---

yaml
---
r: 145481
b: refs/heads/master
c: b8da7de
h: refs/heads/master
i:
  145479: 3be2615
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 730c586ad5228c339949b2eb4e72b80ae167abc4
+refs/heads/master: b8da7de56ca0ad34726478a50d138a29a9ff76cb

trunk/arch/x86/lguest/Makefile

@@ -1,2 +1 @@
 obj-y		:= i386_head.o boot.o
-CFLAGS_boot.o	:= $(call cc-option, -fno-stack-protector)

trunk/arch/x86/lguest/boot.c

@@ -67,7 +67,6 @@
 #include <asm/mce.h>
 #include <asm/io.h>
 #include <asm/i387.h>
-#include <asm/stackprotector.h>
 #include <asm/reboot.h>		/* for struct machine_ops */
 
 /*G:010 Welcome to the Guest!
@@ -1089,21 +1088,13 @@ __init void lguest_init(void)
 	 * lguest_init() where the rest of the fairly chaotic boot setup
 	 * occurs. */
 
-	/* The stack protector is a weird thing where gcc places a canary
-	 * value on the stack and then checks it on return.  This file is
-	 * compiled with -fno-stack-protector it, so we got this far without
-	 * problems.  The value of the canary is kept at offset 20 from the
-	 * %gs register, so we need to set that up before calling C functions
-	 * in other files. */
-	setup_stack_canary_segment(0);
-	/* We could just call load_stack_canary_segment(), but we might as
-	 * call switch_to_new_gdt() which loads the whole table and sets up
-	 * the per-cpu segment descriptor register %fs as well. */
-	switch_to_new_gdt(0);
-
 	/* As described in head_32.S, we map the first 128M of memory. */
 	max_pfn_mapped = (128*1024*1024) >> PAGE_SHIFT;
 
+	/* Load the %fs segment register (the per-cpu segment register) with
+	 * the normal data segment to get through booting. */
+	asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_DS) : "memory");
+
 	/* The Host<->Guest Switcher lives at the top of our address space, and
 	 * the Host told us how big it is when we made LGUEST_INIT hypercall:
 	 * it put the answer in lguest_data.reserve_mem  */

trunk/drivers/char/mem.c

@@ -694,9 +694,6 @@ static ssize_t read_zero(struct file * file, char __user * buf,
 		written += chunk - unwritten;
 		if (unwritten)
 			break;
-		/* Consider changing this to just 'signal_pending()' with lots of testing */
-		if (fatal_signal_pending(current))
-			return written ? written : -EINTR;
 		buf += chunk;
 		count -= chunk;
 		cond_resched();

trunk/drivers/gpu/drm/drm_irq.c

@@ -196,6 +196,7 @@ int drm_irq_install(struct drm_device *dev)
 {
 	int ret = 0;
 	unsigned long sh_flags = 0;
+	char *irqname;
 
 	if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
 		return -EINVAL;
@@ -227,8 +228,13 @@ int drm_irq_install(struct drm_device *dev)
 	if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
 		sh_flags = IRQF_SHARED;
 
+	if (dev->devname)
+		irqname = dev->devname;
+	else
+		irqname = dev->driver->name;
+
 	ret = request_irq(drm_dev_to_irq(dev), dev->driver->irq_handler,
-			  sh_flags, dev->devname, dev);
+			  sh_flags, irqname, dev);
 
 	if (ret < 0) {
 		mutex_lock(&dev->struct_mutex);

trunk/drivers/gpu/drm/i915/i915_dma.c

@@ -987,12 +987,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
 	int fb_bar = IS_I9XX(dev) ? 2 : 0;
 	int ret = 0;
 
-	dev->devname = kstrdup(DRIVER_NAME, GFP_KERNEL);
-	if (!dev->devname) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
 	dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
 		0xff000000;
 
@@ -1006,7 +1000,7 @@ static int i915_load_modeset_init(struct drm_device *dev)
 
 	ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
 	if (ret)
-		goto kfree_devname;
+		goto out;
 
 	/* Basic memrange allocator for stolen space (aka vram) */
 	drm_mm_init(&dev_priv->vram, 0, prealloc_size);
@@ -1024,7 +1018,7 @@ static int i915_load_modeset_init(struct drm_device *dev)
 
 	ret = i915_gem_init_ringbuffer(dev);
 	if (ret)
-		goto kfree_devname;
+		goto out;
 
 	/* Allow hardware batchbuffers unless told otherwise.
 	 */
@@ -1056,8 +1050,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
 
 destroy_ringbuffer:
 	i915_gem_cleanup_ringbuffer(dev);
-kfree_devname:
-	kfree(dev->devname);
 out:
 	return ret;
 }