[POWERPC] fsl_msi: few (mostly cosmetic) fixes

This patch fixes few cosmetic issues, also removes unused function,
makes some functions static and reduces #ifdef count.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 18 insertions, 25 deletions

diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 9d0685babbd5..2c5187cc8a24 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -36,12 +36,6 @@ static inline u32 fsl_msi_read(u32 __iomem *base, unsigned int reg)
         return in_be32(base + (reg >> 2));
 }
 
-static inline void fsl_msi_write(u32 __iomem *base,
-                                unsigned int reg, u32 value)
-{
-        out_be32(base + (reg >> 2), value);
-}
-
 /*
  * We do not need this actually. The MSIR register has been read once
  * in the cascade interrupt. So, this MSI interrupt has been acked
@@ -64,7 +58,7 @@ static int fsl_msi_host_map(struct irq_host *h, unsigned int virq,
 
         get_irq_desc(virq)->status |= IRQ_TYPE_EDGE_FALLING;
 
-        set_irq_chip_and_handler(virq, chip,  handle_edge_irq);
+        set_irq_chip_and_handler(virq, chip, handle_edge_irq);
 
         return 0;
 }
@@ -73,10 +67,11 @@ static struct irq_host_ops fsl_msi_host_ops = {
         .map = fsl_msi_host_map,
 };
 
-irq_hw_number_t fsl_msi_alloc_hwirqs(struct fsl_msi *msi, int num)
+static irq_hw_number_t fsl_msi_alloc_hwirqs(struct fsl_msi *msi, int num)
 {
         unsigned long flags;
-        int offset, order = get_count_order(num);
+        int order = get_count_order(num);
+        int offset;
 
         spin_lock_irqsave(&msi->bitmap_lock, flags);
 
@@ -91,7 +86,7 @@ irq_hw_number_t fsl_msi_alloc_hwirqs(struct fsl_msi *msi, int num)
         return offset;
 }
 
-void fsl_msi_free_hwirqs(struct fsl_msi *msi, int offset, int num)
+static void fsl_msi_free_hwirqs(struct fsl_msi *msi, int offset, int num)
 {
         unsigned long flags;
         int order = get_count_order(num);
@@ -106,7 +101,8 @@ void fsl_msi_free_hwirqs(struct fsl_msi *msi, int offset, int num)
 
 static int fsl_msi_free_dt_hwirqs(struct fsl_msi *msi)
 {
-        int i, len;
+        int i;
+        int len;
         const u32 *p;
 
         bitmap_allocate_region(msi->fsl_msi_bitmap, 0,
@@ -138,9 +134,8 @@ static int fsl_msi_free_dt_hwirqs(struct fsl_msi *msi)
 
 static int fsl_msi_init_allocator(struct fsl_msi *msi_data)
 {
-        int rc, size;
-
-        size = BITS_TO_LONGS(NR_MSI_IRQS) * sizeof(u32);
+        int rc;
+        int size = BITS_TO_LONGS(NR_MSI_IRQS) * sizeof(u32);
 
         msi_data->fsl_msi_bitmap = kzalloc(size, GFP_KERNEL);
 
@@ -238,7 +233,7 @@ out_free:
         return rc;
 }
 
-void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
+static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
 {
         unsigned int cascade_irq;
         struct fsl_msi *msi_data = fsl_msi;
@@ -260,7 +255,7 @@ void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
         if (unlikely(desc->status & IRQ_INPROGRESS))
                 goto unlock;
 
-        msir_index = (int)(desc->handler_data);
+        msir_index = (int)desc->handler_data;
 
         if (msir_index >= NR_MSI_REG)
                 cascade_irq = NO_IRQ;
@@ -280,12 +275,12 @@ void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc)
                 intr_index = ffs(msir_value) - 1;
 
                 cascade_irq = irq_linear_revmap(msi_data->irqhost,
-                                (msir_index * IRQS_PER_MSI_REG +
-                                        intr_index + have_shift));
+                                msir_index * IRQS_PER_MSI_REG +
+                                        intr_index + have_shift);
                 if (cascade_irq != NO_IRQ)
                         generic_handle_irq(cascade_irq);
-                have_shift += (intr_index + 1);
-                msir_value = (msir_value >> (intr_index + 1));
+                have_shift += intr_index + 1;
+                msir_value = msir_value >> (intr_index + 1);
         }
         desc->status &= ~IRQ_INPROGRESS;
 
@@ -311,7 +306,7 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev,
         int rc;
         int virt_msir;
         const u32 *p;
-        struct fsl_msi_feature *tmp_data;
+        struct fsl_msi_feature *features = match->data;
 
         printk(KERN_DEBUG "Setting up Freescale MSI support\n");
 
@@ -348,14 +343,12 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev,
                 goto error_out;
         }
 
-        tmp_data = (struct fsl_msi_feature *)match->data;
-
-        msi->feature = tmp_data->fsl_pic_ip;
+        msi->feature = features->fsl_pic_ip;
 
         msi->irqhost->host_data = msi;
 
         msi->msi_addr_hi = 0x0;
-        msi->msi_addr_lo = res.start + tmp_data->msiir_offset;
+        msi->msi_addr_lo = res.start + features->msiir_offset;
 
         rc = fsl_msi_init_allocator(msi);
         if (rc) {