diff --git a/[refs] b/[refs]
index d80c635d6c4e..7ad69a2028cc 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 29cf519ee086686e5f0fc91cbb2d601dd1190f9c
+refs/heads/master: 2809e80b8a73d556b2302e273966fb15db16c51e
diff --git a/trunk/MAINTAINERS b/trunk/MAINTAINERS
index b5ea4d033730..bbe49d8c22af 100644
--- a/trunk/MAINTAINERS
+++ b/trunk/MAINTAINERS
@@ -4945,6 +4945,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.gi
 F:	drivers/input/serio/i8042-unicore32io.h
 F:	drivers/i2c/busses/i2c-puv3.c
 F:	drivers/video/fb-puv3.c
+F:	drivers/rtc/rtc-puv3.c
 
 PMC SIERRA MaxRAID DRIVER
 M:	Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
diff --git a/trunk/arch/unicore32/Kconfig b/trunk/arch/unicore32/Kconfig
index d3a303246c9f..e57dcce9bfda 100644
--- a/trunk/arch/unicore32/Kconfig
+++ b/trunk/arch/unicore32/Kconfig
@@ -231,10 +231,6 @@ config PUV3_PWM
 	help
 	  Enable support for NB0916 PWM controllers
 
-config PUV3_RTC
-	tristate "PKUnity v3 RTC Support"
-	depends on !ARCH_FPGA
-
 if PUV3_NB0916
 
 menu "PKUnity NetBook-0916 Features"
diff --git a/trunk/arch/unicore32/configs/debug_defconfig b/trunk/arch/unicore32/configs/debug_defconfig
index b5fbde9f1cb2..9b9c2519a38f 100644
--- a/trunk/arch/unicore32/configs/debug_defconfig
+++ b/trunk/arch/unicore32/configs/debug_defconfig
@@ -64,7 +64,6 @@ CONFIG_I2C_BATTERY_BQ27200=n
 CONFIG_I2C_EEPROM_AT24=n
 CONFIG_LCD_BACKLIGHT=n
 
-CONFIG_PUV3_RTC=y
 CONFIG_PUV3_UMAL=y
 CONFIG_PUV3_MUSB=n
 CONFIG_PUV3_AC97=n
@@ -167,8 +166,9 @@ CONFIG_LEDS_TRIGGER_IDE_DISK=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 
 #	Real Time Clock
-CONFIG_RTC_LIB=m
-CONFIG_RTC_CLASS=m
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_PUV3=y
 
 ### File systems
 CONFIG_EXT2_FS=m
diff --git a/trunk/arch/unicore32/kernel/Makefile b/trunk/arch/unicore32/kernel/Makefile
index ec23a2fb2f50..aeb0f181568e 100644
--- a/trunk/arch/unicore32/kernel/Makefile
+++ b/trunk/arch/unicore32/kernel/Makefile
@@ -16,7 +16,6 @@ obj-$(CONFIG_UNICORE_FPU_F64)	+= fpu-ucf64.o
 obj-$(CONFIG_ARCH_PUV3)		+= clock.o irq.o time.o
 
 obj-$(CONFIG_PUV3_GPIO)		+= gpio.o
-obj-$(CONFIG_PUV3_RTC)		+= rtc.o
 obj-$(CONFIG_PUV3_PWM)		+= pwm.o
 obj-$(CONFIG_PUV3_PM)		+= pm.o sleep.o
 obj-$(CONFIG_HIBERNATION)	+= hibernate.o hibernate_asm.o
diff --git a/trunk/arch/x86/kernel/process_32.c b/trunk/arch/x86/kernel/process_32.c
index a3d0dc59067b..8d128783af47 100644
--- a/trunk/arch/x86/kernel/process_32.c
+++ b/trunk/arch/x86/kernel/process_32.c
@@ -245,6 +245,7 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
 {
 	set_user_gs(regs, 0);
 	regs->fs		= 0;
+	set_fs(USER_DS);
 	regs->ds		= __USER_DS;
 	regs->es		= __USER_DS;
 	regs->ss		= __USER_DS;
diff --git a/trunk/arch/x86/kernel/process_64.c b/trunk/arch/x86/kernel/process_64.c
index ca6f7ab8df33..6c9dd922ac0d 100644
--- a/trunk/arch/x86/kernel/process_64.c
+++ b/trunk/arch/x86/kernel/process_64.c
@@ -338,6 +338,7 @@ start_thread_common(struct pt_regs *regs, unsigned long new_ip,
 	regs->cs		= _cs;
 	regs->ss		= _ss;
 	regs->flags		= X86_EFLAGS_IF;
+	set_fs(USER_DS);
 	/*
 	 * Free the old FP and other extended state
 	 */
diff --git a/trunk/drivers/rtc/Kconfig b/trunk/drivers/rtc/Kconfig
index f822e13dc04b..ce2aabf5c550 100644
--- a/trunk/drivers/rtc/Kconfig
+++ b/trunk/drivers/rtc/Kconfig
@@ -1051,4 +1051,13 @@ config RTC_DRV_TILE
 	  Enable support for the Linux driver side of the Tilera
 	  hypervisor's real-time clock interface.
 
+config RTC_DRV_PUV3
+	tristate "PKUnity v3 RTC support"
+	depends on ARCH_PUV3
+	help
+	  This enables support for the RTC in the PKUnity-v3 SoCs.
+
+	  This drive can also be built as a module. If so, the module
+	  will be called rtc-puv3.
+
 endif # RTC_CLASS
diff --git a/trunk/drivers/rtc/Makefile b/trunk/drivers/rtc/Makefile
index 213d725f16d4..0ffefe877bfa 100644
--- a/trunk/drivers/rtc/Makefile
+++ b/trunk/drivers/rtc/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_RTC_DRV_PCF50633)	+= rtc-pcf50633.o
 obj-$(CONFIG_RTC_DRV_PL030)	+= rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)	+= rtc-pl031.o
 obj-$(CONFIG_RTC_DRV_PS3)	+= rtc-ps3.o
+obj-$(CONFIG_RTC_DRV_PUV3)	+= rtc-puv3.o
 obj-$(CONFIG_RTC_DRV_PXA)	+= rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RP5C01)	+= rtc-rp5c01.o
diff --git a/trunk/arch/unicore32/kernel/rtc.c b/trunk/drivers/rtc/rtc-puv3.c
similarity index 98%
rename from trunk/arch/unicore32/kernel/rtc.c
rename to trunk/drivers/rtc/rtc-puv3.c
index 8cad70b3302c..46f14b82f3ab 100644
--- a/trunk/arch/unicore32/kernel/rtc.c
+++ b/trunk/drivers/rtc/rtc-puv3.c
@@ -1,7 +1,5 @@
 /*
- * linux/arch/unicore32/kernel/rtc.c
- *
- * Code specific to PKUnity SoC and UniCore ISA
+ * RTC driver code specific to PKUnity SoC and UniCore ISA
  *
  *	Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
  *	Copyright (C) 2001-2010 Guan Xuetao
@@ -36,7 +34,6 @@ static int puv3_rtc_tickno  = IRQ_RTC;
 static DEFINE_SPINLOCK(puv3_rtc_pie_lock);
 
 /* IRQ Handlers */
-
 static irqreturn_t puv3_rtc_alarmirq(int irq, void *id)
 {
 	struct rtc_device *rdev = id;
@@ -89,7 +86,6 @@ static int puv3_rtc_setpie(struct device *dev, int enabled)
 }
 
 /* Time read/write */
-
 static int puv3_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
 {
 	rtc_time_to_tm(readl(RTC_RCNR), rtc_tm);
@@ -196,7 +192,6 @@ static void puv3_rtc_release(struct device *dev)
 	struct rtc_device *rtc_dev = platform_get_drvdata(pdev);
 
 	/* do not clear AIE here, it may be needed for wake */
-
 	puv3_rtc_setpie(dev, 0);
 	free_irq(puv3_rtc_alarmno, rtc_dev);
 	free_irq(puv3_rtc_tickno, rtc_dev);
@@ -218,7 +213,6 @@ static void puv3_rtc_enable(struct platform_device *pdev, int en)
 		writel(readl(RTC_RTSR) & ~RTC_RTSR_HZE, RTC_RTSR);
 	} else {
 		/* re-enable the device, and check it is ok */
-
 		if ((readl(RTC_RTSR) & RTC_RTSR_HZE) == 0) {
 			dev_info(&pdev->dev, "rtc disabled, re-enabling\n");
 			writel(readl(RTC_RTSR) | RTC_RTSR_HZE, RTC_RTSR);
@@ -251,7 +245,6 @@ static int puv3_rtc_probe(struct platform_device *pdev)
 	pr_debug("%s: probe=%p\n", __func__, pdev);
 
 	/* find the IRQs */
-
 	puv3_rtc_tickno = platform_get_irq(pdev, 1);
 	if (puv3_rtc_tickno < 0) {
 		dev_err(&pdev->dev, "no irq for rtc tick\n");
@@ -268,7 +261,6 @@ static int puv3_rtc_probe(struct platform_device *pdev)
 		 puv3_rtc_tickno, puv3_rtc_alarmno);
 
 	/* get the memory region */
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (res == NULL) {
 		dev_err(&pdev->dev, "failed to get memory region resource\n");
@@ -288,7 +280,6 @@ static int puv3_rtc_probe(struct platform_device *pdev)
 	puv3_rtc_enable(pdev, 1);
 
 	/* register RTC and exit */
-
 	rtc = rtc_device_register("pkunity", &pdev->dev, &puv3_rtcops,
 				  THIS_MODULE);
 
@@ -315,8 +306,6 @@ static int puv3_rtc_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_PM
 
-/* RTC Power management control */
-
 static int ticnt_save;
 
 static int puv3_rtc_suspend(struct platform_device *pdev, pm_message_t state)
@@ -368,4 +357,3 @@ module_exit(puv3_rtc_exit);
 MODULE_DESCRIPTION("RTC Driver for the PKUnity v3 chip");
 MODULE_AUTHOR("Hu Dongliang");
 MODULE_LICENSE("GPL v2");
-
diff --git a/trunk/fs/exec.c b/trunk/fs/exec.c
index 97e0d52d72fd..ea5f748906a8 100644
--- a/trunk/fs/exec.c
+++ b/trunk/fs/exec.c
@@ -1093,7 +1093,6 @@ int flush_old_exec(struct linux_binprm * bprm)
 
 	bprm->mm = NULL;		/* We're using it now */
 
-	set_fs(USER_DS);
 	current->flags &= ~(PF_RANDOMIZE | PF_KTHREAD);
 	flush_thread();
 	current->personality &= ~bprm->per_clear;
@@ -1358,6 +1357,10 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
 	if (retval)
 		return retval;
 
+	/* kernel module loader fixup */
+	/* so we don't try to load run modprobe in kernel space. */
+	set_fs(USER_DS);
+
 	retval = audit_bprm(bprm);
 	if (retval)
 		return retval;
diff --git a/trunk/lib/vsprintf.c b/trunk/lib/vsprintf.c
index 4365df31a1d5..c11205688fb4 100644
--- a/trunk/lib/vsprintf.c
+++ b/trunk/lib/vsprintf.c
@@ -666,8 +666,6 @@ char *ip6_compressed_string(char *p, const char *addr)
 			colonpos = i;
 		}
 	}
-	if (longest == 1)		/* don't compress a single 0 */
-		colonpos = -1;
 
 	/* emit address */
 	for (i = 0; i < range; i++) {
@@ -828,7 +826,7 @@ int kptr_restrict __read_mostly;
  *       IPv4 uses dot-separated decimal with leading 0's (010.123.045.006)
  * - '[Ii]4[hnbl]' IPv4 addresses in host, network, big or little endian order
  * - 'I6c' for IPv6 addresses printed as specified by
- *       http://tools.ietf.org/html/rfc5952
+ *       http://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-00
  * - 'U' For a 16 byte UUID/GUID, it prints the UUID/GUID in the form
  *       "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
  *       Options for %pU are: