diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-01 16:28:19 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-01 16:28:19 -0700 |
commit | 158e0d3621683ee0cdfeeba56f0e5ddd97ae984f (patch) | |
tree | cc59e84001f0a496a681242a875ecad6463aa50e /arch | |
parent | 675c354a95d5375153b8bb80a0448cab916c7991 (diff) | |
parent | 72099304eeb316c4b00df3ae83efe4375729bd78 (diff) |
Merge tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and sysfs updates from Greg KH:
"Here's the big driver core / sysfs update for 3.15-rc1.
Lots of kernfs updates to make it useful for other subsystems, and a
few other tiny driver core patches.
All have been in linux-next for a while"
* tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (42 commits)
Revert "sysfs, driver-core: remove unused {sysfs|device}_schedule_callback_owner()"
kernfs: cache atomic_write_len in kernfs_open_file
numa: fix NULL pointer access and memory leak in unregister_one_node()
Revert "driver core: synchronize device shutdown"
kernfs: fix off by one error.
kernfs: remove duplicate dir.c at the top dir
x86: align x86 arch with generic CPU modalias handling
cpu: add generic support for CPU feature based module autoloading
sysfs: create bin_attributes under the requested group
driver core: unexport static function create_syslog_header
firmware: use power efficient workqueue for unloading and aborting fw load
firmware: give a protection when map page failed
firmware: google memconsole driver fixes
firmware: fix google/gsmi duplicate efivars_sysfs_init()
drivers/base: delete non-required instances of include <linux/init.h>
kernfs: fix kernfs_node_from_dentry()
ACPI / platform: drop redundant ACPI_HANDLE check
kernfs: fix hash calculation in kernfs_rename_ns()
kernfs: add CONFIG_KERNFS
sysfs, kobject: add sysfs wrapper for kernfs_enable_ns()
...
Diffstat (limited to 'arch')
-rw-r--r-- | arch/s390/include/asm/ccwgroup.h | 1 | ||||
-rw-r--r-- | arch/s390/pci/pci_sysfs.c | 18 | ||||
-rw-r--r-- | arch/x86/Kconfig | 4 | ||||
-rw-r--r-- | arch/x86/include/asm/cpufeature.h | 7 | ||||
-rw-r--r-- | arch/x86/kernel/cpu/match.c | 42 |
5 files changed, 17 insertions, 55 deletions
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index 23723ce5ca7..6e670f88d12 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -23,6 +23,7 @@ struct ccwgroup_device { unsigned int count; struct device dev; struct ccw_device *cdev[0]; + struct work_struct ungroup_work; }; /** diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c index cf8a12ff733..ab4a9139300 100644 --- a/arch/s390/pci/pci_sysfs.c +++ b/arch/s390/pci/pci_sysfs.c @@ -48,29 +48,27 @@ static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL); -static void recover_callback(struct device *dev) +static ssize_t store_recover(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct pci_dev *pdev = to_pci_dev(dev); struct zpci_dev *zdev = get_zdev(pdev); int ret; + if (!device_remove_file_self(dev, attr)) + return count; + pci_stop_and_remove_bus_device(pdev); ret = zpci_disable_device(zdev); if (ret) - return; + return ret; ret = zpci_enable_device(zdev); if (ret) - return; + return ret; pci_rescan_bus(zdev->bus); -} - -static ssize_t store_recover(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - int rc = device_schedule_callback(dev, recover_callback); - return rc ? rc : count; + return count; } static DEVICE_ATTR(recover, S_IWUSR, NULL, store_recover); diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8453fe1342e..26237934ac8 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -127,6 +127,7 @@ config X86 select HAVE_DEBUG_STACKOVERFLOW select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64 select HAVE_CC_STACKPROTECTOR + select GENERIC_CPU_AUTOPROBE config INSTRUCTION_DECODER def_bool y @@ -195,9 +196,6 @@ config ARCH_HAS_CPU_RELAX config ARCH_HAS_CACHE_LINE_SIZE def_bool y -config ARCH_HAS_CPU_AUTOPROBE - def_bool y - config HAVE_SETUP_PER_CPU_AREA def_bool y diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 63211ef5046..e265ff95d16 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -546,6 +546,13 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit) #define static_cpu_has_bug(bit) static_cpu_has((bit)) #define boot_cpu_has_bug(bit) cpu_has_bug(&boot_cpu_data, (bit)) +#define MAX_CPU_FEATURES (NCAPINTS * 32) +#define cpu_have_feature boot_cpu_has + +#define CPU_FEATURE_TYPEFMT "x86,ven%04Xfam%04Xmod%04X" +#define CPU_FEATURE_TYPEVAL boot_cpu_data.x86_vendor, boot_cpu_data.x86, \ + boot_cpu_data.x86_model + #endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */ #endif /* _ASM_X86_CPUFEATURE_H */ diff --git a/arch/x86/kernel/cpu/match.c b/arch/x86/kernel/cpu/match.c index 36565373af8..afa9f0d487e 100644 --- a/arch/x86/kernel/cpu/match.c +++ b/arch/x86/kernel/cpu/match.c @@ -47,45 +47,3 @@ const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match) return NULL; } EXPORT_SYMBOL(x86_match_cpu); - -ssize_t arch_print_cpu_modalias(struct device *dev, - struct device_attribute *attr, - char *bufptr) -{ - int size = PAGE_SIZE; - int i, n; - char *buf = bufptr; - - n = snprintf(buf, size, "x86cpu:vendor:%04X:family:%04X:" - "model:%04X:feature:", - boot_cpu_data.x86_vendor, - boot_cpu_data.x86, - boot_cpu_data.x86_model); - size -= n; - buf += n; - size -= 1; - for (i = 0; i < NCAPINTS*32; i++) { - if (boot_cpu_has(i)) { - n = snprintf(buf, size, ",%04X", i); - if (n >= size) { - WARN(1, "x86 features overflow page\n"); - break; - } - size -= n; - buf += n; - } - } - *buf++ = '\n'; - return buf - bufptr; -} - -int arch_cpu_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - char *buf = kzalloc(PAGE_SIZE, GFP_KERNEL); - if (buf) { - arch_print_cpu_modalias(NULL, NULL, buf); - add_uevent_var(env, "MODALIAS=%s", buf); - kfree(buf); - } - return 0; -} |