- 15 Aug, 2008 11 commits
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Huang Ying authored
Ftrace depends on some processor state that we destroyed during kexec and restored by restore_processor_state(). So save_processor_state() and restore_processor_state() are moved into machine_kexec() and ftrace is restored after restore_processor_state(). Signed-off-by:
Huang Ying <ying.huang@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Huang Ying authored
Add __ftrace_enabled_save/restore, used to disable ftrace for a while. Now, this is used by kexec jump, which need a version without lock, for general situation, a locked version should be used. Signed-off-by:
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Huang Ying authored
Add device_pm_lock() and device_pm_unlock() in kernel_kexec() in sync with current hibernation implementation. Signed-off-by:
Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Huang Ying authored
Call kernel_restart_prepare() in kernel_kexec() instead of duplicating the code. Signed-off-by:
Pavel Machek <pavel@suse.cz> Acked-by:
Vivek Goyal <vgoyal@redhat.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Huang Ying authored
Kexec/Kexec-jump require code size in control page is less than PAGE_SIZE/2. This patch add link-time checking for this. ASSERT() of ld link script is used as the link-time checking mechanism. [akpm@linux-foundation.org: build fix] Signed-off-by:
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Huang Ying authored
Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control page is used for not only code on some platform. For example in kexec jump, it is used for data and stack too. [akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion] Signed-off-by:
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Huang Ying authored
Move if (kexec_image->preserve_context) { ... } into #ifdef CONFIG_KEXEC_JUMP to make code looks cleaner. Fix no longer correct comments of kernel_kexec(). Signed-off-by: -
Huang Ying authored
kernel/kexec.c: In function 'kernel_kexec': kernel/kexec.c:1506: warning: value computed is not used Signed-off-by:
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Marcin Slusarz authored
WARNING: vmlinux.o(.text+0xe684): Section mismatch in reference from the function register_nosave_region() to the function .init.text:__register_nosave_region() The function register_nosave_region() references the function __init __register_nosave_region(). This is often because register_nosave_region lacks a __init annotation or the annotation of __register_nosave_region is wrong. register_nosave_region calls __init function and is called only from __init functions Signed-off-by:
Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@suse.cz> Signed-off-by:
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Michael Kerrisk authored
With man-pages-3.07, the numa_maps documentation home is now proc(5), so the reference in Documentation/vm/page_migration needs updating. (Cliff/Lee are removing numa_maps.5 from the numactl package.) Also, the download location for the numactl package changed a while back. This patch fixes both things, as well as a typo (provided-->provides). Signed-off-by:
Michael Kerrisk <mtk.manpages@gmail.com> Cc: Cliff Wickman <cpw@sgi.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Mikulas Patocka authored
This is the minimal sequence that jams the allocator: void *p, *q, *r; p = alloc_bootmem(PAGE_SIZE); q = alloc_bootmem(64); free_bootmem(p, PAGE_SIZE); p = alloc_bootmem(PAGE_SIZE); r = alloc_bootmem(64); after this sequence (assuming that the allocator was empty or page-aligned before), pointer "q" will be equal to pointer "r". What's hapenning inside the allocator: p = alloc_bootmem(PAGE_SIZE); in allocator: last_end_off == PAGE_SIZE, bitmap contains bits 10000... q = alloc_bootmem(64); in allocator: last_end_off == PAGE_SIZE + 64, bitmap contains 11000... free_bootmem(p, PAGE_SIZE); in allocator: last_end_off == PAGE_SIZE + 64, bitmap contains 01000... p = alloc_bootmem(PAGE_SIZE); in allocator: last_end_off == PAGE_SIZE, bitmap contains 11000... r = alloc_bootmem(64); and now: it finds bit "2", as a place where to allocate (sidx) it hits the condition if (bdata->last_end_off && PFN_DOWN(bdata->last_end_off) + 1 == sidx)) start_off = ALIGN(bdata->last_end_off, align); -you can see that the condition is true, so it assigns start_off = ALIGN(bdata->last_end_off, align); (that is PAGE_SIZE) and allocates over already allocated block. With the patch it tries to continue at the end of previous allocation only if the previous allocation ended in the middle of the page. Signed-off-by:
Mikulas Patocka <mpatocka@redhat.com> Acked-by:
Johannes Weiner <hannes@saeurebad.de> Cc: David Miller <davem@davemloft.net> Signed-off-by:
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- 14 Aug, 2008 29 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (47 commits) usb: musb: pass configuration specifics via pdata usb: musb: fix hanging when rmmod gadget driver USB: Add MUSB and TUSB support USB: serial: remove CONFIG_USB_DEBUG from sierra and option drivers USB: Add vendor/product id of ZTE MF628 to option USB: quirk PLL power down mode USB: omap_udc: fix compilation with debug enabled usb: cdc-acm: drain writes on close usb: cdc-acm: stop dropping tx buffers usb: cdc-acm: bugfix release() usb gadget: issue notifications from ACM function usb gadget: remove needless struct members USB: sh: r8a66597-hcd: fix disconnect regression USB: isp1301: fix compilation USB: fix compiler warning fix usb-storage: unusual_devs entry for Nokia 5300 USB: cdc-acm.c: Fix compile warnings USB: BandRich BandLuxe C150/C250 HSPA Data Card Driver USB: ftdi_sio: add support for PHI Fisco data cable (FT232BM based, VID/PID 0403:e40b) usb: isp1760: don't be noisy about short packets. ...
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Linus Torvalds authored
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: CRED: Introduce credential access wrappers
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits) netns: Fix crash by making igmp per namespace bnx2x: Version update bnx2x: Checkpatch compliance bnx2x: Spelling mistakes bnx2x: Minor code improvements bnx2x: Driver info bnx2x: 1G LED does not turn off bnx2x: 8073 PHY changes bnx2x: Change GPIO for any port bnx2x: Pause settings bnx2x: Link order with external PHY bnx2x: No LRO without Rx checksum bnx2x: Wrong structure size bnx2x: WoL capability bnx2x: Clearing MAC addresses filters bnx2x: Delay in while loops bnx2x: PBA Table Page Alignment Workaround bnx2x: Self-test false positive bnx2x: Memory allocation bnx2x: HW attention lock ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Handle stack trace attempts before irqstacks are setup. sparc64: Implement IRQ stacks. sparc: remove include of linux/of_device.h from asm/of_device.h sparc64: Fix recursion in stack overflow detection handling. sparc/drivers: use linux/of_device.h instead of asm/of_device.h sparc64: Don't MAGIC_SYSRQ ifdef smp_fetch_global_regs and support code.
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Felipe Balbi authored
Use platform_data to pass musb configuration-specific details to musb driver. This patch will prevent that other platforms selecting HAVE_CLK and enabling musb won't break tree building. The other parts of it will come when linux-omap merge up more omap2/3 board-files. Signed-off-by:
Felipe Balbi <felipe.balbi@nokia.com> Acked-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Felipe Balbi authored
If we try to modprobe a second gadget driver before rmmoding the first one, the reference for the first gadget driver would get NULLed avoiding usb to change gadget drivers later. Cc: David Brownell <david-b@pacbell.net> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by:
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Felipe Balbi authored
This patch adds support for MUSB and TUSB controllers integrated into omap2430 and davinci. It also adds support for external tusb6010 controller. Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by:
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Greg Kroah-Hartman authored
These drivers should not be relying on CONFIG_USB_DEBUG. By doing this, it prevents users of kernels that do not enable this option from enabling debugging in these drivers, unlike all other usb-serial drivers. Cc: Matthias Urlichs <smurf@smurf.noris.de> Cc: Kevin Lloyd <klloyd@sierrawireless.com> Signed-off-by: -
Oliver Martin authored
This adds the vendor and product id (19d2:0015) of the ZTE MF628 HSDPA modem to the option driver. It still needs a mode switch command issued beforehand, this is currently handled by a userspace tool. Signed-off-by:
Oliver Martin <oliver.martin@student.tuwien.ac.at> Signed-off-by:
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Libin Yang authored
On some AMD 700 series southbridges, ISO OUT transfers (such as audio playback through speakers) on the USB OHCI controller may be corrupted when an A-Link express power saving feature is active. PLL power down mode in conjunction with link power management feature L1 being enabled is the bad combination ... this patch prevents them from being enabled when ISO transfers are pending. Signed-off-by:
Crane Cai <crane.cai@amd.com> Signed-off-by:
Libin Yang <libin.yang@amd.com> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Dmitry Baryshkov authored
Signed-off-by:
Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by:
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David Brownell authored
Add a mechanism to let the write queue drain naturally before closing the TTY, rather than always losing that data. There is a timeout, so it can't wait too long. Provide missing locking inside acm_wb_is_avail(); it matters more now. Note, this presumes an earlier patch was applied, removing a call to this routine where the lock was held. Slightly improved diagnostics on write URB completion, so we can tell when a write URB gets killed and, if so, how much data it wrote first ... and so that I/O path is normally silent (and can't much change timings). Signed-off-by:
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David Brownell authored
The "increase cdc-acm write throughput" patch left in place two now-obsolete mechanisms, either of which can make the cdc-acm driver drop TX data (nasty!). This patch removes them: - The write_ready flag ... if an URB and buffer were found, they can (and should!) always be used. - TX path acm_wb_is_used() ... used when the buffer was just allocated, so that check is pointless. Also fix a won't-yet-matter leak of a write buffer on a disconnect path. Signed-off-by:Oliver Neukum <oneukum@suse.de> Signed-off-by:
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David Brownell authored
Bugfixes to the usb_driver_release_interface() usage; (a) make sure releasing *either* interface first will release the other, instead of insisting it be the control interface; (b) remove the recently-added self-deadlock. (The "fix disconnect bug in cdc-acm" patch was incomplete and incorrect.) Plus a small "sparse" fix: rename a local variable so it doesn't shadow a function parameter. Signed-off-by: -
David Brownell authored
Update the CDC-ACM gadget code to support the peripheral-to-host notifications when the tty is opened or closed, or issues a BREAK. The serial framework code calls new generic hooks; right now only CDC-ACM uses those hooks. This resolves several REVISIT comments in the code. (Based on a patch from Felipe Balbi.) Note that this doesn't expose USB_CDC_CAP_BRK to the host, since this code still rejects USB_CDC_REQ_SEND_BREAK control requests for host-to-peripheral BREAK signaling (received via /dev/ttyGS*). Signed-off-by:
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David Brownell authored
This removes some unused members from the various USB functions. Signed-off-by:
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Yoshihiro Shimoda authored
fix the regression in commit 29fab0cd that this driver executed reconnection processing when disconnected some devices. Signed-off-by:
Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by:
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Dmitry Baryshkov authored
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Alan Stern authored
This patch (as1123b) fixes a compiler warning: do_unbind_rebind() is defined but not used if CONFIG_PM=n. Problem originally found and initial patch submitted by Alexander Beregalov <a.beregalov@gmail.com>. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
This patch (as1120) adds an unusual_devs entry for the Nokia 5300. Maybe once Nokia releases the Symbian code we'll be able to fix all the problems it has with the USB mass-storage protocol. Signed-off-by:
Cedric Godin <cedric@belbone.be> Signed-off-by:
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Takashi Iwai authored
The irq flags should be unsigned long. CC [M] drivers/usb/class/cdc-acm.o drivers/usb/class/cdc-acm.c: In function 'acm_waker': drivers/usb/class/cdc-acm.c:527: warning: comparison of distinct pointer types lacks a cast drivers/usb/class/cdc-acm.c:529: warning: comparison of distinct pointer types lacks a cast Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Leon Leong authored
This patch adds the Product ID for the BandLuxe C150/C250 3.5G data card series from BandRich Inc. After detection, the data card works fine. It was patched against kernel 2.6.27-rc1 with -mm patch Signed-off-by:
Leon Leong <upleong@bandrich.com> Signed-off-by:
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Lex Ross authored
Support for PHI Fisco USB to Serial data cable (FTDI FT232BM based). PHI Fisco cable is supplied for connecting Philips Xenium 9@9++ mobile phones. PIDs were missing. Tested successfully with PHI Fisco Data Cable (VID/PID 0403:e40b) Signed-off-by:
Lex V. Ross <lross@mail.ru> Signed-off-by:
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Sebastian Siewior authored
According to Alan Stern, short packets are quite normal under certain circumstances. This printk was triggered by usb to serial converters on every packet and some usb sticks triggered a few of those while plugging the stick. This printks are now hidden unless USB debug mode is activated. Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by:
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Enrico Scholz authored
ISP1760 requires a delay of 90ns between programming the address and reading the data. Current driver solves this by a mdelay(1) which is very heavy weighted and slow. This patch applies the workaround from the ISP1760 FAQ by using two different banks for PTD and payload data and using a common wait for them. This wait is done by an additional ISP1760 access (whose timing constraints guarantee the 90ns delay). This improves speed when reading from an USB stick from: $ time dd if=/dev/sda of=/dev/zero bs=65536 count=1638 real 1m 15.43s user 0m 0.44s sys 0m 39.46s to $ time dd if=/dev/sda of=/dev/zero bs=65536 count=1638 real 0m 18.53s user 0m 0.16s sys 0m 12.97s [bigeasy@linutronix.de: fixed comment formating, moved define into header file, obey 80 char rule] Signed-off-by:
Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by:
Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by:
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Sebastian Siewior authored
if the enqueue function returns -ESHUTDOWN or -ENOMEM then we return 0 instead of an error. This leads to a timeout and then to a dequeue request of an not enqueued urb. Signed-off-by:
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David Brownell authored
Update RX path handling in new serial gadget code to cope better with RX blockage: queue every RX packet until its contents can safely be passed up to the ldisc. Most of the RX path work is now done in the RX tasklet, instead of just the final "push to ldisc" step. This addresses some cases of data loss: - A longstanding serial gadget bug: when tty_insert_flip_string() didn't copy the entire buffer, the rest of the characters were dropped! Now that packet stays queued until the rest of its data is pushed to the ldisc. - Another longstanding issue: in the unlikely case that an RX transfer returns data and also reports a fault, that data is no longer discarded. - In the recently added RX throttling logic: it needs to stop pushing data into the TTY layer, instead of just not submitting new USB read requests. When the TTY is throttled long enough, backpressure will eventually make the OUT endpoint NAK. Also: an #ifdef is removed (no longer necessary); and start switching to a better convention for debug messages (prefix them with tty name). Signed-off-by: -
Dmitry Baryshkov authored
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Dmitry Baryshkov authored
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