Eric Lee / smarc-fsl-linux-kernel

10 Nov, 2018

1 commit

14 May, 2018

1 commit

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

21 Jun, 2017

1 commit

  • ca18d6f76   block: Make most scsi_req_init() calls implicit ... Browse Code »

    Instead of explicitly calling scsi_req_init() after blk_get_request(),
    call that function from inside blk_get_request(). Add an
    .initialize_rq_fn() callback function to the block drivers that need
    it. Merge the IDE .init_rq_fn() function into .initialize_rq_fn()
    because it is too small to keep it as a separate function. Keep the
    scsi_req_init() call in ide_prep_sense() because it follows a
    blk_rq_init() call.

    References: commit 82ed4db499b8 ("block: split scsi_request out of struct request")
    Signed-off-by: Bart Van Assche
    Cc: Christoph Hellwig
    Cc: Hannes Reinecke
    Cc: Omar Sandoval
    Cc: Nicholas Bellinger
    Signed-off-by: Jens Axboe

    Bart Van Assche
     

26 Apr, 2017

1 commit

21 Apr, 2017

2 commits

  • 17d5363b8   scsi: introduce a result field in struct scsi_request ... Browse Code »

    This passes on the scsi_cmnd result field to users of passthrough
    requests. Currently we abuse req->errors for this purpose, but that
    field will go away in its current form.

    Note that the old IDE code abuses the errors field in very creative
    ways and stores all kinds of different values in it. I didn't dare
    to touch this magic, so the abuses are brought forward 1:1.

    Signed-off-by: Christoph Hellwig
    Reviewed-by: Martin K. Petersen
    Reviewed-by: Bart Van Assche
    Signed-off-by: Jens Axboe

    Christoph Hellwig
     
  • b7819b925   block: remove the blk_execute_rq return value ... Browse Code »

    The function only returns -EIO if rq->errors is non-zero, which is not
    very useful and lets a large number of callers ignore the return value.

    Just let the callers figure out their error themselves.

    Signed-off-by: Christoph Hellwig
    Reviewed-by: Johannes Thumshirn
    Reviewed-by: Bart Van Assche
    Signed-off-by: Jens Axboe

    Christoph Hellwig
     

01 Feb, 2017

2 commits

  • aebf526b5   block: fold cmd_type into the REQ_OP_ space ... Browse Code »

    Instead of keeping two levels of indirection for requests types, fold it
    all into the operations. The little caveat here is that previously
    cmd_type only applied to struct request, while the request and bio op
    fields were set to plain REQ_OP_READ/WRITE even for passthrough
    operations.

    Instead this patch adds new REQ_OP_* for SCSI passthrough and driver
    private requests, althought it has to add two for each so that we
    can communicate the data in/out nature of the request.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Jens Axboe

    Christoph Hellwig
     
  • 2f5a8e80f   ide: don't abuse cmd_type ... Browse Code »

    Currently the legacy ide driver defines several request types of it's own,
    which is in the way of removing that field entirely.

    Instead add a type field to struct ide_request and use that to distinguish
    the different types of IDE-internal requests.

    It's a bit of a mess, but so is the surrounding code..

    Signed-off-by: Christoph Hellwig
    Acked-by: David S. Miller
    Signed-off-by: Jens Axboe

    Christoph Hellwig
     

28 Jan, 2017

1 commit

  • 82ed4db49   block: split scsi_request out of struct request ... Browse Code »

    And require all drivers that want to support BLOCK_PC to allocate it
    as the first thing of their private data. To support this the legacy
    IDE and BSG code is switched to set cmd_size on their queues to let
    the block layer allocate the additional space.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Jens Axboe

    Christoph Hellwig
     

07 Nov, 2015

1 commit

  • 71baba4b9   mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM ... Browse Code »

    __GFP_WAIT was used to signal that the caller was in atomic context and
    could not sleep. Now it is possible to distinguish between true atomic
    context and callers that are not willing to sleep. The latter should
    clear __GFP_DIRECT_RECLAIM so kswapd will still wake. As clearing
    __GFP_WAIT behaves differently, there is a risk that people will clear the
    wrong flags. This patch renames __GFP_WAIT to __GFP_RECLAIM to clearly
    indicate what it does -- setting it allows all reclaim activity, clearing
    them prevents it.

    [akpm@linux-foundation.org: fix build]
    [akpm@linux-foundation.org: coding-style fixes]
    Signed-off-by: Mel Gorman
    Acked-by: Michal Hocko
    Acked-by: Vlastimil Babka
    Acked-by: Johannes Weiner
    Cc: Christoph Lameter
    Acked-by: David Rientjes
    Cc: Vitaly Wool
    Cc: Rik van Riel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mel Gorman
     

06 May, 2015

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

19 Jan, 2010

2 commits

26 Jun, 2009

1 commit

  • 5e955245d   ide: always kill the whole request on error ... Browse Code »

    * Use blk_rq_bytes() instead of obsolete ide_rq_bytes() in ide_kill_rq()
    and ide_floppy_do_request() for failed requests.
    [ bugfix part ]

    * Use blk_rq_bytes() instead of obsolete ide_rq_bytes() in ide_do_devset()
    and ide_complete_drive_reset(). Then remove ide_rq_bytes().
    [ cleanup part ]

    Signed-off-by: Bartlomiej Zolnierkiewicz
    Signed-off-by: David S. Miller

    Bartlomiej Zolnierkiewicz
     

27 Mar, 2009

1 commit

  • 130e88670   ide: remove ide_end_request() ... Browse Code »

    * Add ide_rq_bytes() helper.

    * Add blk_noretry_request() quirk to ide_complete_rq() (currently only fs
    requests can be marked as "noretry" so there is no change in behavior).

    * Switch current ide_end_request() users to use ide_complete_rq().

    [ No need to check for rq->nr_sectors == 0 in {ide_dma,task_pio}_intr(),
    nsectors == 0 in cdrom_end_request() and err == 0 in ide_do_devset(). ]

    * Remove no longer needed ide_end_request().

    There should be no functional changes caused by this patch.

    Signed-off-by: Bartlomiej Zolnierkiewicz

    Bartlomiej Zolnierkiewicz
     

25 Mar, 2009

1 commit