
export.h (for EXPORT_SYMBOL) we consider each obj-y/bool instance
for the presence of either and replace as needed.  Build testing
revealed some implicit header usage that was fixed up accordingly.

Note that some bool/obj-y instances remain since module.h is
the header for some exception table entry stuff, and for things
like __init_or_module (code that is tossed when MODULES=n).

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20160714001901.31603-4-paul.gortmaker@windriver.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

9 files changed, 7 insertions, 9 deletions

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 60078a67d7e3..60244a4ebe30 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -23,7 +23,7 @@
 #include <linux/bootmem.h>
 #include <linux/ftrace.h>
 #include <linux/ioport.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/syscore_ops.h>
 #include <linux/delay.h>
 #include <linux/timex.h>
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 76f89e2b245a..a09a926b12fc 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -15,7 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/ctype.h>
 #include <linux/hardirq.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <asm/smp.h>
 #include <asm/apic.h>
 #include <asm/ipi.h>
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index 13d19ed58514..563d9207b2bc 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -11,7 +11,6 @@
 
 #include <linux/threads.h>
 #include <linux/cpumask.h>
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/ctype.h>
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index 7788ce643bf4..f29501e1a5c1 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -16,7 +16,7 @@
 #include <linux/notifier.h>
 #include <linux/kprobes.h>
 #include <linux/nmi.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/delay.h>
 
 #ifdef CONFIG_HARDLOCKUP_DETECTOR
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 446702ed99dc..73e58103ed82 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -39,7 +39,7 @@
 #include <linux/mc146818rtc.h>
 #include <linux/compiler.h>
 #include <linux/acpi.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/syscore_ops.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c
index 2a0f225afebd..3a205d4a12d0 100644
--- a/arch/x86/kernel/apic/ipi.c
+++ b/arch/x86/kernel/apic/ipi.c
@@ -8,7 +8,6 @@
 #include <linux/mc146818rtc.h>
 #include <linux/cache.h>
 #include <linux/cpu.h>
-#include <linux/module.h>
 
 #include <asm/smp.h>
 #include <asm/mtrr.h>
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index f316e34abb42..c1380621c896 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -8,7 +8,7 @@
  */
 #include <linux/threads.h>
 #include <linux/cpumask.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/ctype.h>
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 1793dba7a741..d4880a327181 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -11,7 +11,7 @@
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <linux/string.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/ctype.h>
 #include <linux/init.h>
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 29003154fafd..969505544267 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -12,7 +12,7 @@
 #include <linux/proc_fs.h>
 #include <linux/threads.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/string.h>
 #include <linux/ctype.h>
 #include <linux/sched.h>