1. 29 Dec, 2014 2 commits
    • Stephan Mueller's avatar
      crypto: algif_rng - enable RNG interface compilation · 2f375538
      Stephan Mueller authored
      Enable compilation of the RNG AF_ALG support and provide a Kconfig
      option to compile the RNG AF_ALG support.
      Signed-off-by: default avatarStephan Mueller <smueller@chronox.de>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      2f375538
    • Stephan Mueller's avatar
      crypto: algif_rng - add random number generator support · 5afdfd22
      Stephan Mueller authored
      This patch adds the random number generator support for AF_ALG.
      
      A random number generator's purpose is to generate data without
      requiring the caller to provide any data. Therefore, the AF_ALG
      interface handler for RNGs only implements a callback handler for
      recvmsg.
      
      The following parameters provided with a recvmsg are processed by the
      RNG callback handler:
      
      	* sock - to resolve the RNG context data structure accessing the
      	  RNG instance private to the socket
      
      	* len - this parameter allows userspace callers to specify how
      	  many random bytes the RNG shall produce and return. As the
      	  kernel context for the RNG allocates a buffer of 128 bytes to
      	  store random numbers before copying them to userspace, the len
      	  parameter is checked that it is not larger than 128. If a
      	  caller wants more random numbers, a new request for recvmsg
      	  shall be made.
      
      The size of 128 bytes is chose because of the following considerations:
      
      	* to increase the memory footprint of the kernel too much (note,
      	  that would be 128 bytes per open socket)
      
      	* 128 is divisible by any typical cryptographic block size an
      	  RNG may have
      
      	* A request for random numbers typically only shall supply small
      	  amount of data like for keys or IVs that should only require
      	  one invocation of the recvmsg function.
      
      Note, during instantiation of the RNG, the code checks whether the RNG
      implementation requires seeding. If so, the RNG is seeded with output
      from get_random_bytes.
      
      A fully working example using all aspects of the RNG interface is
      provided at http://www.chronox.de/libkcapi.htmlSigned-off-by: default avatarStephan Mueller <smueller@chronox.de>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      5afdfd22
  2. 25 Dec, 2014 6 commits
  3. 23 Dec, 2014 5 commits
  4. 22 Dec, 2014 19 commits
  5. 20 Dec, 2014 8 commits
    • Linus Torvalds's avatar
      Linux 3.19-rc1 · 97bf6af1
      Linus Torvalds authored
      97bf6af1
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux · 60815cf2
      Linus Torvalds authored
      Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger:
       "kernel: Provide READ_ONCE and ASSIGN_ONCE
      
        As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
        ACCESS_ONCE might fail with specific compilers for non-scalar
        accesses.
      
        Here is a set of patches to tackle that problem.
      
        The first patch introduce READ_ONCE and ASSIGN_ONCE.  If the data
        structure is larger than the machine word size memcpy is used and a
        warning is emitted.  The next patches fix up several in-tree users of
        ACCESS_ONCE on non-scalar types.
      
        This does not yet contain a patch that forces ACCESS_ONCE to work only
        on scalar types.  This is targetted for the next merge window as Linux
        next already contains new offenders regarding ACCESS_ONCE vs.
        non-scalar types"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux:
        s390/kvm: REPLACE barrier fixup with READ_ONCE
        arm/spinlock: Replace ACCESS_ONCE with READ_ONCE
        arm64/spinlock: Replace ACCESS_ONCE READ_ONCE
        mips/gup: Replace ACCESS_ONCE with READ_ONCE
        x86/gup: Replace ACCESS_ONCE with READ_ONCE
        x86/spinlock: Replace ACCESS_ONCE with READ_ONCE
        mm: replace ACCESS_ONCE with READ_ONCE or barriers
        kernel: Provide READ_ONCE and ASSIGN_ONCE
      60815cf2
    • Linus Torvalds's avatar
      Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux · bfc7249c
      Linus Torvalds authored
      Pull clk framework updates from Mike Turquette:
       "This is much later than usual due to several last minute bugs that had
        to be addressed.  As usual the majority of changes are new drivers and
        modifications to existing drivers.  The core recieved many fixes along
        with the groundwork for several large changes coming in the future
        which will better parition clock providers from clock consumers"
      
      * tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
        clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
        ARM: OMAP3: clock: fix boot breakage in legacy mode
        ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
        clk: Really fix deadlock with mmap_sem
        clk: mmp: fix sparse non static symbol warning
        clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
        clk: change clk_debugfs_add_file to take a struct clk_hw
        clk: Don't expose __clk_get_accuracy
        clk: Don't try to use a struct clk* after it could have been freed
        clk: Remove unused function __clk_get_prepare_count
        clk: samsung: Fix double add of syscore ops after driver rebind
        clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
        clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
        clk: samsung: remove unnecessary inclusion of header files from clk.h
        clk: samsung: remove unnecessary CONFIG_OF from clk.c
        clk: samsung: Spelling s/bwtween/between/
        clk: rockchip: Add support for the mmc clock phases using the framework
        clk: rockchip: add bindings for the mmc clocks
        clk: rockchip: rk3288 export i2s0_clkout for use in DT
        clk: rockchip: use clock ID for DMC (memory controller) on rk3288
        ...
      bfc7249c
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · a4e1328a
      Linus Torvalds authored
      Pull more i2c updates from Wolfram Sang:
       "Included are two bugfixes needing some bigger refactoring (sh_mobile:
        deferred probe with DMA, mv64xxx: fix offload support) and one
        deprecated driver removal I thought would go in via ppc but I
        misunderstood.  It has a proper ack from BenH"
      
      * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: sh_mobile: fix uninitialized var when debug is enabled
        macintosh: therm_pm72: delete deprecated driver
        i2c: sh_mobile: I2C_SH_MOBILE should depend on HAS_DMA
        i2c: sh_mobile: rework deferred probing
        i2c: sh_mobile: refactor DMA setup
        i2c: mv64xxx: rework offload support to fix several problems
        i2c: mv64xxx: use BIT() macro for register value definitions
      a4e1328a
    • Linus Torvalds's avatar
      Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · cdce6ac2
      Linus Torvalds authored
      Pull SCSI update from James Bottomley:
       "This is a much shorter set of patches that were on the go but didn't
        make it in to the early pull request for the merge window.  It's
        really a set of bug fixes plus some final cleanup work on the new tag
        queue API"
      
      * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        storvsc: ring buffer failures may result in I/O freeze
        ipr: set scsi_level correctly for disk arrays
        ipr: add support for async scanning to speed up boot
        scsi_debug: fix missing "break;" in SDEBUG_UA_CAPACITY_CHANGED case
        scsi_debug: take sdebug_host_list_lock when changing capacity
        scsi_debug: improve driver description in Kconfig
        scsi_debug: fix compare and write errors
        qla2xxx: fix race in handling rport deletion during recovery causes panic
        scsi: blacklist RSOC for Microsoft iSCSI target devices
        scsi: fix random memory corruption with scsi-mq + T10 PI
        Revert "[SCSI] mpt3sas: Remove phys on topology change"
        Revert "[SCSI] mpt2sas: Remove phys on topology change."
        esas2r: Correct typos of "validate" in a comment
        fc: FCP_PTA_SIMPLE is 0
        ibmvfc: remove unused tag variable
        scsi: remove MSG_*_TAG defines
        scsi: remove scsi_set_tag_type
        scsi: remove scsi_get_tag_type
        scsi: never drop to untagged mode during queue ramp down
        scsi: remove ->change_queue_type method
      cdce6ac2
    • Linus Torvalds's avatar
      Merge tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 5d6a5468
      Linus Torvalds authored
      Pull CONFIG_PM_RUNTIME elimination from Rafael Wysocki:
       "This removes the last few uses of CONFIG_PM_RUNTIME introduced
        recently and makes that config option finally go away.
      
        CONFIG_PM will be available directly from the menu now and also it
        will be selected automatically if CONFIG_SUSPEND or CONFIG_HIBERNATION
        is set"
      
      * tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM: Eliminate CONFIG_PM_RUNTIME
        tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM
        sound: sst-haswell-pcm: Replace CONFIG_PM_RUNTIME with CONFIG_PM
        spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
      5d6a5468
    • Linus Torvalds's avatar
      Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 787140ad
      Linus Torvalds authored
      Pull misc kbuild changes from Michal Marek:
       "There are only a few things in the misc branch:
      
         - Fix for bugon.cocci semantic patch
         - Kdevelop4 files are .gitignored
         - Put make binrpm-pkg on diet"
      
      * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        scripts/package: binrpm-pkg do not create source and devel package
        .gitignore: Add Kdevelop4 project files
        bugon.cocci: fix Options at the macro
      787140ad
    • Linus Torvalds's avatar
      Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · d08372ca
      Linus Torvalds authored
      Pull kbuild updates from Michal Marek:
       "Here are the kbuild changes for v3.19-rc1:
      
         - Cleanups and deduplication in the main Makefile and
           scripts/Makefile.*
         - Sort the output of *config targets in make help
         - Old <linux/version.h> is always removed to avoid a surprise during
           bisecting
         - Warning fix in kconfig"
      
      * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        kbuild: remove redundant -rR flag of hdr-inst
        kbuild: Fix make help-<board series> on powerpc
        kbuild: Automatically remove stale <linux/version.h> file
        kconfig: Fix warning "‘jump’ may be used uninitialized"
        Makefile: sort list of defconfig targets in make help output
        kbuild: Remove duplicate $(cmd) definition in Makefile.clean
        kbuild: collect shorthands into scripts/Kbuild.include
      d08372ca