Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sunhme: Fix qfe parent detection.
  sparc64: Fix lost interrupts on sun4u.
  sparc64: wait_event_interruptible_timeout may return -ERESTARTSYS
  jsflash: stop defining MAJOR_NR

diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index e289376198eb2be4e722b5cbf1a31d440c580631..1c378d8e90c588ce722a9d6abfb935f5cb6e62d9 100644 (file)
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -323,17 +323,25 @@ static void sun4u_set_affinity(unsigned int virt_irq,
        sun4u_irq_enable(virt_irq);
 }
 
+/* Don't do anything.  The desc->status check for IRQ_DISABLED in
+ * handler_irq() will skip the handler call and that will leave the
+ * interrupt in the sent state.  The next ->enable() call will hit the
+ * ICLR register to reset the state machine.
+ *
+ * This scheme is necessary, instead of clearing the Valid bit in the
+ * IMAP register, to handle the case of IMAP registers being shared by
+ * multiple INOs (and thus ICLR registers).  Since we use a different
+ * virtual IRQ for each shared IMAP instance, the generic code thinks
+ * there is only one user so it prematurely calls ->disable() on
+ * free_irq().
+ *
+ * We have to provide an explicit ->disable() method instead of using
+ * NULL to get the default.  The reason is that if the generic code
+ * sees that, it also hooks up a default ->shutdown method which
+ * invokes ->mask() which we do not want.  See irq_chip_set_defaults().
+ */
 static void sun4u_irq_disable(unsigned int virt_irq)
 {
-       struct irq_handler_data *data = get_irq_chip_data(virt_irq);
-
-       if (likely(data)) {
-               unsigned long imap = data->imap;
-               unsigned long tmp = upa_readq(imap);
-
-               tmp &= ~IMAP_VALID;
-               upa_writeq(tmp, imap);
-       }
 }
 
 static void sun4u_irq_eoi(unsigned int virt_irq)
@@ -746,7 +754,8 @@ void handler_irq(int irq, struct pt_regs *regs)
 
                desc = irq_desc + virt_irq;
 
-               desc->handle_irq(virt_irq, desc);
+               if (!(desc->status & IRQ_DISABLED))
+                       desc->handle_irq(virt_irq, desc);
 
                bucket_pa = next_pa;
        }

diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index d4fb4acdbebdfc9ca70d28a3abb9e0b88753dfd0..4e9bd380a5c2ea2b50661627e439da2a9bc2712e 100644 (file)
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -2649,8 +2649,6 @@ static int __devinit happy_meal_sbus_probe_one(struct of_device *op, int is_qfe)
        int err = -ENODEV;
 
        sbus_dp = to_of_device(op->dev.parent)->node;
-       if (is_qfe)
-               sbus_dp = to_of_device(op->dev.parent->parent)->node;
 
        /* We can match PCI devices too, do not accept those here. */
        if (strcmp(sbus_dp->name, "sbus"))

diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c
index f08e169ba1b51a150372753672741df102818591..7e30e5f6e032a30bbdae7d89355b49122b4f6b42 100644 (file)
--- a/drivers/sbus/char/bbc_i2c.c
+++ b/drivers/sbus/char/bbc_i2c.c
@@ -129,7 +129,7 @@ static int wait_for_pin(struct bbc_i2c_bus *bp, u8 *status)
        bp->waiting = 1;
        add_wait_queue(&bp->wq, &wait);
        while (limit-- > 0) {
-               unsigned long val;
+               long val;
 
                val = wait_event_interruptible_timeout(
                                bp->wq,

diff --git a/drivers/sbus/char/jsflash.c b/drivers/sbus/char/jsflash.c
index a9a9893a5f95b4867328b9396e2e097071e428ba..e6d1fc8c54f151514aa6057df9e183526b53938c 100644 (file)
--- a/drivers/sbus/char/jsflash.c
+++ b/drivers/sbus/char/jsflash.c
@@ -38,9 +38,6 @@
 #include <linux/string.h>
 #include <linux/genhd.h>
 #include <linux/blkdev.h>
-
-#define MAJOR_NR       JSFD_MAJOR
-
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>