Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches from Greg Kroah-Hartman:
 "Here is the big driver core merge for 3.9-rc1

  There are two major series here, both of which touch lots of drivers
  all over the kernel, and will cause you some merge conflicts:

   - add a new function called devm_ioremap_resource() to properly be
     able to check return values.

   - remove CONFIG_EXPERIMENTAL

  Other than those patches, there's not much here, some minor fixes and
  updates"

Fix up trivial conflicts

* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
  base: memory: fix soft/hard_offline_page permissions
  drivercore: Fix ordering between deferred_probe and exiting initcalls
  backlight: fix class_find_device() arguments
  TTY: mark tty_get_device call with the proper const values
  driver-core: constify data for class_find_device()
  firmware: Ignore abort check when no user-helper is used
  firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
  firmware: Make user-mode helper optional
  firmware: Refactoring for splitting user-mode helper code
  Driver core: treat unregistered bus_types as having no devices
  watchdog: Convert to devm_ioremap_resource()
  thermal: Convert to devm_ioremap_resource()
  spi: Convert to devm_ioremap_resource()
  power: Convert to devm_ioremap_resource()
  mtd: Convert to devm_ioremap_resource()
  mmc: Convert to devm_ioremap_resource()
  mfd: Convert to devm_ioremap_resource()
  media: Convert to devm_ioremap_resource()
  iommu: Convert to devm_ioremap_resource()
  drm: Convert to devm_ioremap_resource()
  ...

Documentation/CodingStyle

@@ -546,15 +546,7 @@ config AUDIT
 	  logging of avc messages output).  Does not do system-call
 	  auditing without CONFIG_AUDITSYSCALL.
 
-Features that might still be considered unstable should be defined as
-dependent on "EXPERIMENTAL":
-
-config SLUB
-	depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT
-	bool "SLUB (Unqueued Allocator)"
-	...
-
-while seriously dangerous features (such as write support for certain
+Seriously dangerous features (such as write support for certain
 filesystems) should advertise this prominently in their prompt string:
 
 config ADFS_FS_RW

Documentation/DocBook/kernel-hacking.tmpl

@@ -1184,13 +1184,6 @@ static struct block_device_operations opt_fops = {
      <filename>Documentation/kbuild/kconfig-language.txt</filename>.
     </para>
 
-    <para>
-     You may well want to make your CONFIG option only visible if
-     <symbol>CONFIG_EXPERIMENTAL</symbol> is enabled: this serves as a
-     warning to users.  There many other fancy things you can do: see
-     the various <filename>Kconfig</filename> files for ideas.
-    </para>
-
     <para>
      In your description of the option, make sure you address both the
      expert user and the user who knows nothing about your feature.  Mention

Documentation/DocBook/kgdb.tmpl

@@ -94,10 +94,8 @@
   <sect1 id="CompileKGDB">
     <title>Kernel config options for kgdb</title>
     <para>
-    To enable <symbol>CONFIG_KGDB</symbol> you should first turn on
-    "Prompt for development and/or incomplete code/drivers"
-    (CONFIG_EXPERIMENTAL) in  "General setup", then under the
-    "Kernel debugging" select "KGDB: kernel debugger".
+    To enable <symbol>CONFIG_KGDB</symbol> you should look under
+    "Kernel debugging" and select "KGDB: kernel debugger".
     </para>
     <para>
     While it is not a hard requirement that you have symbols in your

Documentation/driver-model/devres.txt

@@ -266,7 +266,8 @@ IOMAP
   devm_ioremap()
   devm_ioremap_nocache()
   devm_iounmap()
-  devm_request_and_ioremap() : checks resource, requests region, ioremaps
+  devm_ioremap_resource() : checks resource, requests memory region, ioremaps
+  devm_request_and_ioremap() : obsoleted by devm_ioremap_resource()
   pcim_iomap()
   pcim_iounmap()
   pcim_iomap_table()	: array of mapped addresses indexed by BAR
@@ -288,3 +289,7 @@ PINCTRL
 PWM
   devm_pwm_get()
   devm_pwm_put()
+
+PHY
+  devm_usb_get_phy()
+  devm_usb_put_phy()

Documentation/dynamic-debug-howto.txt

@@ -6,8 +6,16 @@ This document describes how to use the dynamic debug (dyndbg) feature.
 
 Dynamic debug is designed to allow you to dynamically enable/disable
 kernel code to obtain additional kernel information.  Currently, if
-CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() calls can
-be dynamically enabled per-callsite.
+CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() and
+print_hex_dump_debug()/print_hex_dump_bytes() calls can be dynamically
+enabled per-callsite.
+
+If CONFIG_DYNAMIC_DEBUG is not set, print_hex_dump_debug() is just
+shortcut for print_hex_dump(KERN_DEBUG).
+
+For print_hex_dump_debug()/print_hex_dump_bytes(), format string is
+its 'prefix_str' argument, if it is constant string; or "hexdump"
+in case 'prefix_str' is build dynamically.
 
 Dynamic debug has even more useful features:
 
@@ -202,6 +210,9 @@ The flags are:
   t    Include thread ID in messages not generated from interrupt context
   _    No flags are set. (Or'd with others on input)
 
+For print_hex_dump_debug() and print_hex_dump_bytes(), only 'p' flag
+have meaning, other flags ignored.
+
 For display, the flags are preceded by '='
 (mnemonic: what the flags are currently equal to).
 

Documentation/intel_txt.txt

@@ -192,7 +192,7 @@ grub.conf needs to be modified as follows:
 
 The kernel option for enabling Intel TXT support is found under the
 Security top-level menu and is called "Enable Intel(R) Trusted
-Execution Technology (TXT)".  It is marked as EXPERIMENTAL and
+Execution Technology (TXT)".  It is considered EXPERIMENTAL and
 depends on the generic x86 support (to allow maximum flexibility in
 kernel build options), since the tboot code will detect whether the
 platform actually supports Intel TXT and thus whether any of the

Documentation/laptops/thinkpad-acpi.txt

@@ -1398,7 +1398,7 @@ Sysfs notes:
 EXPERIMENTAL: UWB
 -----------------
 
-This feature is marked EXPERIMENTAL because it has not been extensively
+This feature is considered EXPERIMENTAL because it has not been extensively
 tested and validated in various ThinkPad models yet.  The feature may not
 work as expected. USE WITH CAUTION! To use this feature, you need to supply
 the experimental=1 parameter when loading the module.

Documentation/zh_CN/CodingStyle

@@ -462,13 +462,6 @@ config AUDIT
 	  logging of avc messages output).  Does not do system-call
 	  auditing without CONFIG_AUDITSYSCALL.
 
-仍然被认为不够稳定的功能应该被定义为依赖于“EXPERIMENTAL”：
-
-config SLUB
-	depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT
-	bool "SLUB (Unqueued Allocator)"
-	...
-
 而那些危险的功能（比如某些文件系统的写支持）应该在它们的提示字符串里显著的声明这
 一点：
 

arch/alpha/Kconfig

@@ -555,8 +555,7 @@ config NR_CPUS
           with working support have a maximum of 4 CPUs.
 
 config ARCH_DISCONTIGMEM_ENABLE
-	bool "Discontiguous Memory Support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Discontiguous Memory Support"
 	help
 	  Say Y to support efficient handling of discontiguous physical memory,
 	  for architectures which are either NUMA (Non-Uniform Memory Access)

arch/arm/Kconfig

@@ -1530,7 +1530,6 @@ config SMP
 
 config SMP_ON_UP
 	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	depends on SMP && !XIP_KERNEL
 	default y
 	help
@@ -1731,7 +1730,7 @@ config AEABI
 
 config OABI_COMPAT
 	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
-	depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
+	depends on AEABI && !THUMB2_KERNEL
 	default y
 	help
 	  This option preserves the old syscall interface along with the
@@ -1855,7 +1854,6 @@ config SECCOMP
 
 config CC_STACKPROTECTOR
 	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	help
 	  This option turns on the -fstack-protector GCC feature. This
 	  feature puts, at the beginning of functions, a canary value on
@@ -1872,7 +1870,7 @@ config XEN_DOM0
 
 config XEN
 	bool "Xen guest support on ARM (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && ARM && OF
+	depends on ARM && OF
 	depends on CPU_V7 && !CPU_V6
 	help
 	  Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
@@ -1941,7 +1939,7 @@ config ZBOOT_ROM
 
 choice
 	prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
-	depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
+	depends on ZBOOT_ROM && ARCH_SH7372
 	default ZBOOT_ROM_NONE
 	help
 	  Include experimental SD/MMC loading code in the ROM-able zImage.
@@ -1970,7 +1968,7 @@ endchoice
 
 config ARM_APPENDED_DTB
 	bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
-	depends on OF && !ZBOOT_ROM && EXPERIMENTAL
+	depends on OF && !ZBOOT_ROM
 	help
 	  With this option, the boot code will look for a device tree binary
 	  (DTB) appended to zImage
@@ -2088,7 +2086,7 @@ config XIP_PHYS_ADDR
 
 config KEXEC
 	bool "Kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
+	depends on (!SMP || HOTPLUG_CPU)
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
@@ -2110,7 +2108,6 @@ config ATAGS_PROC
 
 config CRASH_DUMP
 	bool "Build kdump crash kernel (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	help
 	  Generate crash dump after being started by kexec. This should
 	  be normally only set in special crash dump kernels which are
@@ -2177,7 +2174,7 @@ config CPU_FREQ_S3C
 
 config CPU_FREQ_S3C24XX
 	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
-	depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
+	depends on ARCH_S3C24XX && CPU_FREQ
 	select CPU_FREQ_S3C
 	help
 	  This enables the CPUfreq driver for the Samsung S3C24XX family
@@ -2189,7 +2186,7 @@ config CPU_FREQ_S3C24XX
 
 config CPU_FREQ_S3C24XX_PLL
 	bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
-	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
+	depends on CPU_FREQ_S3C24XX
 	help
 	  Compile in support for changing the PLL frequency from the
 	  S3C24XX series CPUfreq driver. The PLL takes time to settle
@@ -2252,7 +2249,7 @@ config FPE_NWFPE_XP
 
 config FPE_FASTFPE
 	bool "FastFPE math emulation (EXPERIMENTAL)"
-	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
+	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
 	---help---
 	  Say Y here to include the FAST floating point emulator in the kernel.
 	  This is an experimental much faster emulator which now also has full

arch/arm/Kconfig.debug

@@ -32,7 +32,7 @@ config FRAME_POINTER
 
 config ARM_UNWIND
 	bool "Enable stack unwinding support (EXPERIMENTAL)"
-	depends on AEABI && EXPERIMENTAL
+	depends on AEABI
 	default y
 	help
 	  This option enables stack unwinding support in the kernel

arch/arm/mach-omap2/gpmc.c

@@ -1134,11 +1134,9 @@ static int gpmc_probe(struct platform_device *pdev)
 	phys_base = res->start;
 	mem_size = resource_size(res);
 
-	gpmc_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!gpmc_base) {
-		dev_err(&pdev->dev, "error: request memory / ioremap\n");
-		return -EADDRNOTAVAIL;
-	}
+	gpmc_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(gpmc_base))
+		return PTR_ERR(gpmc_base);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res == NULL)

arch/arm/mach-s3c24xx/Kconfig

@@ -291,8 +291,8 @@ config MACH_JIVE
 	  Say Y here if you are using the Logitech Jive.
 
 config MACH_JIVE_SHOW_BOOTLOADER
-	bool "Allow access to bootloader partitions in MTD (EXPERIMENTAL)"
-	depends on MACH_JIVE && EXPERIMENTAL
+	bool "Allow access to bootloader partitions in MTD"
+	depends on MACH_JIVE
 
 config MACH_S3C2413
 	bool

arch/arm/mach-tegra/tegra2_emc.c

@@ -312,11 +312,9 @@ static int tegra_emc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	emc_regbase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!emc_regbase) {
-		dev_err(&pdev->dev, "failed to remap registers\n");
-		return -ENOMEM;
-	}
+	emc_regbase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(emc_regbase))
+		return PTR_ERR(emc_regbase);
 
 	pdata = pdev->dev.platform_data;
 

arch/arm/plat-omap/dmtimer.c

@@ -808,11 +808,9 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
 		return  -ENOMEM;
 	}
 
-	timer->io_base = devm_request_and_ioremap(dev, mem);
-	if (!timer->io_base) {
-		dev_err(dev, "%s: region already claimed.\n", __func__);
-		return -ENOMEM;
-	}
+	timer->io_base = devm_ioremap_resource(dev, mem);
+	if (IS_ERR(timer->io_base))
+		return PTR_ERR(timer->io_base);
 
 	if (dev->of_node) {
 		if (of_find_property(dev->of_node, "ti,timer-alwon", NULL))

arch/arm/plat-samsung/adc.c

@@ -386,11 +386,9 @@ static int s3c_adc_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	adc->regs = devm_request_and_ioremap(dev, regs);
-	if (!adc->regs) {
-		dev_err(dev, "failed to map registers\n");
-		return -ENXIO;
-	}
+	adc->regs = devm_ioremap_resource(dev, regs);
+	if (IS_ERR(adc->regs))
+		return PTR_ERR(adc->regs);
 
 	ret = regulator_enable(adc->vdd);
 	if (ret)

arch/blackfin/Kconfig

@@ -560,8 +560,7 @@ choice
 	  accurate - This option is therefore marked experimental.
 
 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
-	bool "Calculate Timings (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Calculate Timings"
 
 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
 	bool "Provide accurate Timings based on target SCLK"
@@ -1118,7 +1117,7 @@ endchoice
 
 comment "Memory Protection Unit"
 config MPU
-	bool "Enable the memory protection unit (EXPERIMENTAL)"
+	bool "Enable the memory protection unit"
 	default n
 	help
 	  Use the processor's MPU to protect applications from accessing
@@ -1440,7 +1439,6 @@ config BFIN_CPU_FREQ
 
 config CPU_VOLTAGE
 	bool "CPU Voltage scaling"
-	depends on EXPERIMENTAL
 	depends on CPU_FREQ
 	default n
 	help

arch/cris/arch-v32/drivers/Kconfig

@@ -680,7 +680,7 @@ config ETRAX_SPI_MMC_BOARD
 
 config SPI_ETRAX_SSER
 	tristate
-	depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+	depends on SPI_MASTER && ETRAX_ARCH_V32
 	select SPI_BITBANG
 	help
 	  This enables using an synchronous serial (sser) port as a
@@ -689,7 +689,7 @@ config SPI_ETRAX_SSER
 
 config SPI_ETRAX_GPIO
 	tristate
-	depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+	depends on SPI_MASTER && ETRAX_ARCH_V32
 	select SPI_BITBANG
 	help
 	  This enables using GPIO pins port as a SPI master controller

arch/ia64/Kconfig

@@ -374,8 +374,8 @@ config NR_CPUS
 	  performance hit.
 
 config HOTPLUG_CPU
-	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-	depends on SMP && EXPERIMENTAL
+	bool "Support for hot-pluggable CPUs"
+	depends on SMP
 	select HOTPLUG
 	default n
 	---help---
@@ -554,8 +554,8 @@ config IA64_HP_AML_NFW
 source "drivers/sn/Kconfig"
 
 config KEXEC
-	bool "kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
+	bool "kexec system call"
+	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot

arch/ia64/kvm/Kconfig

@@ -20,7 +20,7 @@ if VIRTUALIZATION
 config KVM
 	tristate "Kernel-based Virtual Machine (KVM) support"
 	depends on BROKEN
-	depends on HAVE_KVM && MODULES && EXPERIMENTAL
+	depends on HAVE_KVM && MODULES
 	# for device assignment:
 	depends on PCI
 	depends on BROKEN