Microblaze patches for 3.17-rc1

- Add new syscall and fix comment
 - Fix udelay implementation
 - Fix libgcc for modules
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Merge tag 'microblaze-3.17-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze updates from Michal Simek:
 - add new syscall and fix comment
 - fix udelay implementation
 - fix libgcc for modules

* tag 'microblaze-3.17-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Change libgcc-style functions from lib-y to obj-y
  microblaze: Wire-up renameat2 syscall
  microblaze: Add syscall number comment
  microblaze: delay.h fix udelay and ndelay for 8 bit args

arch/microblaze/include/asm/delay.h

@@ -61,13 +61,29 @@ extern inline void __udelay(unsigned int x)
 extern void __bad_udelay(void);		/* deliberately undefined */
 extern void __bad_ndelay(void);		/* deliberately undefined */
 
-#define udelay(n) (__builtin_constant_p(n) ? \
+#define udelay(n)						\
-	((n) > __MAX_UDELAY ? __bad_udelay() : __udelay((n) * (19 * HZ))) : \
+	({							\
-	__udelay((n) * (19 * HZ)))
+		if (__builtin_constant_p(n)) {			\
+			if ((n) / __MAX_UDELAY >= 1)		\
+				__bad_udelay();			\
+			else					\
+				__udelay((n) * (19 * HZ));	\
+		} else {					\
+			__udelay((n) * (19 * HZ));		\
+		}						\
+	})
 
-#define ndelay(n) (__builtin_constant_p(n) ? \
+#define ndelay(n)						\
-	((n) > __MAX_NDELAY ? __bad_ndelay() : __udelay((n) * HZ)) : \
+	({							\
-	__udelay((n) * HZ))
+		if (__builtin_constant_p(n)) {			\
+			if ((n) / __MAX_NDELAY >= 1)		\
+				__bad_ndelay();			\
+			else					\
+				__udelay((n) * HZ);		\
+		} else {					\
+			__udelay((n) * HZ);			\
+		}						\
+	})
 
 #define muldiv(a, b, c)		(((a)*(b))/(c))
 

arch/microblaze/include/uapi/asm/unistd.h

@@ -398,5 +398,6 @@
 #define __NR_finit_module	380
 #define __NR_sched_setattr	381
 #define __NR_sched_getattr	382
+#define __NR_renameat2		383
 
 #endif /* _UAPI_ASM_MICROBLAZE_UNISTD_H */

arch/microblaze/kernel/syscall_table.S

@@ -380,6 +380,7 @@ ENTRY(sys_call_table)
 	.long sys_process_vm_readv
 	.long sys_process_vm_writev
 	.long sys_kcmp
-	.long sys_finit_module
+	.long sys_finit_module		/* 380 */
 	.long sys_sched_setattr
 	.long sys_sched_getattr
+	.long sys_renameat2

arch/microblaze/lib/Makefile

@@ -18,14 +18,6 @@ endif
 
 lib-y += uaccess_old.o
 
-lib-y += ashldi3.o
+# libgcc-style stuff needed in the kernel
-lib-y += ashrdi3.o
+obj-y += ashldi3.o ashrdi3.o cmpdi2.o divsi3.o lshrdi3.o modsi3.o
-lib-y += cmpdi2.o
+obj-y += muldi3.o mulsi3.o ucmpdi2.o udivsi3.o umodsi3.o
-lib-y += divsi3.o
-lib-y += lshrdi3.o
-lib-y += modsi3.o
-lib-y += muldi3.o
-lib-y += mulsi3.o
-lib-y += ucmpdi2.o
-lib-y += udivsi3.o
-lib-y += umodsi3.o