1. 30 May, 2019 2 commits
  2. 21 May, 2019 1 commit
  3. 15 May, 2019 1 commit
  4. 26 Feb, 2019 1 commit
  5. 12 Dec, 2018 1 commit
  6. 23 Nov, 2018 1 commit
  7. 17 May, 2018 1 commit
  8. 02 Nov, 2017 1 commit
    • Greg Kroah-Hartman's avatar
      License cleanup: add SPDX GPL-2.0 license identifier to files with no license · b2441318
      Greg Kroah-Hartman authored
      
      
      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 <5
         lines).
      
      All documentation files were explicitly excluded.
      
      The following heuristics were used to determine which SPDX license
      identifiers to apply.
      
       - when both scanners couldn't find any license traces, file was
         considered to have no license information in it, and the top level
         COPYING file license applied.
      
         For non */uapi/* files that summary was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0                                              11139
      
         and resulted in the first patch in this series.
      
         If that file was a */uapi/* path one, it was "GPL-2.0 WITH
         Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0 WITH Linux-syscall-note                        930
      
         and resulted in the second patch in this series.
      
       - if a file had some form of licensing information in it, and was one
         of the */uapi/* ones, it was denoted with the Linux-syscall-note if
         any GPL family license was found in the file or had no licensing in
         it (per prior point).  Results summary:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|------
         GPL-2.0 WITH Linux-syscall-note                       270
         GPL-2.0+ WITH Linux-syscall-note                      169
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
         LGPL-2.1+ WITH Linux-syscall-note                      15
         GPL-1.0+ WITH Linux-syscall-note                       14
         ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
         LGPL-2.0+ WITH Linux-syscall-note                       4
         LGPL-2.1 WITH Linux-syscall-note                        3
         ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
         ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1
      
         and that resulted in the third patch in this series.
      
       - when the two scanners agreed on the detected license(s), that became
         the concluded license(s).
      
       - when there was disagreement between the two scanners (one detected a
         license but the other didn't, or they both detected different
         licenses) a manual inspection of the file occurred.
      
       - In most cases a manual inspection of the information in the file
         resulted in a clear resolution of the license that should apply (and
         which scanner probably needed to revisit its heuristics).
      
       - When it was not immediately clear, the license identifier was
         confirmed with lawyers working with the Linux Foundation.
      
       - If there was any question as to the appropriate license identifier,
         the file was flagged for further research and to be revisited later
         in time.
      
      In total, over 70 hours of logged manual review was done on the
      spreadsheet to determine the SPDX license identifiers to apply to the
      source files by Kate, Philippe, Thomas and, in some cases, confirmation
      by lawyers working with the Linux Foundation.
      
      Kate also obtained a third independent scan of the 4.13 code base from
      FOSSology, and compared selected files where the other two scanners
      disagreed against that SPDX file, to see if there was new insights.  The
      Windriver scanner is based on an older version of FOSSology in part, so
      they are related.
      
      Thomas did random spot checks in about 500 files from the spreadsheets
      for the uapi headers and agreed with SPDX license identifier in the
      files he inspected. For the non-uapi files Thomas did random spot checks
      in about 15000 files.
      
      In initial set of patches against 4.14-rc6, 3 files were found to have
      copy/paste license identifier errors, and have been fixed to reflect the
      correct identifier.
      
      Additionally Philippe spent 10 hours this week doing a detailed manual
      inspection and review of the 12,461 patched files from the initial patch
      version early this week with:
       - a full scancode scan run, collecting the matched texts, detected
         license ids and scores
       - reviewing anything where there was a license detected (about 500+
         files) to ensure that the applied SPDX license was correct
       - reviewing anything where there was no detection but the patch license
         was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
         SPDX license was correct
      
      This produced a worksheet with 20 files needing minor correction.  This
      worksheet was then exported into 3 different .csv files for the
      different types of files to be modified.
      
      These .csv files were then reviewed by Greg.  Thomas wrote a script to
      parse the csv files and add the proper SPDX tag to the file, in the
      format that the file expected.  This script was further refined by Greg
      based on the output to detect more types of files automatically and to
      distinguish between header and source .c files (which need different
      comment types.)  Finally Greg ran the script using the .csv files to
      generate the patches.
      Reviewed-by: default avatarKate Stewart <kstewart@linuxfoundation.org>
      Reviewed-by: default avatarPhilippe Ombredanne <pombredanne@nexb.com>
      Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      b2441318
  9. 30 Oct, 2017 2 commits
    • Linus Walleij's avatar
      i2c: gpio: Augment all boardfiles to use open drain · 4d0ce62c
      Linus Walleij authored
      
      
      We now handle the open drain mode internally in the I2C GPIO
      driver, but we will get warnings from the gpiolib that we
      override the default mode of the line so it becomes open
      drain.
      
      We can fix all in-kernel users by simply passing the right
      flag along in the descriptor table, and we already touched
      all of these files in the series so let's just tidy it up.
      
      Cc: Steven Miao <realmz6@gmail.com>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Acked-by: default avatarOlof Johansson <olof@lixom.net>
      Acked-by: default avatarLee Jones <lee.jones@linaro.org>
      Acked-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
      Acked-by: default avatarRalf Baechle <ralf@linux-mips.org>
      Acked-by: default avatarWu, Aaron <Aaron.Wu@analog.com>
      Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
      Tested-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      4d0ce62c
    • Linus Walleij's avatar
      i2c: gpio: Convert to use descriptors · b2e63555
      Linus Walleij authored
      
      
      This converts the GPIO-based I2C-driver to using GPIO
      descriptors instead of the old global numberspace-based
      GPIO interface. We:
      
      - Convert the driver to unconditionally grab two GPIOs
        from the device by index 0 (SDA) and 1 (SCL) which
        will work fine with device tree and descriptor tables.
        The existing device trees will continue to work just
        like before, but without any roundtrip through the
        global numberspace.
      
      - Brutally convert all boardfiles still passing global
        GPIOs by registering descriptor tables associated with
        the devices instead so this driver does not need to keep
        supporting passing any GPIO numbers as platform data.
      
      There is no stepwise approach as elegant as this, I
      strongly prefer this big hammer over any antsteps for this
      conversion. This way the old GPIO numbers go away and
      NEVER COME BACK.
      
      Special conversion for the different boards utilizing
      I2C-GPIO:
      
      - EP93xx (arch/arm/mach-ep93xx): pretty straight forward as
        all boards were using the same two GPIO lines, just define
        these two in a lookup table for "i2c-gpio" and register
        these along with the device. None of them define any
        other platform data so just pass NULL as platform data.
        This platform selects GPIOLIB so all should be smooth.
        The pins appear on a gpiochip for bank "G" as pins 1 (SDA)
        and 0 (SCL).
      
      - IXP4 (arch/arm/mach-ixp4): descriptor tables have to
        be registered for each board separately. They all use
        "IXP4XX_GPIO_CHIP" so it is pretty straight forward.
        Most board define no other platform data than SCL/SDA
        so they can drop the #include of <linux/i2c-gpio.h> and
        assign NULL to platform data.
      
        The "goramo_mlr" (Goramo Multilink Router) board is a bit
        worrisome: it implements its own I2C bit-banging in the
        board file, and optionally registers an I2C serial port,
        but claims the same GPIO lines for itself in the board file.
        This is not going to work: there will be competition for the
        GPIO lines, so delete the optional extra I2C bus instead, no
        I2C devices are registered on it anyway, there are just hints
        that it may contain an EEPROM that may be accessed from
        userspace. This needs to be fixed up properly by the serial
        clock using I2C emulation so drop a note in the code.
      
      - KS8695 board acs5k (arch/arm/mach-ks8695/board-acs5.c)
        has some platform data in addition to the pins so it needs to
        be kept around sans GPIO lines. Its GPIO chip is named
        "KS8695" and the arch selects GPIOLIB.
      
      - PXA boards (arch/arm/mach-pxa/*) use some of the platform
        data so it needs to be preserved here. The viper board even
        registers two GPIO I2Cs. The gpiochip is named "gpio-pxa" and
        the arch selects GPIOLIB.
      
      - SA1100 Simpad (arch/arm/mach-sa1100/simpad.c) defines a GPIO
        I2C bus, and the arch selects GPIOLIB.
      
      - Blackfin boards (arch/blackfin/bf533 etc) for these I assume
        their I2C GPIOs refer to the local gpiochip defined in
        arch/blackfin/kernel/bfin_gpio.c names "BFIN-GPIO".
        The arch selects GPIOLIB. The boards get spiked with
        IF_ENABLED(I2C_GPIO) but that is a side effect of it
        being like that already (I would just have Kconfig select
        I2C_GPIO and get rid of them all.) I also delete any
        platform data set to 0 as it will get that value anyway
        from static declartions of platform data.
      
      - The MIPS selects GPIOLIB and the Alchemy machine is using
        two local GPIO chips, one of them has a GPIO I2C. We need
        to adjust the local offset from the global number space here.
        The ATH79 has a proper GPIO driver in drivers/gpio/gpio-ath79.c
        and AFAICT the chip is named "ath79-gpio" and the PB44
        PCF857x expander spawns from this on GPIO 1 and 0. The latter
        board only use the platform data to specify pins so it can be
        cut altogether after this.
      
      - The MFD Silicon Motion SM501 is a special case. It dynamically
        spawns an I2C bus off the MFD using sm501_create_subdev().
        We use an approach to dynamically create a machine descriptor
        table and attach this to the "SM501-LOW" or "SM501-HIGH"
        gpiochip. We use chip-local offsets to grab the right lines.
        We can get rid of two local static inline helpers as part
        of this refactoring.
      
      Cc: Steven Miao <realmz6@gmail.com>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: Guenter Roeck <linux@roeck-us.net>
      Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
      Cc: Magnus Damm <magnus.damm@gmail.com>
      Cc: Ben Dooks <ben.dooks@codethink.co.uk>
      Cc: Heiko Schocher <hs@denx.de>
      Acked-by: default avatarWu, Aaron <Aaron.Wu@analog.com>
      Acked-by: default avatarOlof Johansson <olof@lixom.net>
      Acked-by: default avatarLee Jones <lee.jones@linaro.org>
      Acked-by: default avatarRalf Baechle <ralf@linux-mips.org>
      Tested-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      b2e63555
  10. 26 Feb, 2016 1 commit
    • Arnd Bergmann's avatar
      ARM: ks8695: fix __initdata annotation · 6ad7313b
      Arnd Bergmann authored
      
      
      Clang complains about the __initdata section attribute being in the
      wrong place in two files of ks8695:
      
      arch/arm/mach-ks8695/cpu.c:37:31: error: '__section__' attribute only applies to functions and global variables
      arch/arm/mach-ks8695/board-og.c:83:31: error: '__section__' attribute only applies to functions and global variables
      
      This moves the attribute to the correct place.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Acked-by: default avatarGreg Ungerer <gerg@uclinux.org>
      6ad7313b
  11. 22 Feb, 2016 1 commit
    • Arnd Bergmann's avatar
      ARM: 8532/1: uncompress: mark putc as inline · 4d2b7d4c
      Arnd Bergmann authored
      
      
      When CONFIG_DEBUG_ICEDCC is set, we don't use the platform
      specific putc() function, but use icedcc_putc() instead, so
      putc is unused and causes a compile time warning:
      
      In file included from ../arch/arm/boot/compressed/misc.c:28:0:
      arch/arm/mach-rpc/include/mach/uncompress.h:79:13: warning: 'putc' defined but not used [-Wunused-function]
      arch/arm/mach-w90x900/include/mach/uncompress.h:30:13: warning: 'putc' defined but not used [-Wunused-function]
      
      On most platforms, this does not happen, because putc is defined
      as 'static inline' so the compiler will automatically drop it
      when it's unused.
      
      This changes the remaining seven platforms to behave the same way.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      4d2b7d4c
  12. 01 Dec, 2015 1 commit
  13. 28 Jul, 2015 1 commit
    • Rob Herring's avatar
      ARM: kill off set_irq_flags usage · e8d36d5d
      Rob Herring authored
      
      
      set_irq_flags is ARM specific with custom flags which have genirq
      equivalents. Convert drivers to use the genirq interfaces directly, so we
      can kill off set_irq_flags. The translation of flags is as follows:
      
      IRQF_VALID -> !IRQ_NOREQUEST
      IRQF_PROBE -> !IRQ_NOPROBE
      IRQF_NOAUTOEN -> IRQ_NOAUTOEN
      
      For IRQs managed by an irqdomain, the irqdomain core code handles clearing
      and setting IRQ_NOREQUEST already, so there is no need to do this in
      .map() functions and we can simply remove the set_irq_flags calls. Some
      users also modify IRQ_NOPROBE and this has been maintained although it
      is not clear that is really needed. There appears to be a great deal of
      blind copy and paste of this code.
      Signed-off-by: default avatarRob Herring <robh@kernel.org>
      Cc: Russell King <linux@arm.linux.org.uk>
      Cc: Sekhar Nori <nsekhar@ti.com>
      Cc: Kevin Hilman <khilman@deeprootsystems.com>
      Cc: Jason Cooper <jason@lakedaemon.net>
      Cc: Andrew Lunn <andrew@lunn.ch>
      Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
      Cc: Gregory Clement <gregory.clement@free-electrons.com>
      Acked-by: default avatarHans Ulli Kroll <ulli.kroll@googlemail.com>
      Acked-by: default avatarShawn Guo <shawnguo@kernel.org>
      Cc: Sascha Hauer <kernel@pengutronix.de>
      Cc: Imre Kaloz <kaloz@openwrt.org>
      Acked-by: default avatarKrzysztof Halasa <khalasa@piap.pl>
      Cc: Greg Ungerer <gerg@uclinux.org>
      Cc: Roland Stigge <stigge@antcom.de>
      Cc: Tony Lindgren <tony@atomide.com>
      Cc: Daniel Mack <daniel@zonque.org>
      Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
      Cc: Robert Jarzmik <robert.jarzmik@free.fr>
      Cc: Simtec Linux Team <linux@simtec.co.uk>
      Cc: Kukjin Kim <kgene@kernel.org>
      Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
      Acked-by: default avatarWan ZongShun <mcuos.com@gmail.com>
      Cc: linux-arm-kernel@lists.infradead.org
      Cc: linux-omap@vger.kernel.org
      Cc: linux-samsung-soc@vger.kernel.org
      Tested-by: default avatarKevin Hilman <khilman@linaro.org>
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      e8d36d5d
  14. 17 Jul, 2015 1 commit
  15. 14 May, 2015 1 commit
  16. 30 Jan, 2015 1 commit
  17. 21 Jan, 2015 1 commit
  18. 02 Oct, 2014 1 commit
  19. 29 Jul, 2014 1 commit
    • Uwe Kleine-König's avatar
      ARM: 8113/1: remove remaining definitions of PLAT_PHYS_OFFSET from <mach/memory.h> · c6f54a9b
      Uwe Kleine-König authored
      
      
      The platforms selecting NEED_MACH_MEMORY_H defined the start address of
      their physical memory in the respective <mach/memory.h>. With
      ARM_PATCH_PHYS_VIRT=y (which is quite common today) this is useless
      though because the definition isn't used but determined dynamically.
      
      So remove the definitions from all <mach/memory.h> and provide the
      Kconfig symbol PHYS_OFFSET with the respective defaults in case
      ARM_PATCH_PHYS_VIRT isn't enabled.
      
      This allows to drop the dependency of PHYS_OFFSET on !NEED_MACH_MEMORY_H
      which prevents compiling an integrator nommu-kernel.
      (CONFIG_PAGE_OFFSET which has "default PHYS_OFFSET if !MMU" expanded to
      "0x" because CONFIG_PHYS_OFFSET doesn't exist as INTEGRATOR selects
      NEED_MACH_MEMORY_H.)
      Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      c6f54a9b
  20. 21 Mar, 2014 1 commit
  21. 12 Mar, 2014 1 commit
  22. 20 Dec, 2013 1 commit
  23. 03 Dec, 2013 1 commit
  24. 29 Aug, 2013 1 commit
  25. 09 Jul, 2013 1 commit
  26. 11 Jan, 2013 1 commit
  27. 03 Jan, 2013 1 commit
    • Greg Kroah-Hartman's avatar
      ARM: drivers: remove __dev* attributes. · 351a102d
      Greg Kroah-Hartman authored
      
      
      CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
      markings need to be removed.
      
      This change removes the use of __devinit, __devexit_p, __devinitdata,
      and __devexit from these drivers.
      
      Based on patches originally written by Bill Pemberton, but redone by me
      in order to handle some of the coding style issues better, by hand.
      
      Cc: Bill Pemberton <wfp5p@virginia.edu>
      Cc: Russell King <linux@arm.linux.org.uk>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      351a102d
  28. 24 Dec, 2012 1 commit
  29. 07 Oct, 2012 1 commit
    • Arnd Bergmann's avatar
      ARM: ks8695: __arch_virt_to_dma type handling · 113f7ae5
      Arnd Bergmann authored
      
      
      __arch_virt_to_dma expects a virtual address pointer, but
      the ks8695 implementation of this macro treats it as an
      integer. Adding a type cast avoids hundreds of identical
      warning messages.
      
      Without this patch, building acs5k_defconfig results in:
      
      arch/arm/include/asm/dma-mapping.h: In function 'virt_to_dma':
      arch/arm/include/asm/dma-mapping.h:60:2: warning: passing argument 1 of '__virt_to_phys' makes integer from pointer without a cast [enabled by default]
      arch/arm/include/asm/memory.h:172:60: note: expected 'long unsigned int' but argument is of type 'void *'
      In file included from include/linux/dma-mapping.h:73:0,
                       from include/linux/skbuff.h:33,
                       from security/commoncap.c:21:
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Cc: Krzysztof Halasa <khc@pm.waw.pl>
      Cc: Daniel Silverstone <dsilvers@simtec.co.uk>
      Cc: Ben Dooks <ben-linux@fluff.org>
      113f7ae5
  30. 19 Sep, 2012 1 commit
  31. 08 Sep, 2012 2 commits
  32. 05 Sep, 2012 4 commits
  33. 01 Aug, 2012 1 commit
  34. 13 May, 2012 1 commit