- 29 6月, 2012 21 次提交
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由 Daniel Kurtz 提交于
Atmel mxt devices can report one finger for each T9 reportid. Therefore, this range can be used to report the max number of MT-B slots to userspace instead of assuming a fixed 10. Note that mxt_initialized() must complete early, since the input_dev properties now depend on values in the object table. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
This small refactor is in preparation for checking more report types in the mxt_interrupt message processing loop. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Streamline interrupt processing by caching the T9 reportid range when first reading the object table. In the process, refactor reading the object descriptor table. First, since the object_table entries are now exactly the same layout in device memory and in the driver, allocate an appropriately sized array and fetch the entire table directly into it in a single i2c transaction. Since a 6 byte table object requires 10 bytes to read, doing this dramatically reduces overhead. Note: The cached T9 reportid's are initialized to 0, which is an invalid reportid. Thus, the checks in the interrupt handler will always fail for devices that do not support the T9 object. Therefore, after doing a firmware update, the old object table is destroyed and all cached object values are reset to 0, before reading the new object table, in case the new firmware does not have the old objects. This patch tested on an MXT224E. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
The Object Table is freed in three cases: 1) When the driver is being removed. 2) In the error path of mxt_initialize(). 3) Just after a firmware update, when a new object table is about to be read. For cases 2 & 3, the driver is not immediately unloaded, so this patch refactors these cases to use a common cleanup function. It also refactors the mxt_initialize error paths to ensure that this cleanup happens. Note: mxt_update_fw_store() does not handle errors during mxt_initialize(). A proposed fix for this is in a subsequent patchset. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Update the debug message: * print inidividual status bits * print the pressure value * use '%u' for unsigned quantities Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Instead of carrying around per-finger state in the driver instance, just report each finger as it arrives to the input layer, and let the input layer (evdev) hold the event state (which it does anyway). Note: this driver does not really do MT-B properly. Each input report (a group of input events followed by a SYN_REPORT) only contains data for a single contact. When multiple fingers are present on a device, each is properly reported in its own MT_SLOT. However, there is only ever one MT_SLOT per SYN_REPORT. This is fixed in a subsequent patch. This patch was tested with an mXT224E. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Make firmware and hardware version strings available to userspace. This is useful, for example, to allow a userspace program to implement a firwmare update policy. Change-Id: I1eddb4bbf5f3f9ae6947a8528598973ddead18cf Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Print unsigned values as '%u'. Also, parse and print the firmware version in its canonical format, as suggested by Nick Dyer. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Reading the whole info block in one i2c transaction speeds up driver probe significantly, especially on slower i2c busses. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Write each object using a single bulk i2c write transfer. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
The i2c bus requires 4 bytes to do a 1-byte write (1 byte i2c address + 2 byte offset + 1 byte data). By taking a length with writes, the driver can amortize transaction overhead by performing larger transactions where appropriate. This patch just sets up the new API. Later patches refactor writes to take advantage of the larger transactions. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
The i2c layer can report a variety of errors, including -ENXIO for an i2c NAK. Instead of treating them all as -EIO, pass the actual i2c layer error up to the caller. However, still report as -EIO the unlikely case that a transaction was partially completed, and no error message was returned from i2c_*(). Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
For objects with multiple instances, dump them all, prepending each with its "Instance #". [rydberg@euromail.se: break out mxt_show_instance()] Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Conserve limited (PAGE_SIZE) sysfs output buffer space by only showing readable objects and not printing the object's index, which is not useful to userspace. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Read each object in a single i2c transaction instead of byte-by-byte Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Using scnprintf() is a cleaner way to ensure that we don't overwrite the PAGE_SIZE sysfs output buffer. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
T5 is the message processor object. Reading it will only have two outcomes, neither of which is particularly useful: 1) the message count decrements, and a valid message will be lost 2) an invalid message will be read (reportid == 0xff) Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
If sysfs entry creation fails, the driver is still usable, so don't just abort probe. Just warn and continue. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
Hopefully this new code path will never be used, but better safe than sorry... Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
The atmel_mxt_ts driver can support multiple devices simultaneously. Use the i2c_client name instead of the driver name when requesting an interrupt to make the different interrupts distinguishable in /proc/interrupts and top. Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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由 Daniel Kurtz 提交于
This allows userspace to more easily distinguish which bus a particular atmel_mxt_ts device is attached to. The resulting phys will be something like: i2c-1-0067/input0 Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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- 04 6月, 2012 1 次提交
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由 Sachin Kamat 提交于
Fixes the following sparse warning: drivers/input/input-mt.c:138:40: warning: Using plain integer as NULL pointer Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
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- 03 6月, 2012 13 次提交
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm由 Linus Torvalds 提交于
Pull device-mapper updates from Alasdair G Kergon: "Improve multipath's retrying mechanism in some defined circumstances and provide a simple reserve/release mechanism for userspace tools to access thin provisioning metadata while the pool is in use." * tag 'dm-3.5-changes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm thin: provide userspace access to pool metadata dm thin: use slab mempools dm mpath: allow ioctls to trigger pg init dm mpath: delay retry of bypassed pg dm mpath: reduce size of struct multipath
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由 Joe Thornber 提交于
This patch implements two new messages that can be sent to the thin pool target allowing it to take a snapshot of the _metadata_. This, read-only snapshot can be accessed by userland, concurrently with the live target. Only one metadata snapshot can be held at a time. The pool's status line will give the block location for the current msnap. Since version 0.1.5 of the userland thin provisioning tools, the thin_dump program displays the msnap as follows: thin_dump -m <msnap root> <metadata dev> Available here: https://github.com/jthornber/thin-provisioning-tools Now that userland can access the metadata we can do various things that have traditionally been kernel side tasks: i) Incremental backups. By using metadata snapshots we can work out what blocks have changed over time. Combined with data snapshots we can ensure the data doesn't change while we back it up. A short proof of concept script can be found here: https://github.com/jthornber/thinp-test-suite/blob/master/incremental_backup_example.rb ii) Migration of thin devices from one pool to another. iii) Merging snapshots back into an external origin. iv) Asyncronous replication. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Snitzer 提交于
Use dedicated caches prefixed with a "dm_" name rather than relying on kmalloc mempools backed by generic slab caches so the memory usage of thin provisioning (and any leaks) can be accounted for independently. Signed-off-by: NMike Snitzer <snitzer@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mikulas Patocka 提交于
After the failure of a group of paths, any alternative paths that need initialising do not become available until further I/O is sent to the device. Until this has happened, ioctls return -EAGAIN. With this patch, new paths are made available in response to an ioctl too. The processing of the ioctl gets delayed until this has happened. Instead of returning an error, we submit a work item to kmultipathd (that will potentially activate the new path) and retry in ten milliseconds. Note that the patch doesn't retry an ioctl if the ioctl itself fails due to a path failure. Such retries should be handled intelligently by the code that generated the ioctl in the first place, noting that some SCSI commands should not be retried because they are not idempotent (XOR write commands). For commands that could be retried, there is a danger that if the device rejected the SCSI command, the path could be errorneously marked as failed, and the request would be retried on another path which might fail too. It can be determined if the failure happens on the device or on the SCSI controller, but there is no guarantee that all SCSI drivers set these flags correctly. Signed-off-by: NMikulas Patocka <mpatocka@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Christie 提交于
If I/O needs retrying and only bypassed priority groups are available, set the pg_init_delay_retry flag to wait before retrying. If, for example, the reason for the bypass is that the controller is getting reset or there is a firmware upgrade happening, retrying right away would cause a flood of log messages and retries for what could be a few seconds or even several minutes. Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> Acked-by: NMike Snitzer <snitzer@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Snitzer 提交于
Move multipath structure's 'lock' and 'queue_size' members to eliminate two 4-byte holes. Also use a bit within a single unsigned int for each existing flag (saves 8-bytes). This allows future flags to be added without each consuming an unsigned int. Signed-off-by: NMike Snitzer <snitzer@redhat.com> Acked-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 Linus Torvalds 提交于
Pull networking updates from David Miller: 1) Make syn floods consume significantly less resources by a) Not pre-COW'ing routing metrics for SYN/ACKs b) Mirroring the device queue mapping of the SYN for the SYN/ACK reply. Both from Eric Dumazet. 2) Fix calculation errors in Byte Queue Limiting, from Hiroaki SHIMODA. 3) Validate the length requested when building a paged SKB for a socket, so we don't overrun the page vector accidently. From Jason Wang. 4) When netlabel is disabled, we abort all IP option processing when we see a CIPSO option. This isn't the right thing to do, we should simply skip over it and continue processing the remaining options (if any). Fix from Paul Moore. 5) SRIOV fixes for the mellanox driver from Jack orgenstein and Marcel Apfelbaum. 6) 8139cp enables the receiver before the ring address is properly programmed, which potentially lets the device crap over random memory. Fix from Jason Wang. 7) e1000/e1000e fixes for i217 RST handling, and an improper buffer address reference in jumbo RX frame processing from Bruce Allan and Sebastian Andrzej Siewior, respectively. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: fec_mpc52xx: fix timestamp filtering mcs7830: Implement link state detection e1000e: fix Rapid Start Technology support for i217 e1000: look into the page instead of skb->data for e1000_tbi_adjust_stats() r8169: call netif_napi_del at errpaths and at driver unload tcp: reflect SYN queue_mapping into SYNACK packets tcp: do not create inetpeer on SYNACK message 8139cp/8139too: terminate the eeprom access with the right opmode 8139cp: set ring address before enabling receiver cipso: handle CIPSO options correctly when NetLabel is disabled net: sock: validate data_len before allocating skb in sock_alloc_send_pskb() bql: Avoid possible inconsistent calculation. bql: Avoid unneeded limit decrement. bql: Fix POSDIFF() to integer overflow aware. net/mlx4_core: Fix obscure mlx4_cmd_box parameter in QUERY_DEV_CAP net/mlx4_core: Check port out-of-range before using in mlx4_slave_cap net/mlx4_core: Fixes for VF / Guest startup flow net/mlx4_en: Fix improper use of "port" parameter in mlx4_en_event net/mlx4_core: Fix number of EQs used in ICM initialisation net/mlx4_core: Fix the slave_id out-of-range test in mlx4_eq_int
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull straggler x86 fixes from Peter Anvin: "Three groups of patches: - EFI boot stub documentation and the ability to print error messages; - Removal for PTRACE_ARCH_PRCTL for x32 (obsolete interface which should never have been ported, and the port is broken and potentially dangerous.) - ftrace stack corruption fixes. I'm not super-happy about the technical implementation, but it is probably the least invasive in the short term. In the future I would like a single method for nesting the debug stack, however." * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, x32, ptrace: Remove PTRACE_ARCH_PRCTL for x32 x86, efi: Add EFI boot stub documentation x86, efi; Add EFI boot stub console support x86, efi: Only close open files in error path ftrace/x86: Do not change stacks in DEBUG when calling lockdep x86: Allow nesting of the debug stack IDT setting x86: Reset the debug_stack update counter ftrace: Use breakpoint method to update ftrace caller ftrace: Synchronize variable setting with breakpoints
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由 Linus Torvalds 提交于
This reverts the tty layer change to use per-tty locking, because it's not correct yet, and fixing it will require some more deep surgery. The main revert is d29f3ef3 ("tty_lock: Localise the lock"), but there are several smaller commits that built upon it, they also get reverted here. The list of reverted commits is: fde86d31 - tty: add lockdep annotations 8f6576ad - tty: fix ldisc lock inversion trace d3ca8b64 - pty: Fix lock inversion b1d679af - tty: drop the pty lock during hangup abcefe5f - tty/amiserial: Add missing argument for tty_unlock() fd11b42e - cris: fix missing tty arg in wait_event_interruptible_tty call d29f3ef3 - tty_lock: Localise the lock The revert had a trivial conflict in the 68360serial.c staging driver that got removed in the meantime. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Stephan Gatzka 提交于
skb_defer_rx_timestamp was called with a freshly allocated skb but must be called with rskb instead. Signed-off-by: NStephan Gatzka <stephan@gatzka.org> Cc: stable <stable@vger.kernel.org> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ondrej Zary 提交于
Add .status callback that detects link state changes. Tested with MCS7832CV-AA chip (9710:7830, identified as rev.C by the driver). Fixes https://bugzilla.kernel.org/show_bug.cgi?id=28532Signed-off-by: NOndrej Zary <linux@rainbow-software.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/{vfs,signal}由 Linus Torvalds 提交于
Pull vfs fix and a fix from the signal changes for frv from Al Viro. The __kernel_nlink_t for powerpc got scrogged because 64-bit powerpc actually depended on the default "unsigned long", while 32-bit powerpc had an explicit override to "unsigned short". Al didn't notice, and made both of them be the unsigned short. The frv signal fix is fallout from simplifying the do_notify_resume() code, and leaving an extra parenthesis. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: powerpc: Fix size of st_nlink on 64bit * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: frv: Remove bogus closing parenthesis
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- 02 6月, 2012 5 次提交
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由 Anton Blanchard 提交于
commit e57f93cc (powerpc: get rid of nlink_t uses, switch to explicitly-sized type) changed the size of st_nlink on ppc64 from a long to a short, resulting in boot failures. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Geert Uytterhoeven 提交于
Introduced by commit 6fd84c08 ("TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set") Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Bruce Allan 提交于
The definition of I217_PROXY_CTRL must use the BM_PHY_REG() macro instead of the PHY_REG() macro for PHY page 800 register 70 since it is for a PHY register greater than the maximum allowed by the latter macro, and fix a typo setting the I217_MEMPWR register in e1000_suspend_workarounds_ich8lan. Also for clarity, rename a few defines as bit definitions instead of masks. Signed-off-by: NBruce Allan <bruce.w.allan@intel.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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This is another fixup where the data is not transfered into buffer addressed by skb->data but into a page. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Linus Torvalds 提交于
Merge fixups for the mac NLS tables from Andrew. * emailed from Andrew Morton, and one cleanup by me: nls: fix (and rename) mac NLS table files and config options fs/nls/Makefile: remove bogus CONFIG_ assignments
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