[tip:irq/core] genirq: Drop 5 #included header files from irq.h

[tip-bot for Randy Dunlap]

Commit-ID:  e69c61dd050e410d78363e5fe6e56a9f719abdf5
Gitweb:     https://git.kernel.org/tip/e69c61dd050e410d78363e5fe6e56a9f719abdf5
Author:     Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
AuthorDate: Sat, 24 Feb 2018 21:22:18 -0800
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Sun, 25 Feb 2018 14:57:23 +0100

genirq: Drop 5 #included header files from irq.h

<linux/irq.h> does not use nor need several of its #included files,
so drop those header files from irq.h.

<linux/irq.h> is currently #included in around 1135 C source files
(oops, I didn't count other header files that #include it), making it
the 29th most-used header file.

Build tested on i386 and x86_64 * (allnoconfig, tiny.config, defconfig,
allyesconfig, and allmodconfig) and x64_64 allmodconfig + SMP=disabled.

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/02745e91-c117-74b5-d043-dceb3d4bb4e0@xxxxxxxxxxxxx

---
 include/linux/irq.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index a0231e96a578..979eed1b2654 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -10,18 +10,13 @@
  * Thanks. --rmk
  */
 
-#include <linux/smp.h>
-#include <linux/linkage.h>
 #include <linux/cache.h>
 #include <linux/spinlock.h>
 #include <linux/cpumask.h>
-#include <linux/gfp.h>
 #include <linux/irqhandler.h>
 #include <linux/irqreturn.h>
 #include <linux/irqnr.h>
-#include <linux/errno.h>
 #include <linux/topology.h>
-#include <linux/wait.h>
 #include <linux/io.h>
 #include <linux/slab.h>