remove some annoying warnings and fix snd modules build

SVN-Revision: 31365

target/linux/generic/patches-2.6.30/033-linux_unused_variable.patch

@@ -0,0 +1,11 @@
+--- a/include/linux/pagemap.h
++++ b/include/linux/pagemap.h
+@@ -422,7 +422,7 @@ static inline int fault_in_pages_writeab
+ 
+ static inline int fault_in_pages_readable(const char __user *uaddr, int size)
+ {
+-	volatile char c;
++	volatile char c __maybe_unused;
+ 	int ret;
+ 
+ 	if (unlikely(size == 0))

target/linux/generic/patches-2.6.30/034-ppc_unused_variables.patch

@@ -0,0 +1,20 @@
+--- a/arch/powerpc/include/asm/pgtable-ppc64.h
++++ b/arch/powerpc/include/asm/pgtable-ppc64.h
+@@ -226,7 +226,7 @@ static inline int __ptep_test_and_clear_
+ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
+ 				      pte_t *ptep)
+ {
+-	unsigned long old;
++	unsigned long old __maybe_unused;
+ 
+        	if ((pte_val(*ptep) & _PAGE_RW) == 0)
+        		return;
+@@ -236,7 +236,7 @@ static inline void ptep_set_wrprotect(st
+ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+ 					   unsigned long addr, pte_t *ptep)
+ {
+-	unsigned long old;
++	unsigned long old __maybe_unused;
+ 
+ 	if ((pte_val(*ptep) & _PAGE_RW) == 0)
+ 		return;

target/linux/generic/patches-2.6.30/035-snd-build-fixes.patch

@@ -0,0 +1,11 @@
+--- a/include/sound/soc-dai.h
++++ b/include/sound/soc-dai.h
+@@ -223,7 +223,7 @@ struct snd_soc_dai {
+ 	union {
+ 		struct snd_soc_codec *codec;
+ 		struct snd_soc_platform *platform;
+-	};
++	} parent;
+ 
+ 	struct list_head list;
+ };