- 14 5月, 2011 1 次提交
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由 Greg Kroah-Hartman 提交于
On some arches (x86, sh, arm, unicore, powerpc) the oops message would print out the last sysfs file accessed. This was very useful in finding a number of sysfs and driver core bugs in the 2.5 and early 2.6 development days, but it has been a number of years since this file has actually helped in debugging anything that couldn't also be trivially determined from the stack traceback. So it's time to delete the line. This is good as we need all the space we can get for oops messages at times on consoles. Acked-by: NPhil Carmody <ext-phil.2.carmody@nokia.com> Acked-by: NIngo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 13 5月, 2011 1 次提交
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由 Andrew Morton 提交于
drivers/base/memory.c: fix warning due to "memory hotplug: Speed up add/remove when blocks are larger than PAGES_PER_SECTION" drivers/base/memory.c: In function 'memory_block_change_state': drivers/base/memory.c:281: warning: unused variable 'i' less beer, more testing Cc: Anton Blanchard <anton@samba.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 12 5月, 2011 1 次提交
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由 Anton Blanchard 提交于
On ppc64 the minimum memory section for hotplug is 16MB but most recent machines have a memory block size of 256MB. This means memory_block_change_state does 16 separate calls to memory_section_action. This also means we call the notifiers 16 times and the hook in the ehea network driver is quite costly. To offline one 256MB region takes: # time echo offline > /sys/devices/system/memory/memory32/state 7.9s This patch removes the loop and calls online_pages or remove_memory once for the entire region and in doing so makes the logic simpler since we don't have to back out if things fail part way through. The same test to offline one region now takes: # time echo online > /sys/devices/system/memory/memory32/state 0.67s Over 11 times faster. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 11 5月, 2011 1 次提交
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由 Robert P. J. Day 提交于
Fix what is clearly a simple copy-and-paste error in commenting the sysfs_update_group() routine. Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 07 5月, 2011 7 次提交
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由 Wanlong Gao 提交于
Remove the struct bus_type, class, device, device_driver from the driver-model docs. With another patch add them to device.h, since they are out of date. That will keep things up to date and provide a better way to document this stuff. Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com> Acked-by: NHarry Wei <harryxiyou@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Wanlong Gao 提交于
Add the comments to the structure bus_type, device_driver, device, class to device.h for generating the driver-model kerneldoc. With another patch these all removed from the files in Documentation/driver-model/ since they are out of date. That will keep things up to date and provide a better way to document this stuff. Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com> Acked-by: NHarry Wei <harryxiyou@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Harry Wei 提交于
The patch includes the translation Documentation/email-clients.txt. If anyone has other problems, please let me know. Signed-off-by: NHarry Wei <harryxiyou@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Robert P. J. Day 提交于
If cdev_add() fails, there is no justification for subsequently calling kobject_put(). Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
In case CONFIG_UEVENT_HELPER_PATH is not set to "", which it should be on every system, the kernel forks processes during shutdown, which try to access the rootfs, even when the binary does not exist. It causes exceptions and long delays in the disk driver, which gets read requests at the time it tries to shut down the disk. This patch disables all kernel-forked processes during reboot to allow a clean poweroff. Cc: Tejun Heo <htejun@gmail.com> Tested-By: NAnton Guda <atu@dmeti.dp.ua> Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Randy Dunlap 提交于
efivars_exit() should check for efi_enabled and not undo allocations when efi is not enabled. Otherwise there is an Oops during module unload: calling efivars_init+0x0/0x1000 [efivars] @ 2810 EFI Variables Facility v0.08 2004-May-17 initcall efivars_init+0x0/0x1000 [efivars] returned 0 after 5120 usecs Oops: 0000 [#1] SMP DEBUG_PAGEALLOC last sysfs file: /sys/module/firmware_class/initstate CPU 1 Modules linked in: efivars(-) af_packet tun nfsd lockd nfs_acl auth_rpcgss sunrpc ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables x_tables ipv6 cpufreq_ondemand acpi_cpufreq freq_table mperf binfmt_misc dm_mirror dm_region_hash dm_log dm_multipath scsi_dh dm_mod snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep mousedev snd_seq joydev snd_seq_device mac_hid evdev snd_pcm usbkbd usbmouse usbhid snd_timer hid tg3 snd sr_mod pcspkr rtc_cmos soundcore cdrom iTCO_wdt processor sg dcdbas i2c_i801 rtc_core iTCO_vendor_support intel_agp snd_page_alloc thermal_sys rtc_lib intel_gtt 8250_pnp button hwmon unix ide_pci_generic ide_core ata_generic pata_acpi ata_piix sd_mod crc_t10dif ext3 jbd mbcache uhci_hcd ohci_hcd ssb mmc_core pcmcia pcmcia_core firmware_class ehci_hcd usbcore [last unloaded: dell_rbu] Pid: 2812, comm: rmmod Not tainted 2.6.39-rc6 #1 Dell Inc. OptiPlex 745 /0TY565 RIP: 0010:[<ffffffffa06a17f6>] [<ffffffffa06a17f6>] unregister_efivars+0x28/0x12c [efivars] RSP: 0018:ffff88005eedde98 EFLAGS: 00010283 RAX: ffffffffa06a23fc RBX: ffffffffa06a44c0 RCX: ffff88007c227a50 RDX: 0000000000000000 RSI: 00000055ac13db78 RDI: ffffffffa06a44c0 RBP: ffff88005eeddec8 R08: 0000000000000000 R09: ffff88005eeddd78 R10: ffffffffa06a4220 R11: ffff88005eeddd78 R12: fffffffffffff7d0 R13: 00007fff5a3aaec0 R14: 0000000000000000 R15: ffffffffa06a4508 FS: 00007fa8dcc4a6f0(0000) GS:ffff88007c200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000005d148000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process rmmod (pid: 2812, threadinfo ffff88005eedc000, task ffff88006754b000) Stack: ffff88005eeddec8 ffffffffa06a4220 0000000000000000 00007fff5a3aaec0 0000000000000000 0000000000000001 ffff88005eedded8 ffffffffa06a2418 ffff88005eeddf78 ffffffff810d3598 ffffffffa06a4220 0000000000000880 Call Trace: [<ffffffffa06a2418>] efivars_exit+0x1c/0xc04 [efivars] [<ffffffff810d3598>] sys_delete_module+0x2d6/0x368 [<ffffffff812d1db9>] ? lockdep_sys_exit_thunk+0x35/0x67 [<ffffffff810fcba1>] ? audit_syscall_entry+0x172/0x1a5 [<ffffffff81575082>] system_call_fastpath+0x16/0x1b Code: 5c c9 c3 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 08 0f 1f 44 00 00 4c 8b 67 48 48 89 fb 4c 8d 7f 48 49 81 ec 30 08 00 00 <4d> 8b ac 24 30 08 00 00 49 81 ed 30 08 00 00 eb 59 48 89 df 48 RIP [<ffffffffa06a17f6>] unregister_efivars+0x28/0x12c [efivars] RSP <ffff88005eedde98> CR2: 0000000000000000 ---[ end trace aa99b99090f70baa ]--- Matt apparently removed such a check in 2004 (with no reason given): * 17 May 2004 - Matt Domsch <Matt_Domsch@dell.com> * remove check for efi_enabled in exit but there have been several changes since then. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NMike Waychison <mikew@google.com> Tested-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: Matt Domsch <Matt_Domsch@dell.com> Cc: <matthew.e.tolentino@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jan Kara 提交于
Allow setting of maximal number of raw devices as a module parameter. This requires changing of static array into a vmalloced one (the array is going to be too large for kmalloc). Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 30 4月, 2011 6 次提交
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由 Mike Waychison 提交于
In order to keep Google's firmware drivers organized amongst themselves, all Google firmware drivers are gated on CONFIG_GOOGLE_FIRMWARE=y, which defaults to 'n' in the kernel build. Signed-off-by: NMike Waychison <mikew@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Mike Waychison 提交于
This patch introduces the 'memconsole' driver. Our firmware gives us access to an in-memory log of the firmware's output. This gives us visibility in a data-center of headless machines as to what the firmware is doing. The memory console is found by the driver by finding a header block in the EBDA. The buffer is then copied out, and is exported to userland in the file /sys/firmware/log. Signed-off-by: NSan Mehat <san@google.com> Signed-off-by: NMike Waychison <mikew@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Mike Waychison 提交于
The "gsmi" driver bridges userland with firmware specific routines for accessing hardware. Currently, this driver only supports NVRAM and eventlog information. Deprecated functions have been removed from the driver, though their op-codes are left in place so that they are not re-used. This driver works by trampolining into the firmware via the smi_command outlined in the FADT table. Three protocols are used due to various limitations over time, but all are included herein. This driver should only ever load on Google boards, identified by either a "Google, Inc." board vendor string in DMI, or "GOOGLE" in the OEM strings of the FADT ACPI table. This logic happens in gsmi_system_valid(). Signed-off-by: NDuncan Laurie <dlaurie@google.com> Signed-off-by: NAaron Durbin <adurbin@google.com> Signed-off-by: NMike Waychison <mikew@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Mike Waychison 提交于
Make the comments a bit clearer for get_bios_ebda so that it actually tells us what it is returning. Signed-off-by: NMike Waychison <mikew@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Mike Waychison 提交于
Add a wrapper routine that tells us the length of the EBDA if it is present. This guy also ensures that the returned length doesn't let the EBDA run past the 640KiB mark. Signed-off-by: NMike Waychison <mikew@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Randy Dunlap 提交于
st_drv uses skb*() interfaces, so it should depend on NET. It also uses GPIO interfaces, so it should depend on GPIOLIB. st_kim.c uses syss_*() calls, so it should #include <linux/sysfs.h>. Fixes these observed build errors: ERROR: "skb_queue_purge" [drivers/misc/ti-st/st_drv.ko] undefined! ERROR: "skb_pull" [drivers/misc/ti-st/st_drv.ko] undefined! ERROR: "skb_queue_tail" [drivers/misc/ti-st/st_drv.ko] undefined! ERROR: "__alloc_skb" [drivers/misc/ti-st/st_drv.ko] undefined! ERROR: "kfree_skb" [drivers/misc/ti-st/st_drv.ko] undefined! ERROR: "skb_dequeue" [drivers/misc/ti-st/st_drv.ko] undefined! ERROR: "skb_put" [drivers/misc/ti-st/st_drv.ko] undefined! Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: Pavan Savoy <pavan_savoy@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 26 4月, 2011 4 次提交
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由 Jonathan Cameron 提交于
No functional changes. Signed-off-by: NJonathan Cameron <jic23@cam.ac.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jonathan Cameron 提交于
No functional changes requires that we eat errors from strtobool. If people want to not do this, then it should be fixed at a later date. V2: Simplification suggested by Rusty Russell removes the need for additional variable ret. Signed-off-by: NJonathan Cameron <jic23@cam.ac.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jonathan Cameron 提交于
This is a rename of the usr_strtobool proposal, which was a renamed, relocated and fixed version of previous kstrtobool RFC Signed-off-by: NJonathan Cameron <jic23@cam.ac.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Wanlong Gao 提交于
Fix the line longer than 80 of memory_uevent function . Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 23 4月, 2011 9 次提交
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由 Uwe Kleine-König 提交于
Before commit b4028437 (Driver core: move dev_get/set_drvdata to drivers/base/dd.c) calling dev_set_drvdata with dev=NULL was an unchecked error. After some discussion about what to return in this case removing the check (and so producing a null pointer exception) seems fine. Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Uwe Kleine-König 提交于
Reviewed-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Uwe Kleine-König 提交于
This makes the res = NULL case more consistant to the res != NULL case as now both overwrite pdev->resource. Reviewed-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Uwe Kleine-König 提交于
Reviewed-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Uwe Kleine-König 提交于
This makes the data = NULL case more consistent to the data != NULL case. The functional change is that now platform_device_add_data(somepdev, NULL, somesize) sets pdev->dev.platform_data to NULL instead of not touching it. Reviewed-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Karthigan Srinivasan 提交于
Fixed brace coding style issue. Signed-off-by: NKarthigan Srinivasan <karthigan.srinivasan@hp.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Sebastian Ott 提交于
When a device is registered to a bus it will be a) added to the list of devices of the bus and b) bind to a driver (if one matches). As a result of a driver being registered at this bus between a) and b) this device could already be bound to a driver. This leads to a warning and incorrect refcounting. To fix this add a check to device_attach to identify an already bound device. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Pavan Savoy 提交于
rfkill is no longer used by Texas Instruments shared transport driver to communicate with user-space. This patch removes the dependency of rfkill to be enabled to build shared transport driver in the Kconfig. Signed-off-by: NPavan Savoy <pavan_savoy@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Pavan Savoy 提交于
When certain technologies shutdown their interface without waiting for the acknowledgement from the chip. The receive_buf from the TTY would be invoked a while after the relevant technology is unregistered. This patch introduces a new flag "is_registered" which maintains the state of protocols BT, FM or GPS and thereby removes the need to clear the protocol data from ST when protocols gets unregistered. This fixes corner cases when HCI RESET is sent down from bluetooth stack and the receive_buf is called from tty after 250ms before which bluetooth would have unregistered from the system. OR - when FM application decides to close down the device without sending a power-off FM command resulting in some RDS data or interrupt data coming in after the driver is unregistered. Signed-off-by: NPavan Savoy <pavan_savoy@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 20 4月, 2011 10 次提交
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由 Andrew Morton 提交于
make `len' size_t, avoid multiple-assignments. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Lennart Poettering <lennart@poettering.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
printk: /dev/kmsg - properly support writev() to avoid interleaved printk lines We should avoid calling printk() in a loop, when we pass a single string to /dev/kmsg with writev(). Cc: Lennart Poettering <lennart@poettering.net> Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jie Zhou 提交于
The uioinfo should be cleaned up when uninstall, otherwise re-install failure of uio_pdrv_genirq.ko will happen. Signed-off-by: NJie Zhou <b30303@freescale.com> Signed-off-by: NAisheng Dong <b29396@freescale.com> Signed-off-by: NHans J. Koch <hjk@hansjkoch.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Hillf Danton 提交于
The number of uio devices that could be used should be less than UIO_MAX_DEVICES by design, and this work guards any cases in which id more than UIO_MAX_DEVICES is utilized. Signed-off-by: NHillf Danton <dhillf@gmail.com> Signed-off-by: NHans J. Koch <hjk@hansjkoch.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Hillf Danton 提交于
When finding mm index for vma it looks more flexible that the mm could be sparse, and both the size of mm and the pgoff of vma could give correct selection. Signed-off-by: NHillf Danton <dhillf@gmail.com> Signed-off-by: NHans J. Koch <hjk@hansjkoch.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Daniel Trautmann 提交于
This patch adds support for Hilscher / IBHsoftec netPLC cards to uio_netx userspace IO driver. Changes from v1 -> v2: Fixed whitespace errors reported by scripts/checkpatch.pl which were caused by email client. Signed-off-by: NDaniel Trautmann <dtrautmann@ibhsoftec-sps.de> Signed-off-by: N"Hans J. Koch" <hjk@hansjkoch.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tsugikazu Shibata 提交于
Signed-off-by: NTsugikazu Shibata <tshibata@ab.jp.nec.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Ludwig Nussel 提交于
A kernel booted with no_file_caps allows to install fscaps on a binary but doesn't actually honor the fscaps when running the binary. Userspace currently has no sane way to determine whether installing fscaps actually has any effect. Since parsing /proc/cmdline is fragile this patch exposes the current setting (1 or 0) via /sys/kernel/fscaps Signed-off-by: NLudwig Nussel <ludwig.nussel@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Stephen Hemminger 提交于
The device_type structure does not contain data that changes during usage and should be const. This allows devices to declare the struct const. I have patches to change all the subsystems, but need the infra structure change first. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Mike Waychison 提交于
Fix the grammar in describing the position attribute of DMI entries in the dmi-sysfs module. While here, make a couple other small clarifying fixups to the docs. Reported-by: <Valdis.Kletnieks@vt.edu> Signed-off-by: NMike Waychison <mikew@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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