3 files changed, 68 insertions, 55 deletions

diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index db60539bf67a..699e3422ad93 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -359,9 +359,16 @@ fail:
         return error;
 }
 
-static struct device *next_device(struct klist_iter *i) {
-        struct klist_node * n = klist_next(i);
-        return n ? container_of(n, struct device, knode_parent) : NULL;
+static int
+find_quicksilver(struct device *dev, void *data)
+{
+        struct parisc_device **lba = data;
+        struct parisc_device *padev = to_parisc_device(dev);
+
+        if (IS_QUICKSILVER(padev))
+                *lba = padev;
+
+        return 0;
 }
 
 static int
@@ -372,8 +379,6 @@ parisc_agp_init(void)
         int err = -1;
         struct parisc_device *sba = NULL, *lba = NULL;
         struct lba_device *lbadev = NULL;
-        struct device *dev = NULL;
-        struct klist_iter i;
 
         if (!sba_list)
                 goto out;
@@ -386,13 +391,7 @@ parisc_agp_init(void)
         }
 
         /* Now search our Pluto for our precious AGP device... */
-        klist_iter_init(&sba->dev.klist_children, &i);
-        while ((dev = next_device(&i))) {
-                struct parisc_device *padev = to_parisc_device(dev);
-                if (IS_QUICKSILVER(padev))
-                        lba = padev;
-        }
-        klist_iter_exit(&i);
+        device_for_each_child(&sba->dev, &lba, find_quicksilver);
 
         if (!lba) {
                 printk(KERN_INFO DRVPFX "No AGP devices found.\n");
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index e76db9e4d504..d33632917696 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -186,29 +186,34 @@ void gsc_asic_assign_irq(struct gsc_asic *asic, int local_irq, int *irqp)
         *irqp = irq;
 }
 
-static struct device *next_device(struct klist_iter *i)
+struct gsc_fixup_struct {
+        void (*choose_irq)(struct parisc_device *, void *);
+        void *ctrl;
+};
+
+static int gsc_fixup_irqs_callback(struct device *dev, void *data)
 {
-        struct klist_node * n = klist_next(i);
-        return n ? container_of(n, struct device, knode_parent) : NULL;
+        struct parisc_device *padev = to_parisc_device(dev);
+        struct gsc_fixup_struct *gf = data;
+
+        /* work-around for 715/64 and others which have parent
+           at path [5] and children at path [5/0/x] */
+        if (padev->id.hw_type == HPHW_FAULTY)
+                gsc_fixup_irqs(padev, gf->ctrl, gf->choose_irq);
+        gf->choose_irq(padev, gf->ctrl);
+
+        return 0;
 }
 
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
                         void (*choose_irq)(struct parisc_device *, void *))
 {
-        struct device *dev;
-        struct klist_iter i;
-
-        klist_iter_init(&parent->dev.klist_children, &i);
-        while ((dev = next_device(&i))) {
-                struct parisc_device *padev = to_parisc_device(dev);
-
-                /* work-around for 715/64 and others which have parent 
-                   at path [5] and children at path [5/0/x] */
-                if (padev->id.hw_type == HPHW_FAULTY)
-                        return gsc_fixup_irqs(padev, ctrl, choose_irq);
-                choose_irq(padev, ctrl);
-        }
-        klist_iter_exit(&i);
+        struct gsc_fixup_struct data = {
+                .choose_irq     = choose_irq,
+                .ctrl           = ctrl,
+        };
+
+        device_for_each_child(&parent->dev, &data, gsc_fixup_irqs_callback);
 }
 
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic)
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index a70cf16ee1ad..6aad8546fd24 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1206,31 +1206,49 @@ sba_alloc_pdir(unsigned int pdir_size)
         return (void *) pdir_base;
 }
 
-static struct device *next_device(struct klist_iter *i)
+struct ibase_data_struct {
+        struct ioc *ioc;
+        int ioc_num;
+};
+
+static int setup_ibase_imask_callback(struct device *dev, void *data)
 {
-        struct klist_node * n = klist_next(i);
-        return n ? container_of(n, struct device, knode_parent) : NULL;
+        /* lba_set_iregs() is in drivers/parisc/lba_pci.c */
+        extern void lba_set_iregs(struct parisc_device *, u32, u32);
+        struct parisc_device *lba = to_parisc_device(dev);
+        struct ibase_data_struct *ibd = data;
+        int rope_num = (lba->hpa.start >> 13) & 0xf;
+        if (rope_num >> 3 == ibd->ioc_num)
+                lba_set_iregs(lba, ibd->ioc->ibase, ibd->ioc->imask);
+        return 0;
 }
 
 /* setup Mercury or Elroy IBASE/IMASK registers. */
 static void 
 setup_ibase_imask(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 {
-        /* lba_set_iregs() is in drivers/parisc/lba_pci.c */
-        extern void lba_set_iregs(struct parisc_device *, u32, u32);
-        struct device *dev;
-        struct klist_iter i;
-
-        klist_iter_init(&sba->dev.klist_children, &i);
-        while ((dev = next_device(&i))) {
-                struct parisc_device *lba = to_parisc_device(dev);
-                int rope_num = (lba->hpa.start >> 13) & 0xf;
-                if (rope_num >> 3 == ioc_num)
-                        lba_set_iregs(lba, ioc->ibase, ioc->imask);
-        }
-        klist_iter_exit(&i);
+        struct ibase_data_struct ibase_data = {
+                .ioc            = ioc,
+                .ioc_num        = ioc_num,
+        };
+
+        device_for_each_child(&sba->dev, &ibase_data,
+                              setup_ibase_imask_callback);
 }
 
+#ifdef SBA_AGP_SUPPORT
+static int
+sba_ioc_find_quicksilver(struct device *dev, void *data)
+{
+        int *agp_found = data;
+        struct parisc_device *lba = to_parisc_device(dev);
+
+        if (IS_QUICKSILVER(lba))
+                *agp_found = 1;
+        return 0;
+}
+#endif
+
 static void
 sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 {
@@ -1332,9 +1350,6 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
         WRITE_REG(ioc->ibase | 31, ioc->ioc_hpa + IOC_PCOM);
 
 #ifdef SBA_AGP_SUPPORT
-{
-        struct klist_iter i;
-        struct device *dev = NULL;
 
         /*
         ** If an AGP device is present, only use half of the IOV space
@@ -1344,13 +1359,7 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
         ** We program the next pdir index after we stop w/ a key for
         ** the GART code to handshake on.
         */
-        klist_iter_init(&sba->dev.klist_children, &i);
-        while ((dev = next_device(&i))) {
-                struct parisc_device *lba = to_parisc_device(dev);
-                if (IS_QUICKSILVER(lba))
-                        agp_found = 1;
-        }
-        klist_iter_exit(&i);
+        device_for_each_child(&sba->dev, &agp_found, sba_ioc_find_quicksilver);
 
         if (agp_found && sba_reserve_agpgart) {
                 printk(KERN_INFO "%s: reserving %dMb of IOVA space for agpgart\n",