[Xen-devel] Patch "Revert "genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier"" has been added to the 2.6.32-longterm tree

[<gregkh@xxxxxxx>]

This is a note to let you know that I've just added the patch titled

    Revert "genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier"

to the 2.6.32-longterm tree which can be found at:
    
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary

The filename of the patch is:
     0001-Revert-genirq-Add-IRQF_RESUME_EARLY-and-resume-such-.patch
and it can be found in the queue-2.6.32 subdirectory.

If you, or anyone else, feels it should not be added to the 2.6.32 longterm 
tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 402a1955b2c0072733b13500b7f6378149e1f72e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@xxxxxxx>
Date: Tue, 8 Nov 2011 15:40:42 -0800
Subject: Revert "genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier"

This reverts commit 0f12a6ad9fa3a03f2bcee36c9cb704821e244c40.

It causes too many build errors and needs to be done properly.

Reported-by: Jiri Slaby <jslaby@xxxxxxx>
Reported-by: Christoph Biedl <linux-kernel.bfrz@xxxxxxxxxxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxx>
Cc: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@xxxxxxxxxx>
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>


---
 drivers/base/sys.c        |    6 ------
 drivers/xen/events.c      |    2 +-
 include/linux/interrupt.h |    5 -----
 kernel/irq/pm.c           |   35 +++++++----------------------------
 4 files changed, 8 insertions(+), 40 deletions(-)

--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -471,12 +471,6 @@ int sysdev_resume(void)
 {
        struct sysdev_class *cls;
 
-       /*
-        * Called from syscore in mainline but called directly here
-        * since syscore does not exist in this tree.
-        */
-       irq_pm_syscore_resume();
-
        WARN_ONCE(!irqs_disabled(),
                "Interrupts enabled while resuming system devices\n");
 
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -536,7 +536,7 @@ int bind_ipi_to_irqhandler(enum ipi_vect
        if (irq < 0)
                return irq;
 
-       irqflags |= IRQF_NO_SUSPEND | IRQF_FORCE_RESUME | IRQF_EARLY_RESUME;
+       irqflags |= IRQF_NO_SUSPEND | IRQF_FORCE_RESUME;
        retval = request_irq(irq, handler, irqflags, devname, dev_id);
        if (retval != 0) {
                unbind_from_irq(irq);
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -54,8 +54,6 @@
  *                irq line disabled until the threaded handler has been run.
  * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend
  * IRQF_FORCE_RESUME - Force enable it on resume even if IRQF_NO_SUSPEND is set
- * IRQF_EARLY_RESUME - Resume IRQ early during syscore instead of at device
- *                resume time.
  */
 #define IRQF_DISABLED          0x00000020
 #define IRQF_SAMPLE_RANDOM     0x00000040
@@ -68,7 +66,6 @@
 #define IRQF_ONESHOT           0x00002000
 #define IRQF_NO_SUSPEND                0x00004000
 #define IRQF_FORCE_RESUME      0x00008000
-#define IRQF_EARLY_RESUME      0x00020000
 
 #define IRQF_TIMER             (__IRQF_TIMER | IRQF_NO_SUSPEND)
 
@@ -199,7 +196,6 @@ extern void enable_irq(unsigned int irq)
 #ifdef CONFIG_GENERIC_HARDIRQS
 extern void suspend_device_irqs(void);
 extern void resume_device_irqs(void);
-extern void irq_pm_syscore_resume(void);
 #ifdef CONFIG_PM_SLEEP
 extern int check_wakeup_irqs(void);
 #else
@@ -208,7 +204,6 @@ static inline int check_wakeup_irqs(void
 #else
 static inline void suspend_device_irqs(void) { };
 static inline void resume_device_irqs(void) { };
-static inline void irq_pm_syscore_resume(void) { };
 static inline int check_wakeup_irqs(void) { return 0; }
 #endif
 
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -39,46 +39,25 @@ void suspend_device_irqs(void)
 }
 EXPORT_SYMBOL_GPL(suspend_device_irqs);
 
-static void resume_irqs(bool want_early)
+/**
+ * resume_device_irqs - enable interrupt lines disabled by 
suspend_device_irqs()
+ *
+ * Enable all interrupt lines previously disabled by suspend_device_irqs() that
+ * have the IRQ_SUSPENDED flag set.
+ */
+void resume_device_irqs(void)
 {
        struct irq_desc *desc;
        int irq;
 
        for_each_irq_desc(irq, desc) {
                unsigned long flags;
-               bool is_early = desc->action &&
-                       desc->action->flags & IRQF_EARLY_RESUME;
-
-               if (is_early != want_early)
-                       continue;
 
                spin_lock_irqsave(&desc->lock, flags);
                __enable_irq(desc, irq, true);
                spin_unlock_irqrestore(&desc->lock, flags);
        }
 }
-
-/**
- * irq_pm_syscore_ops - enable interrupt lines early
- *
- * Enable all interrupt lines with %IRQF_EARLY_RESUME set.
- */
-void irq_pm_syscore_resume(void)
-{
-       resume_irqs(true);
-}
-
-/**
- * resume_device_irqs - enable interrupt lines disabled by 
suspend_device_irqs()
- *
- * Enable all non-%IRQF_EARLY_RESUME interrupt lines previously
- * disabled by suspend_device_irqs() that have the IRQS_SUSPENDED flag
- * set as well as those with %IRQF_FORCE_RESUME.
- */
-void resume_device_irqs(void)
-{
-       resume_irqs(false);
-}
 EXPORT_SYMBOL_GPL(resume_device_irqs);
 
 /**


Patches currently in longterm-queue-2.6.32 which might be from gregkh@xxxxxxx 
are

/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/make-scsi_free_queue-kill-pending-scsi-commands.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/0003-Revert-powerpc-mpic-Fix-problem-that-affinity-is-not.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/netlink-validate-nla_msecs-length.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/mtd-mtdchar-add-missing-initializer-on-raw-write.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/pm-suspend-off-by-one-in-pm_suspend.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/st-fix-race-in-st_scsi_execute_end.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/0001-Revert-genirq-Add-IRQF_RESUME_EARLY-and-resume-such-.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/nfs-sunrpc-don-t-use-a-credential-with-extra-groups.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/0002-Revert-ASoC-wm8940-Properly-set-codec-dapm.bias_leve.patch

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