summaryrefslogtreecommitdiff
path: root/drivers/char
AgeCommit message (Collapse)Author
2011-11-02virtio: console: wait for first console port for early console outputChristian Borntraeger
On s390 I have seen some random "Warning: unable to open an initial console" boot failure. Turns out that tty_open fails, because the hvc_alloc was not yet done. In former times this could not happen, since the probe function automatically called hvc_alloc. With newer versions (multiport) some host<->guest interaction is required before hvc_alloc is called. This might be too late, especially if an initramfs is involved. Lets use a completion if we have multiport and an early console. [Amit: * Use NULL instead of 0 for pointer comparison * Rename 'port_added' to 'early_console_added' * Re-format, re-word commit message * Rebase patch on top of current queue] Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Acked-by: Chrstian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: add port stats for bytes received, sent and discardedAmit Shah
This commit adds port-specific stats for the number of bytes received, sent and discarded. They're exposed via the debugfs interface. This data can be used to check for data loss bugs (or disprove such claims). It can also be used for accounting, if there's such a need. The stats remain valid throughout the lifetime of the port. Unplugging a port will reset the stats. The numbers are not reset across port opens/closes. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: make discard_port_data() use get_inbuf()Amit Shah
discard_port_data() used virtqueue_get_buf() directly instead of using get_inbuf(). Fix this, so that we get accounting for all received bytes. This also simplifies the code a lot. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: rename variableAmit Shah
'ret' is a misnomer in discard_port_data() since we don't return the value. Rename it to 'err'. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: make get_inbuf() return port->inbuf if presentAmit Shah
Instead of pulling in a buffer from the vq each time it's called, get_inbuf() now checks if the current active buffer, in port->inbuf is valid. If it is, just returns a pointer to it. This ends up simplifying a lot of code calling get_inbuf() since the check for port->inbuf being valid was done by all the callers. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: Fix return type for get_inbuf()Amit Shah
get_inbuf() returns void *. There's no reason to return void pointers instead of the correct struct port_buffer *. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: Use wait_event_freezable instead of _interruptibleAmit Shah
Get ready to support suspend/resume by using the freezable calls so that blocking read/write syscalls are handled properly across suspend/resume. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: Ignore port name update request if name already setAmit Shah
We don't allow port name changes dynamically for a port. So any requests by the host to change the name are ignored. Before this patch, if the hypervisor sent a port name while we had one set already, we would leak memory equivalent to the size of the old name. This scenario wasn't expected so far, but with the suspend-resume support, we'll send the VIRTIO_CONSOLE_PORT_READY message after restore, which can get us into this situation. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio: console: Fix indentationAmit Shah
Convert spaces to tabs and fix indentation for an if statement split into multiple lines. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-02virtio-console: Use virtio_config_val() for retrieving configSasha Levin
This patch modifies virtio-console to use virtio_config_val() instead of a 'if(virtio_has_feature()) vdev->config->get()' construct to retrieve optional values from the config space. Cc: Amit Shah <amit.shah@redhat.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: virtualization@lists.linux-foundation.org Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-10-31drivers/char: Fix implicit use of err.h in ramoops.cPaul Gortmaker
drivers/char/ramoops.c: In function 'ramoops_init': drivers/char/ramoops.c:221: error: implicit declaration of function 'IS_ERR' drivers/char/ramoops.c:222: error: implicit declaration of function 'PTR_ERR' make[3]: *** [drivers/char/ramoops.o] Error 1 Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31drivers/char: Add export.h for EXPORT_SYMBOL/THIS_MODULE as requiredPaul Gortmaker
They will need it called out explicitly in the near future due to a module.h usage cleanup that removes its implicit presence everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31drivers/char: Add module.h to those who were using it implicitlyPaul Gortmaker
A pending cleanup will mean that module.h won't be implicitly everywhere anymore. Make sure the modular drivers in char are actually calling out for <module.h> explicitly in advance. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-28Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (290 commits) Revert "drm/ttm: add a way to bo_wait for either the last read or last write" Revert "drm/radeon/kms: add a new gem_wait ioctl with read/write flags" vmwgfx: Don't pass unused arguments to do_dirty functions vmwgfx: Emulate depth 32 framebuffers drm/radeon: Lower the severity of the radeon lockup messages. drm/i915/dp: Fix eDP on PCH DP on CPT/PPT drm/i915/dp: Introduce is_cpu_edp() drm/i915: use correct SPD type value drm/i915: fix ILK+ infoframe support drm/i915: add DP test request handling drm/i915: read full receiver capability field during DP hot plug drm/i915/dp: Remove eDP special cases from bandwidth checks drm/i915/dp: Fix the math in intel_dp_link_required drm/i915/panel: Always record the backlight level again (but cleverly) i915: Move i915_read/write out of line drm/i915: remove transcoder PLL mashing from mode_set per specs drm/i915: if transcoder disable fails, say which drm/i915: set watermarks for third pipe on IVB drm/i915: export a CPT mode set verification function drm/i915: fix transcoder PLL select masking ...
2011-10-28Merge branch 'x86-rdrand-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, random: Verify RDRAND functionality and allow it to be disabled x86, random: Architectural inlines to get random integers with RDRAND random: Add support for architectural random hooks Fix up trivial conflicts in drivers/char/random.c: the architectural random hooks touched "get_random_int()" that was simplified to use MD5 and not do the keyptr thing any more (see commit 6e5714eaf77d: "net: Compute protocol sequence numbers and fragment IDs using MD5").
2011-10-26Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (121 commits) perf symbols: Increase symbol KSYM_NAME_LEN size perf hists browser: Refuse 'a' hotkey on non symbolic views perf ui browser: Use libslang to read keys perf tools: Fix tracing info recording perf hists browser: Elide DSO column when it is set to just one DSO, ditto for threads perf hists: Don't consider filtered entries when calculating column widths perf hists: Don't decay total_period for filtered entries perf hists browser: Honour symbol_conf.show_{nr_samples,total_period} perf hists browser: Do not exit on tab key with single event perf annotate browser: Don't change selection line when returning from callq perf tools: handle endianness of feature bitmap perf tools: Add prelink suggestion to dso update message perf script: Fix unknown feature comment perf hists browser: Apply the dso and thread filters when merging new batches perf hists: Move the dso and thread filters from hist_browser perf ui browser: Honour the xterm colors perf top tui: Give color hints just on the percentage, like on --stdio perf ui browser: Make the colors configurable and change the defaults perf tui: Remove unneeded call to newtCls on startup perf hists: Don't format the percentage on hist_entry__snprintf ... Fix up conflicts in arch/x86/kernel/kprobes.c manually. Ingo's tree did the insane "add volatile to const array", which just doesn't make sense ("volatile const"?). But we could remove the const *and* make the array volatile to make doubly sure that gcc doesn't optimize it away.. Also fix up kernel/trace/ring_buffer.c non-data-conflicts manually: the reader_lock has been turned into a raw lock by the core locking merge, and there was a new user of it introduced in this perf core merge. Make sure that new use also uses the raw accessor functions.
2011-10-26Merge branch 'core-iommu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, ioapic: Consolidate the explicit EOI code x86, ioapic: Restore the mask bit correctly in eoi_ioapic_irq() x86, kdump, ioapic: Reset remote-IRR in clear_IO_APIC iommu: Rename the DMAR and INTR_REMAP config options x86, ioapic: Define irq_remap_modify_chip_defaults() x86, msi, intr-remap: Use the ioapic set affinity routine iommu: Cleanup ifdefs in detect_intel_iommu() iommu: No need to set dmar_disabled in check_zero_address() iommu: Move IOMMU specific code to intel-iommu.c intr_remap: Call dmar_dev_scope_init() explicitly x86, x2apic: Enable the bios request for x2apic optout
2011-10-26Merge branch 'staging-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging * 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1519 commits) staging: et131x: Remove redundant check and return statement staging: et131x: Mainly whitespace changes to appease checkpatch staging: et131x: Remove last of the forward declarations staging: et131x: Remove even more forward declarations staging: et131x: Remove yet more forward declarations staging: et131x: Remove more forward declarations staging: et131x: Remove forward declaration of et131x_adapter_setup staging: et131x: Remove some forward declarations staging: et131x: Remove unused rx_ring.recv_packet_pool staging: et131x: Remove call to find pci pm capability staging: et131x: Remove redundant et131x_reset_recv() call staging: et131x: Remove unused rx_ring.recv_buffer_pool Staging: bcm: Fix three initialization errors in InterfaceDld.c Staging: bcm: Fix coding style issues in InterfaceDld.c staging:iio:dac: Add AD5360 driver staging:iio:trigger:bfin-timer: Fix compile error Staging: vt6655: add some range checks before memcpy() Staging: vt6655: whitespace fixes to iotcl.c Staging: vt6656: add some range checks before memcpy() Staging: vt6656: whitespace cleanups in ioctl.c ... Fix up conflicts in: - drivers/{Kconfig,Makefile}, drivers/staging/{Kconfig,Makefile}: vg driver movement - drivers/staging/brcm80211/brcmfmac/{dhd_linux.c,mac80211_if.c}: driver removal vs now stale changes - drivers/staging/rtl8192e/r8192E_core.c: driver removal vs now stale changes - drivers/staging/et131x/et131*: driver consolidation into one file, tried to do fixups
2011-10-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (59 commits) MAINTAINERS: linux-m32r is moderated for non-subscribers linux@lists.openrisc.net is moderated for non-subscribers Drop default from "DM365 codec select" choice parisc: Kconfig: cleanup Kernel page size default Kconfig: remove redundant CONFIG_ prefix on two symbols cris: remove arch/cris/arch-v32/lib/nand_init.S microblaze: add missing CONFIG_ prefixes h8300: drop puzzling Kconfig dependencies MAINTAINERS: microblaze-uclinux@itee.uq.edu.au is moderated for non-subscribers tty: drop superfluous dependency in Kconfig ARM: mxc: fix Kconfig typo 'i.MX51' Fix file references in Kconfig files aic7xxx: fix Kconfig references to READMEs Fix file references in drivers/ide/ thinkpad_acpi: Fix printk typo 'bluestooth' bcmring: drop commented out line in Kconfig btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888' doc: raw1394: Trivial typo fix CIFS: Don't free volume_info->UNC until we are entirely done with it. treewide: Correct spelling of successfully in comments ...
2011-10-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm: apm-emulation: use wait_event_freezable() instead of freezer_[do_not_]count()
2011-10-25Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-securityLinus Torvalds
* 'next' of git://selinuxproject.org/~jmorris/linux-security: (95 commits) TOMOYO: Fix incomplete read after seek. Smack: allow to access /smack/access as normal user TOMOYO: Fix unused kernel config option. Smack: fix: invalid length set for the result of /smack/access Smack: compilation fix Smack: fix for /smack/access output, use string instead of byte Smack: domain transition protections (v3) Smack: Provide information for UDS getsockopt(SO_PEERCRED) Smack: Clean up comments Smack: Repair processing of fcntl Smack: Rule list lookup performance Smack: check permissions from user space (v2) TOMOYO: Fix quota and garbage collector. TOMOYO: Remove redundant tasklist_lock. TOMOYO: Fix domain transition failure warning. TOMOYO: Remove tomoyo_policy_memory_lock spinlock. TOMOYO: Simplify garbage collector. TOMOYO: Fix make namespacecheck warnings. target: check hex2bin result encrypted-keys: check hex2bin result ...
2011-10-25Merge branch 'staging-next' into Linux 3.1Greg Kroah-Hartman
This was done to resolve a conflict in the drivers/staging/comedi/drivers/ni_labpc.c file that resolved a build bugfix in Linus's tree with a "better" bugfix that was in the staging-next tree that resolved the issue in a more complete manner. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-24Merge branch 'drm-intel-next' of git://people.freedesktop.org/~keithp/linux ↵Dave Airlie
into drm-core-next * 'drm-intel-next' of git://people.freedesktop.org/~keithp/linux: (72 commits) drm/i915/dp: Fix eDP on PCH DP on CPT/PPT drm/i915/dp: Introduce is_cpu_edp() drm/i915: use correct SPD type value drm/i915: fix ILK+ infoframe support drm/i915: add DP test request handling drm/i915: read full receiver capability field during DP hot plug drm/i915/dp: Remove eDP special cases from bandwidth checks drm/i915/dp: Fix the math in intel_dp_link_required drm/i915/panel: Always record the backlight level again (but cleverly) i915: Move i915_read/write out of line drm/i915: remove transcoder PLL mashing from mode_set per specs drm/i915: if transcoder disable fails, say which drm/i915: set watermarks for third pipe on IVB drm/i915: export a CPT mode set verification function drm/i915: fix transcoder PLL select masking drm/i915: fix IVB cursor support drm/i915: fix debug output for 3 pipe configs drm/i915: add PLL sharing support to handle 3 pipes drm/i915: fix PCH PLL assertion check for 3 pipes drm/i915: use transcoder select bits on VGA and HDMI on CPT ...
2011-10-20drm/i915: ILK + VT-d workaroundBen Widawsky
Idle the GPU before doing any unmaps. We know if VT-d is in use through an exported variable from iommu code. This should avoid a known HW issue. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-10hw_random: add driver for atmel true hardware random number generatorPeter Korsgaard
For the IP block on 9g45/9g46/9m10/9m11. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Reviewed-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-10x86, nmi: Wire up NMI handlers to new routinesDon Zickus
Just convert all the files that have an nmi handler to the new routines. Most of it is straight forward conversion. A couple of places needed some tweaking like kgdb which separates the debug notifier from the nmi handler and mce removes a call to notify_die. [Thanks to Ying for finding out the history behind that mce call https://lkml.org/lkml/2010/5/27/114 And Boris responding that he would like to remove that call because of it https://lkml.org/lkml/2011/9/21/163] The things that get converted are the registeration/unregistration routines and the nmi handler itself has its args changed along with code removal to check which list it is on (most are on one NMI list except for kgdb which has both an NMI routine and an NMI Unknown routine). Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Corey Minyard <minyard@acm.org> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Corey Minyard <minyard@acm.org> Cc: Jack Steiner <steiner@sgi.com> Link: http://lkml.kernel.org/r/1317409584-23662-4-git-send-email-dzickus@redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-09-27doc: fix broken referencesPaul Bolle
There are numerous broken references to Documentation files (in other Documentation files, in comments, etc.). These broken references are caused by typo's in the references, and by renames or removals of the Documentation files. Some broken references are simply odd. Fix these broken references, sometimes by dropping the irrelevant text they were part of. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-23TPM: Zero buffer after copying to userspacePeter Huewe
Since the buffer might contain security related data it might be a good idea to zero the buffer after we have copied it to userspace. This got assigned CVE-2011-1162. Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: Stable Kernel <stable@kernel.org> Signed-off-by: James Morris <jmorris@namei.org>
2011-09-23TPM: Call tpm_transmit with correct sizePeter Huewe
This patch changes the call of tpm_transmit by supplying the size of the userspace buffer instead of TPM_BUFSIZE. This got assigned CVE-2011-1161. [The first hunk didn't make sense given one could expect way less data than TPM_BUFSIZE, so added tpm_transmit boundary check over bufsiz instead The last parameter of tpm_transmit() reflects the amount of data expected from the device, and not the buffer size being supplied to it. It isn't ideal to parse it directly, so we just set it to the maximum the input buffer can handle and let the userspace API to do such job.] Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: Stable Kernel <stable@kernel.org> Signed-off-by: James Morris <jmorris@namei.org>
2011-09-23TPM: tpm_nsc: Fix a double free of pdev in cleanup_nscAxel Lin
platform_device_unregister() will release all resources and remove it from the subsystem, then drop reference count by calling platform_device_put(). We should not call kfree(pdev) after platform_device_unregister(pdev). Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2011-09-23TPM: TCG_ATMEL should depend on HAS_IOPORTGeert Uytterhoeven
On m68k, I get: drivers/char/tpm/tpm_atmel.h: In function ‘atmel_get_base_addr’: drivers/char/tpm/tpm_atmel.h:129: error: implicit declaration of function ‘ioport_map’ drivers/char/tpm/tpm_atmel.h:129: warning: return makes pointer from integer without a cast The code in tpm_atmel.h supports PPC64 (using the device tree and ioremap()) and "anything else" (using ioport_map()). However, ioportmap() is only available on platforms that set HAS_IOPORT. Although PC64 seems to have HAS_IOPORT, a "depends on HAS_IOPORT" should work, but I think it's better to expose the special PPC64 handling explicit using "depends on PPC64 || HAS_IOPORT". Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2011-09-21iommu: Rename the DMAR and INTR_REMAP config optionsSuresh Siddha
Change the CONFIG_DMAR to CONFIG_INTEL_IOMMU to be consistent with the other IOMMU options. Rename the CONFIG_INTR_REMAP to CONFIG_IRQ_REMAP to match the irq subsystem name. And define the CONFIG_DMAR_TABLE for the common ACPI DMAR routines shared by both CONFIG_INTEL_IOMMU and CONFIG_IRQ_REMAP. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: yinghai@kernel.org Cc: youquan.song@intel.com Cc: joerg.roedel@amd.com Cc: tony.luck@intel.com Cc: dwmw2@infradead.org Link: http://lkml.kernel.org/r/20110824001456.558630224@sbsiddha-desk.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-09-15Merge branch 'master' into for-nextJiri Kosina
Fast-forward merge with Linus to be able to merge patches based on more recent version of the tree.
2011-09-15drivers/char/rtc: use printk_ratelimited instead of printk_ratelimitChristian Dietrich
Since printk_ratelimit() shouldn't be used anymore (see comment in include/linux/printk.h), replace it with printk_ratelimited. Signed-off-by: Christian Dietrich <christian.dietrich@informatik.uni-erlangen.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-15char: Convert vmalloc/memset to vzallocJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-29Merge 3.1-rc4 into staging-nextGreg Kroah-Hartman
This resolves a conflict with: drivers/staging/brcm80211/brcmsmac/types.h Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-25drivers/char/msm_smd_pkt.c: don't use IS_ERR()Thomas Meyer
The various basic memory allocation function return NULL, not an ERR_PTR. The semantic patch that makes this change is available in scripts/coccinelle/null/eno.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Cc: Niranjana Vishwanathapura <nvishwan@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-24Staging: remove drivers/char/scc.h as it should have gone a while agoGreg Kroah-Hartman
This was needed by one of the generic serial drivers that was removed a while ago. No one even noticed that the driver could not be built properly while it was in the staging directory. So this removed the unneeded .h file. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-24tpm: suppress durations sysfs output if not readStefan Berger
Suppress the output in the 'durations' sysfs entry if they were not read during driver initialization. This is similar to other sysfs entries that return nothing if for some reason sending the commands to the TPM fails. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2011-08-23[IA64] agp/hp-agp: Allow binding user memory to the AGP GARTÉmeric Maschino
dmesg reports: [   29.365973] [TTM] AGP Bind memory failed. [   29.366015] radeon 0000:80:00.0: object_init failed for (4096, 0x00000002) [   29.366052] radeon 0000:80:00.0: (-22) create WB bo failed [   29.366087] radeon 0000:80:00.0: Disabling GPU acceleration [   29.366124] [drm] radeon: cp finalized [   29.366168] [drm] radeon: cp finalized [   29.366210] [TTM] Finalizing pool allocator. [   29.366924] [TTM] Zone  kernel: Used memory at exit: 0 kiB. [   29.366961] [TTM] Zone   dma32: Used memory at exit: 0 kiB. [   29.366996] [drm] radeon: ttm finalized [   29.367030] [drm] Forcing AGP to PCI mode This patch allows binding user memory to the AGP GART on zx1-based systems. dmesg thus no more complains about AGP bind memory failure, disabled GPU acceleration or AGP mode forced to PCI. Original work from Francisco Jerez in agp/amd-k7 (https://lkml.org/lkml/2010/10/15/469). Tested-by: Émeric Maschino <emeric.maschino@gmail.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2011-08-23apm-emulation: use wait_event_freezable() instead of freezer_[do_not_]count()Tejun Heo
vfork is moving away from freezer_[do_not_]count() one way or the other leaving apm_ioctl() as the only user. apm_ioctl() just wants to wait for suspend/resume cycle to complete without hindering the freezer. Use wait_event_freezable() instead. The only annoyance is that wait_event_freezable() wakes up with -ERESTART if there are pending signals while apm_ioctl() wants to ignore all signals until suspend is complete. We can play with @current->[real_]blocked but this is hardly a performance or latency critical path - simply chill a bit on each iteration until SUSPEND_DONE for unlikely cases where there are pending signals. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-06net: Compute protocol sequence numbers and fragment IDs using MD5.David S. Miller
Computers have become a lot faster since we compromised on the partial MD4 hash which we use currently for performance reasons. MD5 is a much safer choice, and is inline with both RFC1948 and other ISS generators (OpenBSD, Solaris, etc.) Furthermore, only having 24-bits of the sequence number be truly unpredictable is a very serious limitation. So the periodic regeneration and 8-bit counter have been removed. We compute and use a full 32-bit sequence number. For ipv6, DCCP was found to use a 32-bit truncated initial sequence number (it needs 43-bits) and that is fixed here as well. Reported-by: Dan Kaminsky <dan@doxpara.com> Tested-by: Willy Tarreau <w@1wt.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-03tpm_tis: fix build when ACPI is not enabledRandy Dunlap
Fix tpm_tis.c build when CONFIG_ACPI is not enabled by providing a stub function. Fixes many build errors/warnings: drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name' drivers/char/tpm/tpm_tis.c:89: error: request for member 'list' in something not a structure or union ... Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Leendert van Doorn <leendert@watson.ibm.com> Cc: James Morris <jmorris@namei.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-03ramoops: update module parametersSergiu Iordache
Update the module parameters when platform data is used. This means that they can be read from /sys/module/ramoops/parameters in order to parse the memory area. Signed-off-by: Sergiu Iordache <sergiu@chromium.org> Cc: Marco Stornelli <marco.stornelli@gmail.com> Cc: Seiji Aguchi <seiji.aguchi@hds.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/tile/mm/init.c: trivial: use BUG_ON arch/tile: remove useless set_fixmap_nocache() macro arch/tile: add hypervisor-based character driver for SPI flash ROM ioctl-number.txt: add the tile hardwall ioctl range tile: use generic-y format for one-line asm-generic headers clocksource: tile: convert to use clocksource_register_hz
2011-08-02Merge tag 'v3.0' of ↵Chris Metcalf
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
2011-07-31random: Add support for architectural random hooksH. Peter Anvin
Add support for architecture-specific hooks into the kernel-directed random number generator interfaces. This patchset does not use the architecture random number generator interfaces for the userspace-directed interfaces (/dev/random and /dev/urandom), thus eliminating the need to distinguish between them based on a pool pointer. Changes in version 3: - Moved the hooks from extract_entropy() to get_random_bytes(). - Changes the hooks to inlines. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Matt Mackall <mpm@selenic.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "Theodore Ts'o" <tytso@mit.edu>
2011-07-29ramoops: fix compile failure on pariscJames Bottomley
Fixes this: drivers/char/ramoops.c: In function 'ramoops_init': drivers/char/ramoops.c:221: error: implicit declaration of function 'IS_ERR' drivers/char/ramoops.c:222: error: implicit declaration of function 'PTR_ERR' If it actually builds on other platforms, it's probably getting linux/err.h via some other #include. Signed-off-by: James Bottomley <JBottomley@Parallels.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-28n2rng: Attach on Niagara-T3.David S. Miller
And stop referring to Victoria Falls, as the attribute we're talking about is whether the rng is multi-unit capable which applies to several chip variants now. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-27Merge branch 'for-linus' of ↵Linus Torvalds
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: (54 commits) tpm_nsc: Fix bug when loading multiple TPM drivers tpm: Move tpm_tis_reenable_interrupts out of CONFIG_PNP block tpm: Fix compilation warning when CONFIG_PNP is not defined TOMOYO: Update kernel-doc. tpm: Fix a typo tpm_tis: Probing function for Intel iTPM bug tpm_tis: Fix the probing for interrupts tpm_tis: Delay ACPI S3 suspend while the TPM is busy tpm_tis: Re-enable interrupts upon (S3) resume tpm: Fix display of data in pubek sysfs entry tpm_tis: Add timeouts sysfs entry tpm: Adjust interface timeouts if they are too small tpm: Use interface timeouts returned from the TPM tpm_tis: Introduce durations sysfs entry tpm: Adjust the durations if they are too small tpm: Use durations returned from TPM TOMOYO: Enable conditional ACL. TOMOYO: Allow using argv[]/envp[] of execve() as conditions. TOMOYO: Allow using executable's realpath and symlink's target as conditions. TOMOYO: Allow using owner/group etc. of file objects as conditions. ... Fix up trivial conflict in security/tomoyo/realpath.c