11 Jun, 2020

1 commit

  • Fix the following sparse warning:

    ./spidev_test.c:50:9: warning: symbol 'default_tx' was not declared. Should it be static?
    ./spidev_test.c:59:9: warning: symbol 'default_rx' was not declared. Should it be static?
    ./spidev_test.c:60:6: warning: symbol 'input_tx' was not declared. Should it be static?

    Signed-off-by: Qing Zhang
    Link: https://lore.kernel.org/r/1591880212-13479-1-git-send-email-zhangqing@loongson.cn
    Signed-off-by: Mark Brown

    Qing Zhang
     

08 Jun, 2020

1 commit

  • Consistently use %u to format unsigned numbers.
    For "bits" this doesn't matter that much, as it is "uint8_t".
    However, "speed" is "uint32_t", so in case people use "-s -1" to force
    the maximum, they would see:

    max speed: -1 Hz (4294967 KHz)

    While at it, use "k" (kilo) instead of "K" (kelvin) in "kHz".

    Signed-off-by: Geert Uytterhoeven
    Link: https://lore.kernel.org/r/20200608100049.30648-1-geert+renesas@glider.be
    Signed-off-by: Mark Brown

    Geert Uytterhoeven
     

16 Apr, 2020

1 commit


15 Apr, 2020

1 commit

  • In the current code, it only removes *.o and .*.o.d file when make clean,
    there still exists useless .*.o.cmd file, just remove it.

    Without this patch:

    [yangtiezhu@linux spi]$ make
    [yangtiezhu@linux spi]$ make clean
    [yangtiezhu@linux spi]$ ls -1 .*.o.cmd
    .spidev_fdx-in.o.cmd
    .spidev_fdx.o.cmd
    .spidev_test-in.o.cmd
    .spidev_test.o.cmd

    With this patch:

    [yangtiezhu@linux spi]$ make
    [yangtiezhu@linux spi]$ make clean
    [yangtiezhu@linux spi]$ ls -1 .*.o.cmd
    ls: cannot access .*.o.cmd: No such file or directory

    Signed-off-by: Tiezhu Yang
    Link: https://lore.kernel.org/r/1586230512-5507-1-git-send-email-yangtiezhu@loongson.cn
    Signed-off-by: Mark Brown

    Tiezhu Yang
     

04 Apr, 2020

1 commit

  • Pull SPDX updates from Greg KH:
    "Here are three SPDX patches for 5.7-rc1.

    One fixes up the SPDX tag for a single driver, while the other two go
    through the tree and add SPDX tags for all of the .gitignore files as
    needed.

    Nothing too complex, but you will get a merge conflict with your
    current tree, that should be trivial to handle (one file modified by
    two things, one file deleted.)

    All three of these have been in linux-next for a while, with no
    reported issues other than the merge conflict"

    * tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
    ASoC: MT6660: make spdxcheck.py happy
    .gitignore: add SPDX License Identifier
    .gitignore: remove too obvious comments

    Linus Torvalds
     

25 Mar, 2020

1 commit


13 Feb, 2020

4 commits

  • In the current code, it only removes "include/linux/spi/spidev.h" file
    when make clean and there still exists useless "include/linux/spi/"
    directory, just remove it.

    Signed-off-by: Tiezhu Yang
    Link: https://lore.kernel.org/r/1581567368-8055-4-git-send-email-yangtiezhu@loongson.cn
    Signed-off-by: Mark Brown

    Tiezhu Yang
     
  • It is better to use perror() only if errno is not 0, it should use printf()
    when errno is 0, otherwise there exists redudant ": Success".

    E.g. without this patch:

    $ ./spidev_test -p 1234 --input test.bin
    only one of -p and --input may be selected: Success
    Aborted (core dumped)

    With this patch:

    $ ./spidev_test -p 1234 --input test.bin
    only one of -p and --input may be selected
    Aborted (core dumped)

    Signed-off-by: Tiezhu Yang
    Reviewed-by: Geert Uytterhoeven
    Link: https://lore.kernel.org/r/1581567368-8055-3-git-send-email-yangtiezhu@loongson.cn
    Signed-off-by: Mark Brown

    Tiezhu Yang
     
  • It is better to check input_tx and input_file first after parse options.
    Otherwise, it will do some useless operations when both -p and --input
    are selected.

    Signed-off-by: Tiezhu Yang
    Reviewed-by: Geert Uytterhoeven
    Link: https://lore.kernel.org/r/1581567368-8055-2-git-send-email-yangtiezhu@loongson.cn
    Signed-off-by: Mark Brown

    Tiezhu Yang
     
  • When call print_usage() in parse_opts(), it will exit directly.
    Since break is not useful after exit statement, remove it.

    Signed-off-by: Tiezhu Yang
    Reviewed-by: Geert Uytterhoeven
    Link: https://lore.kernel.org/r/1581567368-8055-1-git-send-email-yangtiezhu@loongson.cn
    Signed-off-by: Mark Brown

    Tiezhu Yang
     

31 May, 2019

1 commit

  • Based on 1 normalized pattern(s):

    this program is free software you can redistribute it and or modify
    it under the terms of the gnu general public license as published by
    the free software foundation either version 2 of the license

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 24 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Alexios Zavras
    Reviewed-by: Steve Winslow
    Reviewed-by: Allison Randal
    Reviewed-by: Richard Fontana
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190528170026.162703968@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

21 May, 2019

1 commit


05 Sep, 2018

1 commit

  • - Print spaces as spaces,
    - Do not print characters > 126, as they will be shown as garbage
    in the modern UTF-8 era,
    - Use a normal period instead of its hexadecimal ASCII value,
    - Delimit the text part with pipe symbols on both sides (was left side
    only), without any spaces, to make it clear where the decoded text
    starts and ends,
    - Drop a useless comment.

    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Mark Brown

    Geert Uytterhoeven
     

22 Feb, 2018

1 commit

  • Currently a number of Makefiles break when used with toolchains that
    pass extra flags in CC and other cross-compile related variables (such
    as --sysroot).

    Thus we get this error when we use a toolchain that puts --sysroot in
    the CC var:

    ~/src/linux/tools$ make iio
    [snip]
    iio_event_monitor.c:18:10: fatal error: unistd.h: No such file or directory
    #include
    ^~~~~~~~~~

    This occurs because we clobber several env vars related to
    cross-compiling with lines like this:

    CC = $(CROSS_COMPILE)gcc

    Although this will point to a valid cross-compiler, we lose any extra
    flags that might exist in the CC variable, which can break toolchains
    that rely on them (for example, those that use --sysroot).

    This easily shows up using a Yocto SDK:

    $ . [snip]/sdk/environment-setup-cortexa8hf-neon-poky-linux-gnueabi

    $ echo $CC
    arm-poky-linux-gnueabi-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard
    -mcpu=cortex-a8
    --sysroot=[snip]/sdk/sysroots/cortexa8hf-neon-poky-linux-gnueabi

    $ echo $CROSS_COMPILE
    arm-poky-linux-gnueabi-

    $ echo ${CROSS_COMPILE}gcc
    krm-poky-linux-gnueabi-gcc

    Although arm-poky-linux-gnueabi-gcc is a cross-compiler, we've lost the
    --sysroot and other flags that enable us to find the right libraries to
    link against, so we can't find unistd.h and other libraries and headers.
    Normally with the --sysroot flag we would find unistd.h in the sdk
    directory in the sysroot:

    $ find [snip]/sdk/sysroots -path '*/usr/include/unistd.h'
    [snip]/sdk/sysroots/cortexa8hf-neon-poky-linux-gnueabi/usr/include/unistd.h

    The perf Makefile adds CC = $(CROSS_COMPILE)gcc if and only if CC is not
    already set, and it compiles correctly with the above toolchain.

    So, generalize the logic that perf uses in the common Makefile and
    remove the manual CC = $(CROSS_COMPILE)gcc lines from each Makefile.

    Note that this patch does not fix cross-compile for all the tools (some
    have other bugs), but it does fix it for all except usb and acpi, which
    still have other unrelated issues.

    I tested both with and without the patch on native and cross-build and
    there appear to be no regressions.

    Link: http://lkml.kernel.org/r/20180107214028.23771-1-martin@martingkelly.com
    Signed-off-by: Martin Kelly
    Acked-by: Mark Brown
    Cc: Tejun Heo
    Cc: Li Zefan
    Cc: Johannes Weiner
    Cc: Linus Walleij
    Cc: "K. Y. Srinivasan"
    Cc: Haiyang Zhang
    Cc: Stephen Hemminger
    Cc: Jonathan Cameron
    Cc: Pali Rohar
    Cc: Richard Purdie
    Cc: Jacek Anaszewski
    Cc: Pavel Machek
    Cc: Peter Zijlstra
    Cc: Ingo Molnar
    Cc: Arnaldo Carvalho de Melo
    Cc: Robert Moore
    Cc: Lv Zheng
    Cc: "Rafael J. Wysocki"
    Cc: Greg Kroah-Hartman
    Cc: Valentina Manea
    Cc: Shuah Khan
    Cc: Mario Limonciello
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Martin Kelly
     

02 Nov, 2017

1 commit

  • 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
     

26 Jul, 2017

2 commits


22 Mar, 2017

1 commit


04 Nov, 2016

1 commit


01 Oct, 2016

2 commits


14 Sep, 2016

1 commit

  • Sometimes spidev_test crashes with:

    *** Error in `spidev_test': munmap_chunk(): invalid pointer: 0x00022020 ***
    Aborted

    or just

    Segmentation fault

    This is due to transfer_escaped_string() miscalculating the required
    size of the buffer by one byte, causing a buffer overflow in unescape().

    Drop the bogus "+ 1" in the strlen() parameter to fix this.

    Note that unescape() never copies the zero-terminator of the source
    string, so it writes at most as many bytes as the length of the source
    string.

    Fixes: 30061915be6e3a2c (spi: spidev_test: Added input buffer from the terminal)
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Mark Brown
    Cc: # v4.5+

    Geert Uytterhoeven
     

13 Sep, 2016

1 commit


15 Aug, 2016

1 commit

  • spidev.h uses _IOC_SIZEBITS directly. musl libc does not provide this macro
    unless linux/ioctl.h is included explicitly. Fixes build failures like:

    In file included from .../host/usr/arm-buildroot-linux-musleabihf/sysroot/usr/include/sys/ioctl.h:7:0,
    from .../build/spidev_test-v3.15/spidev_test.c:20:
    .../build/spidev_test-v3.15/spidev_test.c: In function ‘transfer’:
    .../build/spidev_test-v3.15/spidev_test.c:75:18: error: ‘_IOC_SIZEBITS’ undeclared (first use in this function)
    ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
    ^

    Signed-off-by: Baruch Siach
    Signed-off-by: Mark Brown

    Baruch Siach
     

09 Dec, 2015

1 commit


30 Nov, 2015

1 commit


23 Nov, 2015

6 commits