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2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
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: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-18staging: sm750fb: fix length of lines, function calls and declarationMatej Dujava1-22/+11
This patch breaks lines that are longer than 80 characters and joins together those, that are too short and can be placed at one. Function calls and declarations are updated to fit kernel code style. Signed-off-by: Matej Dujava <mdujava@kocurkovo.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-09staging: sm750fb: Removed unnecessary parentheses.Varsha Rao1-1/+1
Removed parentheses on the right hand side of assignment, as they are not required. The following coccinelle script was used to fix this issue: @@ local idexpression id; expression e; @@ id = -( e -) Signed-off-by: Varsha Rao <rvarsha016@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-09staging: sm750fb: Replace POKE32 and PEEK32 by inline functionsMatthieu Simon1-19/+19
POKE32 and PEEK32 have been replaced by inlined functions poke32 and peek32. Having inline functions instead of macros help to get the correct type-checking and avoid the possible precedence issues reported by checkpatch. Signed-off-by: Matthieu Simon <gmatthsim@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-10staging: sm750fb: prefix global identifiersArnd Bergmann1-2/+2
Renaming some symbols inside this driver caused a conflict with an existing function, which in turn results in a link error: drivers/staging/sm750fb/sm750fb.o: In function `enable_dma': ddk750_hwi2c.c:(.text.enable_dma+0x0): multiple definition of `enable_dma' This adds a sm750_ prefix to each global symbol in the sm750fb driver that does not already have one. I manually looked for the symbols and then converted the driver using for i in calc_pll_value format_pll_reg set_power_mode set_current_gate \ enable_2d_engine enable_dma enable_gpio enable_i2c hw_set2dformat \ hw_de_init hw_fillrect hw_copyarea hw_imageblit hw_cursor_enable \ hw_cursor_disable hw_cursor_setSize hw_cursor_setPos \ hw_cursor_setColor hw_cursor_setData hw_cursor_setData2 ; do sed -i "s:\<$i\>:sm750_$i:" drivers/staging/sm750fb/*.[ch] done Fixes: 03140dabf584 ("staging: sm750fb: Replace functions CamelCase naming with underscores.") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-30staging: sm750fb: Replace functions CamelCase naming with underscores.Elise Lennion1-2/+2
Replace CamelCase function names with underscores to comply with the standard kernel coding style. Signed-off-by: Elise Lennion <elise.lennion@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-25staging: sm750fb: restructure multi-line comments to follow CodingStyleEric S. Stone1-3/+6
Eliminates all checkpatch.pl BLOCK_COMMENT_STYLE warnings in sm750fb, and coincidentally eliminates some line-length (80) warnings. Signed-off-by: Eric S. Stone <esstone@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-16staging: sm750fb: Merge ddk750_help.* into ddk750_chip.*.Elise Lennion1-1/+1
The file ddk750_help.c contained only one function declaration, so it was merged into ddk750_chip.c to simplify the driver. Also, ddk750_help.h was merged into ddk750_chip.h to keep consistency. With these changes a few global variables are removed and the function ddk750_set_mmio is rewritten, so its purpose in the code is clearer. Signed-off-by: Elise Lennion <elise.lennion@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-02staging: sm750fb: conform to block comment styleElizabeth Ferdman1-1/+1
Fix 2 checkpatch errors: -Block comments use * on subsequent lines, -Block comments use a trailing */ on a separate line to conform to block commenting style. Signed-off-by: Elizabeth Ferdman <gnudevliz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: sm750fb: Remove parentheses from return argumentsAmitoj Kaur Chawla1-2/+2
Remove unnecessary parentheses from return arguments. The Coccinelle semantic patch that makes this change is as follows: // <smpl> @@ identifier i; constant c; @@ return - ( \(i\|-i\|i(...)\|c\) - ) ; // </smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-11staging: sm750fb: use BIT macro for I2C_STATUS fieldsMike Rapoport1-3/+1
Replace complex definition of I2C_STATUS register fields with BIT() macro and use open-coded implementation for register manipulation Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-11staging: sm750fb: use BIT macro for I2C_CTRL fieldsMike Rapoport1-12/+7
Replace complex definition of I2C_CTRL register fields with BIT() macro and use open-coded implementation for register manipulation Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07staging: sm750fb, fix typosMatej Vasek1-2/+2
The code contained typos like "structur", "fointers", etc. Fix that. No code change, only comments. Signed-off-by: Matej Vasek <xvasek1@fi.muni.cz> Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Cc: Teddy Wang <teddy.wang@siliconmotion.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: <linux-fbdev@vger.kernel.org> Cc: <devel@driverdev.osuosl.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07staging: sm750fb: use BIT macro for GPIO_MUX single-bit fieldsMike Rapoport1-4/+3
Replace complex definition of GPIO_MUX register fields with BIT() macro and use open-coded implementation for register manipulations. Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: ddk750_*i2c: shorten lines to under 80 charactersMike Rapoport1-5/+14
Fix some checkpatch warnings about long lines Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: ddk750_*i2c: remove multiple blank linesMike Rapoport1-16/+0
Fix the checkpatch warning about multiple blank lines Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: ddk750_hwi2c: reduce amount of CamelCaseMike Rapoport1-18/+18
Rename camel case variables deviceAddress, pBuffer and totalBytes to addr, buf and total_bytes respectively in sm750_hw_i2c_{read,write}_data functions. Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: hw_i2c_{read,write}: rename CamelCase variablesMike Rapoport1-8/+8
Rename longCamelCase variables deviceAddress and registerIndex to shorter addr and reg Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: ddk750_hw_i2c: rename busSpeedModeMike Rapoport1-2/+2
rename CamelCase parameter in sm750_hw_i2c_init() Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: ddk750_hwi2c: rename CamelCase static functionsMike Rapoport1-8/+8
Fix the checkpatch warning about CamelCase. Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: rename hwI2CWriteReg to sm750_hw_i2c_write_regMike Rapoport1-1/+1
Fix the checkpatch warning about CamelCase Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: rename hwI2CReadReg to sm750_hw_i2c_read_regMike Rapoport1-1/+1
Fix the checkpatch warning about CamelCase Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: rename hwI2CClose to sm750_hw_i2c_closeMike Rapoport1-1/+1
Fix the checkpatch warning about CamelCase Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-14staging: sm750fb: rename hwI2CInit to sm750_hw_i2c_initMike Rapoport1-1/+1
Fix the checkpatch warning about CamelCase Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-14staging: sm750fb: fix brace placementJuston Li1-4/+2
Fix brace placement errors caught by checkpatch.pl ERROR: that open brace { should be on the previous line Signed-off-by: Juston Li <juston.h.li@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-14staging: sm750fb: use tabs for indentationJuston Li1-123/+123
Replace spaces with tabs for indentation to fix the checkpatch.pl error ERROR: code indent should use tabs where possible WARNING: please, no spaces at the start of a line Signed-off-by: Juston Li <juston.h.li@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26staging: sm750fb: Make internal functions staticLorenzo Stoakes1-3/+3
This patch declares externally unavailable functions static. This fixes the following sparse warnings:- drivers/staging/sm750fb/ddk750_hwi2c.c:63:6: warning: symbol 'hwI2CWaitTXDone' was not declared. Should it be static? drivers/staging/sm750fb/ddk750_hwi2c.c:93:14: warning: symbol 'hwI2CWriteData' was not declared. Should it be static? drivers/staging/sm750fb/ddk750_hwi2c.c:160:14: warning: symbol 'hwI2CReadData' was not declared. Should it be static? Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-06staging: sm750fb: add sm750 to stagingSudip Mukherjee1-0/+271
sm750 of Silicon Motion is pci-e display controller device and has features like dual display and 2D acceleration. This patch adds the driver to staging. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>