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* Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2016-12-241088-1088/+1088
| | | | | | | | | | | | | This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds2016-12-2414-90/+177
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull cifs fixes from Steve French: "This ncludes various cifs/smb3 bug fixes, mostly for stable as well. In the next week I expect that Germano will have some reconnection fixes, and also I expect to have the remaining pieces of the snapshot enablement and SMB3 ACLs, but wanted to get this set of bug fixes in" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: cifs_get_root shouldn't use path with tree name Fix default behaviour for empty domains and add domainauto option cifs: use %16phN for formatting md5 sum cifs: Fix smbencrypt() to stop pointing a scatterlist at the stack CIFS: Fix a possible double locking of mutex during reconnect CIFS: Fix a possible memory corruption during reconnect CIFS: Fix a possible memory corruption in push locks CIFS: Fix missing nls unload in smb2_reconnect() CIFS: Decrease verbosity of ioctl call SMB3: parsing for new snapshot timestamp mount parm
| * cifs_get_root shouldn't use path with tree nameSachin Prabhu2016-12-154-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a server returns the optional flag SMB_SHARE_IS_IN_DFS in response to a tree connect, cifs_build_path_to_root() will return a pathname which includes the hostname. This causes problems with cifs_get_root() which separates each component and does a lookup for each component of the path which in this case will incorrectly include looking up the hostname component as a path component. We encountered a problem with dfs shares hosted by a Netapp. When connecting to nodes pointed to by the DFS share. The tree connect for these nodes return SMB_SHARE_IS_IN_DFS resulting failures in lookup in cifs_get_root(). RH bz: 1373153 The patch was tested against a Netapp simulator and by a user using an actual Netapp server. Signed-off-by: Sachin Prabhu <sprabhu@redhat.com> Reported-by: Pierguido Lambri <plambri@redhat.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
| * Fix default behaviour for empty domains and add domainauto optionGermano Percossi2016-12-153-5/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With commit 2b149f119 many things have been fixed/introduced. However, the default behaviour for RawNTLMSSP authentication seems to be wrong in case the domain is not passed on the command line. The main points (see below) of the patch are: - It alignes behaviour with Windows clients - It fixes backward compatibility - It fixes UPN I compared this behavour with the one from a Windows 10 command line client. When no domains are specified on the command line, I traced the packets and observed that the client does send an empty domain to the server. In the linux kernel case, the empty domain is replaced by the primary domain communicated by the SMB server. This means that, if the credentials are valid against the local server but that server is part of a domain, then the kernel module will ask to authenticate against that domain and we will get LOGON failure. I compared the packet trace from the smbclient when no domain is passed and, in that case, a default domain from the client smb.conf is taken. Apparently, connection succeeds anyway, because when the domain passed is not valid (in my case WORKGROUP), then the local one is tried and authentication succeeds. I tried with any kind of invalid domain and the result was always a connection. So, trying to interpret what to do and picking a valid domain if none is passed, seems the wrong thing to do. To this end, a new option "domainauto" has been added in case the user wants a mechanism for guessing. Without this patch, backward compatibility also is broken. With kernel 3.10, the default auth mechanism was NTLM. One of our testing servers accepted NTLM and, because no domains are passed, authentication was local. Moving to RawNTLMSSP forced us to change our command line to add a fake domain to pass to prevent this mechanism to kick in. For the same reasons, UPN is broken because the domain is specified in the username. The SMB server will work out the domain from the UPN and authenticate against the right server. Without the patch, though, given the domain is empty, it gets replaced with another domain that could be the wrong one for the authentication. Signed-off-by: Germano Percossi <germano.percossi@citrix.com> Acked-by: Pavel Shilovsky <pshilov@microsoft.com> Signed-off-by: Steve French <smfrench@gmail.com>
| * cifs: use %16phN for formatting md5 sumRasmus Villemoes2016-12-151-7/+2Star
| | | | | | | | | | | | | | | | | | | | Passing a gazillion arguments takes a lot of code: add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-253 (-253) Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com> Signed-off-by: Steve French <smfrench@gmail.com>
| * cifs: Fix smbencrypt() to stop pointing a scatterlist at the stackAndy Lutomirski2016-12-141-32/+8Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smbencrypt() points a scatterlist to the stack, which is breaks if CONFIG_VMAP_STACK=y. Fix it by switching to crypto_cipher_encrypt_one(). The new code should be considerably faster as an added benefit. This code is nearly identical to some code that Eric Biggers suggested. Cc: stable@vger.kernel.org # 4.9 only Reported-by: Eric Biggers <ebiggers3@gmail.com> Signed-off-by: Andy Lutomirski <luto@kernel.org> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
| * CIFS: Fix a possible double locking of mutex during reconnectPavel Shilovsky2016-12-054-6/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the current code it is possible to lock a mutex twice when a subsequent reconnects are triggered. On the 1st reconnect we reconnect sessions and tcons and then persistent file handles. If the 2nd reconnect happens during the reconnecting of persistent file handles then the following sequence of calls is observed: cifs_reopen_file -> SMB2_open -> small_smb2_init -> smb2_reconnect -> cifs_reopen_persistent_file_handles -> cifs_reopen_file (again!). So, we are trying to acquire the same cfile->fh_mutex twice which is wrong. Fix this by moving reconnecting of persistent handles to the delayed work (smb2_reconnect_server) and submitting this work every time we reconnect tcon in SMB2 commands handling codepath. This can also lead to corruption of a temporary file list in cifs_reopen_persistent_file_handles() because we can recursively call this function twice. Cc: Stable <stable@vger.kernel.org> # v4.9+ Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
| * CIFS: Fix a possible memory corruption during reconnectPavel Shilovsky2016-12-055-31/+85
| | | | | | | | | | | | | | | | | | | | | | | | We can not unlock/lock cifs_tcp_ses_lock while walking through ses and tcon lists because it can corrupt list iterator pointers and a tcon structure can be released if we don't hold an extra reference. Fix it by moving a reconnect process to a separate delayed work and acquiring a reference to every tcon that needs to be reconnected. Also do not send an echo request on newly established connections. CC: Stable <stable@vger.kernel.org> Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
| * CIFS: Fix a possible memory corruption in push locksPavel Shilovsky2016-12-051-1/+1
| | | | | | | | | | | | | | | | If maxBuf is not 0 but less than a size of SMB2 lock structure we can end up with a memory corruption. Cc: Stable <stable@vger.kernel.org> Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
| * CIFS: Fix missing nls unload in smb2_reconnect()Pavel Shilovsky2016-12-051-1/+1
| | | | | | | | | | | | Cc: Stable <stable@vger.kernel.org> Acked-by: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
| * CIFS: Decrease verbosity of ioctl callPavel Shilovsky2016-12-031-1/+1
| | | | | | | | | | | | | | Cc: Stable <stable@vger.kernel.org> # v4.9+ Reviewed-by: Aurelien Aptel <aaptel@suse.com> Acked-by: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
| * SMB3: parsing for new snapshot timestamp mount parmSteve French2016-12-012-3/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New mount option "snapshot=<time>" to allow mounting an earlier version of the remote volume (if such a snapshot exists on the server). Note that eventually specifying a snapshot time of 1 will allow the user to mount the oldest snapshot. A subsequent patch add the processing for that and another for actually specifying the "time warp" create context on SMB2/SMB3 open. Check to make sure SMB2 negotiated, and ensure that we use a different tcon if mount same share twice but with different snaphshot times Signed-off-by: Steve French <smfrench@gmail.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
* | Merge tag 'watchdog-for-linus-v4.10' of ↵Linus Torvalds2016-12-2418-58/+262
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull watchdog updates from Wim Van Sebroeck and Guenter Roeck: - new driver for Add Loongson1 SoC - minor cleanup and fixes in various drivers * tag 'watchdog-for-linus-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: watchdog: it87_wdt: add IT8620E ID watchdog: mpc8xxx: Remove unneeded linux/miscdevice.h include watchdog: octeon: Remove unneeded linux/miscdevice.h include watchdog: bcm2835_wdt: set WDOG_HW_RUNNING bit when appropriate watchdog: loongson1: Add Loongson1 SoC watchdog driver watchdog: cpwd: remove memory allocate failure message watchdog: da9062/61: watchdog driver intel-mid_wdt: Error code is just an integer intel-mid_wdt: make sure watchdog is not running at startup watchdog: mei_wdt: request stop on reboot to prevent false positive event watchdog: hpwdt: changed maintainer information watchdog: jz4740: Fix modular build watchdog: qcom: fix kernel panic due to external abort on non-linefetch watchdog: davinci: add support for deferred probing watchdog: meson: Remove unneeded platform MODULE_ALIAS watchdog: Standardize leading tabs and spaces in Kconfig file watchdog: max77620_wdt: fix module autoload watchdog: bcm7038_wdt: fix module autoload
| * | watchdog: it87_wdt: add IT8620E IDMaciej S. Szmigiero2016-12-162-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds IT8620E chip ID to it87_wdt driver. Such chip is often found on current Gigabyte motherboards, it is allegedly custom made for this manufacturer. Upon testing it looks like it has a 16-bit timer and cannot be reset via game port (only via CIR), so it is similar to IT87{18,20,21,28,83} chips. Tested on GA-F2A88XM-HD3P board. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: mpc8xxx: Remove unneeded linux/miscdevice.h includeCorentin Labbe2016-12-161-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | watchdog/mpc8xxx_wdt.c does not use any miscdevice so this patch remove this unnecessary inclusion. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: octeon: Remove unneeded linux/miscdevice.h includeCorentin Labbe2016-12-161-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | watchdog/octeon-wdt-main.c does not use any miscdevice so this patch remove this unnecessary inclusion. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: bcm2835_wdt: set WDOG_HW_RUNNING bit when appropriateRasmus Villemoes2016-12-161-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A bootloader may start the watchdog device before handing control to the kernel - in that case, we should tell the kernel about it so the watchdog framework can keep it alive until userspace opens /dev/watchdog0. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: loongson1: Add Loongson1 SoC watchdog driverYang Ling2016-12-163-0/+178
| | | | | | | | | | | | | | | | | | | | | | | | Add watchdog timer specific driver for Loongson1 SoC. Signed-off-by: Yang Ling <gnaygnil@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: cpwd: remove memory allocate failure messageAmit Kushwaha2016-12-161-16/+7Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replaced goto with a return statement and dropped the kfree() calls because memory allocated with devm_kzalloc() is automatically freed on driver detach Signed-off-by: Amit Kushwaha <akkushwaha9896@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: da9062/61: watchdog driverSteve Twiss2016-12-162-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The of_device_id match array is added to support "dlg,da9062-watchdog" as a valid .compatible string. A MODULE_DEVICE_TABLE() macro is added. This patch assumes the use of a DA9062 fallback compatible string for the DTS to pick up the DA9062 device driver for use with the DA9061 watchdog hardware Copyright header is updated to add DA9061 in its description and the module description macro is extended to include DA9061. Kconfig is updated to reflect support for DA9061/62. Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | intel-mid_wdt: Error code is just an integerAndy Shevchenko2016-12-161-11/+8Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Error code when printed is more readable if it's represented as plain decimal integer. Otherwise user will see something like intel_mid_wdt: Error stopping watchdog: 0xffffffed which is not quite understandable ("Should I interpret it as a bitfield?"). Make it clear to use plaint integer specifier. While here, move struct device *dev local variable definition to the top of functions. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | intel-mid_wdt: make sure watchdog is not running at startupAndy Shevchenko2016-12-161-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure that the watchdog is not running after loading and before it is started by opening /dev/watchdog. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: mei_wdt: request stop on reboot to prevent false positive eventAlexander Usyskin2016-12-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Systemd on reboot enables shutdown watchdog that leaves the watchdog device open to ensure that even if power down process get stuck the platform reboots nonetheless. The iamt_wdt is an alarm-only watchdog and can't reboot system, but the FW will generate an alarm event reboot was completed in time, as the watchdog is not automatically disabled during power cycle. So we should request stop watchdog on reboot to eliminate wrong alarm from the FW. Cc: <stable@vger.kernel.org> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: hpwdt: changed maintainer informationJimmy Vance2016-12-161-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Jimmy Vance <jimmy.vance@hpe.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: jz4740: Fix modular buildStephen Boyd2016-12-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compiling this driver as a module causes a build error because a semicolon is missing after MODULE_DEVICE_TABLE. Add it. CC [M] drivers/watchdog/jz4740_wdt.o drivers/watchdog/jz4740_wdt.c:154:1: error: expected ‘,’ or ‘;’ before ‘static’ drivers/watchdog/jz4740_wdt.c:218:11: error: ‘jz4740_wdt_probe’ undeclared here (not in a function) Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: qcom: fix kernel panic due to external abort on non-linefetchChristian Lamparter2016-12-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a off-by-one in the "watchdog: qcom: add option for standalone watchdog not in timer block" patch that causes the following panic on boot: > Unhandled fault: external abort on non-linefetch (0x1008) at 0xc8874002 > pgd = c0204000 > [c8874002] *pgd=87806811, *pte=0b017653, *ppte=0b017453 > Internal error: : 1008 [#1] SMP ARM > CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.8.6 #0 > Hardware name: Generic DT based system > PC is at 0xc02222f4 > LR is at 0x1 > pc : [<c02222f4>] lr : [<00000001>] psr: 00000113 > sp : c782fc98 ip : 00000003 fp : 00000000 > r10: 00000004 r9 : c782e000 r8 : c04ab98c > r7 : 00000001 r6 : c8874002 r5 : c782fe00 r4 : 00000002 > r3 : 00000000 r2 : c782fe00 r1 : 00100000 r0 : c8874002 > Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none > Control: 10c5387d Table: 8020406a DAC: 00000051 > Process swapper/0 (pid: 1, stack limit = 0xc782e210) > Stack: (0xc782fc98 to 0xc7830000) > [...] The WDT_STS (status) needs to be translated via wdt_addr as well. fixes: f0d9d0f4b44a ("watchdog: qcom: add option for standalone watchdog not in timer block") Cc: stable@vger.kernel.org # 4.8 Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: davinci: add support for deferred probingTero Kristo2016-12-161-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devm_clk_get can fail with EPROBE_DEFER in case the clock provider is not ready yet. Handle this case gracefully, rather than dumping out a huge warning. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: meson: Remove unneeded platform MODULE_ALIASJavier Martinez Canillas2016-12-161-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Amlogic Meson is a DT-only platform, which means the devices are registered via OF and not using the legacy platform devices support. So there's no need to have a MODULE_ALIAS("platform:meson-gxbb-wdt") since the reported uevent MODALIAS to user-space will be the OF one. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: Standardize leading tabs and spaces in Kconfig fileRobert P. J. Day2016-12-161-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | Replace small number of lines using leading spaces with proper leading tabs and spaces -- purely an aesthetic fix. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: max77620_wdt: fix module autoloadJavier Martinez Canillas2016-12-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ $ modinfo drivers/watchdog/max77620_wdt.ko | grep alias $ After this patch: modinfo drivers/watchdog/max77620_wdt.ko | grep alias alias: platform:max77620-watchdog Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | watchdog: bcm7038_wdt: fix module autoloadJavier Martinez Canillas2016-12-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/watchdog/bcm7038_wdt.ko | grep alias $ After this patch: $ modinfo drivers/watchdog/bcm7038_wdt.ko | grep alias alias: of:N*T*Cbrcm,bcm7038-wdtC* alias: of:N*T*Cbrcm,bcm7038-wdt Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | Merge tag 'ntb-4.10' of git://github.com/jonmason/ntbLinus Torvalds2016-12-247-33/+741
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NTB update from Jon Mason: - NTB bug fixes for removing an unnecessary call to ntb_peer_spad_read, and correcting a free_irq inconsistency - add Intel SKX support - change the AMD NTB maintainer, and fix some bugs present there * tag 'ntb-4.10' of git://github.com/jonmason/ntb: ntb_transport: Remove unnecessary call to ntb_peer_spad_read NTB: Fix 'request_irq()' and 'free_irq()' inconsistancy ntb: fix SKX NTB config space size register offsets NTB: correct ntb_peer_spad_read for case when callback is not supplied. MAINTAINERS: Change in maintainer for AMD NTB ntb_transport: Limit memory windows based on available, scratchpads NTB: Register and offset values fix for memory window NTB: add support for hotplug feature ntb: Adding Skylake Xeon NTB support
| * | | ntb_transport: Remove unnecessary call to ntb_peer_spad_readSteve Wahl2016-12-231-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The results were previously ignored, anyway. Signed-off-by: Steve Wahl <Steve.Wahl@dell.com> Fixes: e26a5843f7f5014ae4460030ca4de029a3ac35d3 Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | NTB: Fix 'request_irq()' and 'free_irq()' inconsistancyChristophe JAILLET2016-12-232-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'request_irq()' and 'free_irq()' should have the same 'dev_id'. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | ntb: fix SKX NTB config space size register offsetsDave Jiang2016-12-231-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The offsets for the SZ registers are wrong. Updated. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reported-by: Sandeep Mann <sandeep@purestorage.com> Tested-by: Zachary Ross <zacharyx.ross@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | NTB: correct ntb_peer_spad_read for case when callback is not supplied.Steven Wahl2016-12-231-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct ntb_peer_spad_read for case when callback is not supplied Signed-off-by: Steve Wahl <Steve.Wahl@dell.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | MAINTAINERS: Change in maintainer for AMD NTBShyam Sundar S K2016-12-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I would like to take maintainership for AMD NTB Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com> Acked-by: Xiangliang Yu <Xiangliang.Yu@amd.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | ntb_transport: Limit memory windows based on available, scratchpadsShyam Sundar S K2016-12-231-12/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the underlying NTB H/W driver advertises more memory windows than the number of scratchpads available to setup MW's, it is likely that we may end up filling the remaining memory windows with garbage. So to avoid that, lets limit the memory windows that transport driver can setup based on the available scratchpads. Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | NTB: Register and offset values fix for memory windowShyam Sundar S K2016-12-231-10/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to incorrect limit and translation register values, NTB link was going down when the memory window was setup. Made appropriate changes as per spec. Fix limit register values for BAR1, which was overlapping with the BAR23 address. Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | NTB: add support for hotplug featureXiangliang Yu2016-12-232-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AMD NTB support hotplug under B2B mode. NTB will trigger link up/down interrupt event when doing plug add/remove, this patch implements the two interrupt event to support B2B hotplug function. Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | | ntb: Adding Skylake Xeon NTB supportDave Jiang2016-12-232-5/+703
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | The Skylake Xeon NTB hardware has made some changes to the register name, offset, and the way doorbells work. Adding driver support for the new hardware. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
* | | Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2016-12-2423-117/+279
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "There's a number of fixes: - a round of fixes for CPUID-less legacy CPUs - a number of microcode loader fixes - i8042 detection robustization fixes - stack dump/unwinder fixes - x86 SoC platform driver fixes - a GCC 7 warning fix - virtualization related fixes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) Revert "x86/unwind: Detect bad stack return address" x86/paravirt: Mark unused patch_default label x86/microcode/AMD: Reload proper initrd start address x86/platform/intel/quark: Add printf attribute to imr_self_test_result() x86/platform/intel-mid: Switch MPU3050 driver to IIO x86/alternatives: Do not use sync_core() to serialize I$ x86/topology: Document cpu_llc_id x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic x86/asm: Rewrite sync_core() to use IRET-to-self x86/microcode/intel: Replace sync_core() with native_cpuid() Revert "x86/boot: Fail the boot if !M486 and CPUID is missing" x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels x86/cpu: Probe CPUID leaf 6 even when cpuid_level == 6 x86/tools: Fix gcc-7 warning in relocs.c x86/unwind: Dump stack data on warnings x86/unwind: Adjust last frame check for aligned function stacks x86/init: Fix a couple of comment typos x86/init: Remove i8042_detect() from platform ops Input: i8042 - Trust firmware a bit more when probing on X86 x86/init: Add i8042 state to the platform data ...
| * | | Revert "x86/unwind: Detect bad stack return address"Josh Poimboeuf2016-12-231-10/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert the following commit: b6959a362177 ("x86/unwind: Detect bad stack return address") ... because Andrey Konovalov reported an unwinder warning: WARNING: unrecognized kernel stack return address ffffffffa0000001 at ffff88006377fa18 in a.out:4467 The unwind was initiated from an interrupt which occurred while running in the generated code for a kprobe. The unwinder printed the warning because it expected regs->ip to point to a valid text address, but instead it pointed to the generated code. Eventually we may want come up with a way to identify generated kprobe code so the unwinder can know that it's a valid return address. Until then, just remove the warning. Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/02f296848fbf49fb72dfeea706413ecbd9d4caf6.1482418739.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | x86/paravirt: Mark unused patch_default labelPeter Zijlstra2016-12-222-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A bugfix commit: 45dbea5f55c0 ("x86/paravirt: Fix native_patch()") ... introduced a harmless warning: arch/x86/kernel/paravirt_patch_32.c: In function 'native_patch': arch/x86/kernel/paravirt_patch_32.c:71:1: error: label 'patch_default' defined but not used [-Werror=unused-label] Fix it by annotating the label as __maybe_unused. Reported-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Piotr Gregor <piotrgregor@rsyncme.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 45dbea5f55c0 ("x86/paravirt: Fix native_patch()") Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | x86/microcode/AMD: Reload proper initrd start addressBorislav Petkov2016-12-211-7/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we switch to virtual addresses and, especially after reserve_initrd()->relocate_initrd() have run, we have the updated initrd address in initrd_start. Use initrd_start then instead of the address which has been passed to us through boot params. (That still gets used when we're running the very early routines on the BSP). Reported-and-tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/20161220144012.lc4cwrg6dphqbyqu@pd.tnic Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86/platform/intel/quark: Add printf attribute to imr_self_test_result()Nicolas Iooss2016-12-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __printf() attributes help detecting issues in printf() format strings at compile time. Even though imr_selftest.c is only compiled with CONFIG_DEBUG_IMR_SELFTEST=y, GCC complains about a missing format attribute when compiling allmodconfig with -Wmissing-format-attribute. Silence this warning by adding the attribute. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Acked-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20161219132144.4108-1-nicolas.iooss_linux@m4x.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | x86/platform/intel-mid: Switch MPU3050 driver to IIOLinus Walleij2016-12-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Intel Mid goes in and creates a I2C device for the MPU3050 if the input driver for MPU-3050 is activated. As of commit: 3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope") .. there is a proper and fully featured IIO driver for this device, so deprecate the use of the incomplete input driver by augmenting the device population code to react to the presence of the IIO driver's Kconfig symbol instead. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1481722794-4348-1-git-send-email-linus.walleij@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | x86/alternatives: Do not use sync_core() to serialize I$Borislav Petkov2016-12-201-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We use sync_core() in the alternatives code to stop speculative execution of prefetched instructions because we are potentially changing them and don't want to execute stale bytes. What it does on most machines is call CPUID which is a serializing instruction. And that's expensive. However, the instruction cache is serialized when we're on the local CPU and are changing the data through the same virtual address. So then, we don't need the serializing CPUID but a simple control flow change. Last being accomplished with a CALL/RET which the noinline causes. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Andy Lutomirski <luto@kernel.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Brian Gerst <brgerst@gmail.com> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Matthew Whitehead <tedheadster@gmail.com> Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20161203150258.vwr5zzco7ctgc4pe@pd.tnic Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | x86/topology: Document cpu_llc_idBorislav Petkov2016-12-201-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It means different things on Intel and AMD so write it down so that there's no confusion. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yazen Ghannam <yazen.ghannam@amd.com> Link: http://lkml.kernel.org/r/20161117094557.jm6hwzdd52h7iwnj@pd.tnic Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panicVitaly Kuznetsov2016-12-201-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a feature in Hyper-V ('Debug-VM --InjectNonMaskableInterrupt') which injects NMI to the guest. We may want to crash the guest and do kdump on this NMI by enabling unknown_nmi_panic. To make kdump succeed we need to allow the kdump kernel to re-establish VMBus connection so it will see VMBus devices (storage, network,..). To properly unload VMBus making it possible to start over during kdump we need to do the following: - Send an 'unload' message to the hypervisor. This can be done on any CPU so we do this the crashing CPU. - Receive the 'unload finished' reply message. WS2012R2 delivers this message to the CPU which was used to establish VMBus connection during module load and this CPU may differ from the CPU sending 'unload'. Receiving a VMBus message means the following: - There is a per-CPU slot in memory for one message. This slot can in theory be accessed by any CPU. - We get an interrupt on the CPU when a message was placed into the slot. - When we read the message we need to clear the slot and signal the fact to the hypervisor. In case there are more messages to this CPU pending the hypervisor will deliver the next message. The signaling is done by writing to an MSR so this can only be done on the appropriate CPU. To avoid doing cross-CPU work on crash we have vmbus_wait_for_unload() function which checks message slots for all CPUs in a loop waiting for the 'unload finished' messages. However, there is an issue which arises when these conditions are met: - We're crashing on a CPU which is different from the one which was used to initially contact the hypervisor. - The CPU which was used for the initial contact is blocked with interrupts disabled and there is a message pending in the message slot. In this case we won't be able to read the 'unload finished' message on the crashing CPU. This is reproducible when we receive unknown NMIs on all CPUs simultaneously: the first CPU entering panic() will proceed to crash and all other CPUs will stop themselves with interrupts disabled. The suggested solution is to handle unknown NMIs for Hyper-V guests on the first CPU which gets them only. This will allow us to rely on VMBus interrupt handler being able to receive the 'unload finish' message in case it is delivered to a different CPU. The issue is not reproducible on WS2016 as Debug-VM delivers NMI to the boot CPU only, WS2012R2 and earlier Hyper-V versions are affected. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Cc: devel@linuxdriverproject.org Cc: Haiyang Zhang <haiyangz@microsoft.com> Link: http://lkml.kernel.org/r/20161202100720.28121-1-vkuznets@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-07 09:08:35 +0200