x86: io-apic - get rid of __DO_ACTION macro

Replace __DO_ACTION macro with io_apic_modify_irq function.
This allow us to 'grep' definitions being hided by
__DO_ACTION macro:

	__unmask_IO_APIC_irq
	__mask_IO_APIC_irq
	__mask_and_edge_IO_APIC_irq
	__unmask_and_level_IO_APIC_irq

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 52 insertions, 51 deletions

diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 12e59df026db..ac47384724e3 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -643,65 +643,66 @@ static void __init replace_pin_at_irq(unsigned int irq,
                 add_pin_to_irq(irq, newapic, newpin);
 }
 
-#define __DO_ACTION(R, ACTION_ENABLE, ACTION_DISABLE, FINAL)            \
-                                                                        \
-{                                                                       \
-        int pin;                                                        \
-        struct irq_cfg *cfg;                                            \
-        struct irq_pin_list *entry;                                     \
-                                                                        \
-        cfg = irq_cfg(irq);                                             \
-        entry = cfg->irq_2_pin;                                         \
-        for (;;) {                                                      \
-                unsigned int reg;                                       \
-                if (!entry)                                             \
-                        break;                                          \
-                pin = entry->pin;                                       \
-                reg = io_apic_read(entry->apic, 0x10 + R + pin*2);      \
-                reg ACTION_DISABLE;                                     \
-                reg ACTION_ENABLE;                                      \
-                io_apic_modify(entry->apic, 0x10 + R + pin*2, reg);     \
-                FINAL;                                                  \
-                if (!entry->next)                                       \
-                        break;                                          \
-                entry = entry->next;                                    \
-        }                                                               \
-}
-
-#define DO_ACTION(name,R, ACTION_ENABLE, ACTION_DISABLE, FINAL)         \
-                                                                        \
-        static void name##_IO_APIC_irq (unsigned int irq)               \
-        __DO_ACTION(R, ACTION_ENABLE, ACTION_DISABLE, FINAL)
-
-/* mask = 0 */
-DO_ACTION(__unmask,     0, |= 0, &= ~IO_APIC_REDIR_MASKED, )
+static inline void io_apic_modify_irq(unsigned int irq,
+                                int mask_and, int mask_or,
+                                void (*final)(struct irq_pin_list *entry))
+{
+        int pin;
+        struct irq_cfg *cfg;
+        struct irq_pin_list *entry;
+
+        cfg = irq_cfg(irq);
+        for (entry = cfg->irq_2_pin; entry != NULL; entry = entry->next) {
+                unsigned int reg;
+                pin = entry->pin;
+                reg = io_apic_read(entry->apic, 0x10 + pin * 2);
+                reg &= mask_and;
+                reg |= mask_or;
+                io_apic_modify(entry->apic, 0x10 + pin * 2, reg);
+                if (final)
+                        final(entry);
+        }
+}
+
+static void __unmask_IO_APIC_irq(unsigned int irq)
+{
+        io_apic_modify_irq(irq, ~IO_APIC_REDIR_MASKED, 0, NULL);
+}
 
 #ifdef CONFIG_X86_64
-/*
- * Synchronize the IO-APIC and the CPU by doing
- * a dummy read from the IO-APIC
- */
-static inline void io_apic_sync(unsigned int apic)
+void io_apic_sync(struct irq_pin_list *entry)
 {
-        struct io_apic __iomem *io_apic = io_apic_base(apic);
+        /*
+         * Synchronize the IO-APIC and the CPU by doing
+         * a dummy read from the IO-APIC
+         */
+        struct io_apic __iomem *io_apic;
+        io_apic = io_apic_base(entry->apic);
         readl(&io_apic->data);
 }
 
-/* mask = 1 */
-DO_ACTION(__mask,       0, |= IO_APIC_REDIR_MASKED, &= ~0, io_apic_sync(entry->apic))
-
-#else
-
-/* mask = 1 */
-DO_ACTION(__mask,       0, |= IO_APIC_REDIR_MASKED, &= ~0, )
-
-/* mask = 1, trigger = 0 */
-DO_ACTION(__mask_and_edge, 0, |= IO_APIC_REDIR_MASKED, &= ~IO_APIC_REDIR_LEVEL_TRIGGER, )
+static void __mask_IO_APIC_irq(unsigned int irq)
+{
+        io_apic_modify_irq(irq, ~0, IO_APIC_REDIR_MASKED, &io_apic_sync);
+}
+#else /* CONFIG_X86_32 */
+static void __mask_IO_APIC_irq(unsigned int irq)
+{
+        io_apic_modify_irq(irq, ~0, IO_APIC_REDIR_MASKED, NULL);
+}
 
-/* mask = 0, trigger = 1 */
-DO_ACTION(__unmask_and_level, 0, |= IO_APIC_REDIR_LEVEL_TRIGGER, &= ~IO_APIC_REDIR_MASKED, )
+static void __mask_and_edge_IO_APIC_irq(unsigned int irq)
+{
+        io_apic_modify_irq(irq, ~IO_APIC_REDIR_LEVEL_TRIGGER,
+                        IO_APIC_REDIR_MASKED, NULL);
+}
 
-#endif
+static void __unmask_and_level_IO_APIC_irq(unsigned int irq)
+{
+        io_apic_modify_irq(irq, ~IO_APIC_REDIR_MASKED,
+                        IO_APIC_REDIR_LEVEL_TRIGGER, NULL);
+}
+#endif /* CONFIG_X86_32 */
 
 static void mask_IO_APIC_irq (unsigned int irq)
 {