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2021-08-18staging: rts5208: Fix get_ms_information() heap buffer sizeKees Cook1-7/+3
Fix buf allocation size (it needs to be 2 bytes larger). Found when __alloc_size() annotations were added to kmalloc() interfaces. In file included from ./include/linux/string.h:253, from ./include/linux/bitmap.h:10, from ./include/linux/cpumask.h:12, from ./arch/x86/include/asm/paravirt.h:17, from ./arch/x86/include/asm/irqflags.h:63, from ./include/linux/irqflags.h:16, from ./include/linux/rcupdate.h:26, from ./include/linux/rculist.h:11, from ./include/linux/pid.h:5, from ./include/linux/sched.h:14, from ./include/linux/blkdev.h:5, from drivers/staging/rts5208/rtsx_scsi.c:12: In function 'get_ms_information', inlined from 'ms_sp_cmnd' at drivers/staging/rts5208/rtsx_scsi.c:2877:12, inlined from 'rtsx_scsi_handler' at drivers/staging/rts5208/rtsx_scsi.c:3247:12: ./include/linux/fortify-string.h:54:29: warning: '__builtin_memcpy' forming offset [106, 107] is out of the bounds [0, 106] [-Warray-bounds] 54 | #define __underlying_memcpy __builtin_memcpy | ^ ./include/linux/fortify-string.h:417:2: note: in expansion of macro '__underlying_memcpy' 417 | __underlying_##op(p, q, __fortify_size); \ | ^~~~~~~~~~~~~ ./include/linux/fortify-string.h:463:26: note: in expansion of macro '__fortify_memcpy_chk' 463 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \ | ^~~~~~~~~~~~~~~~~~~~ drivers/staging/rts5208/rtsx_scsi.c:2851:3: note: in expansion of macro 'memcpy' 2851 | memcpy(buf + i, ms_card->raw_sys_info, 96); | ^~~~~~ Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-staging@lists.linux.dev Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210818044252.1533634-1-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-18staging: rts5208: remove redundant continue statementColin Ian King1-1/+0
The continue statement at the end of a for-loop has no effect, remove it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Addresses-Coverity: ("Continue has no effect") Link: https://lore.kernel.org/r/20210617120411.11612-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-12staging: rts5208: remove unnecessary ftrace-like loggingMitali Borkar1-2/+0
Removed unnecessary ftrace-like logging by simply deleting that statement as we have other modes of logging like ftrace. Reported by checkpatch. Signed-off-by: Mitali Borkar <mitaliborkar810@gmail.com> Link: https://lore.kernel.org/r/YHMy457UGosfeaC0@kali Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-13staging: rts5208: rtsx_transport.c: Fix lines ending with parenthesesSebastian Fuentes1-12/+12
Addresses checkpatch.pl check "Lines should not end with '('" Signed-off-by: Sebastian Fuentes <sefu1789@gmail.com> Link: https://lore.kernel.org/r/20200912060741.GA6274@ubuntu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-02staging: rts5208: clear alignment style issuesTomer Samara1-1/+1
Clear checkpatch alignment style issues in rtsx_transport.c. CHECK: Alignment should match open parenthesis Signed-off-by: Tomer Samara <tomersamara98@gmail.com> Link: https://lore.kernel.org/r/20200801210056.GA305272@tsnow Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21staging: rts5208: rtsx: Replace depracated MSI APISuraj Upadhyay1-6/+6
Replace depracated MSI IRQ enablers and disablers with pci_alloc_irq_vectors and pci_free_irq_vectors respectively. Compile tested. Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com> Link: https://lore.kernel.org/r/20200719143404.GA32519@blackclown Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-13staging: rts5208: Assign array_size() to a variableGustavo A. R. Silva1-6/+6
Assign array_size() to variable _size_ and use it in multiple places. This issue was found with the help of Coccinelle and, audited and fixed manually. Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200710183350.GA8376@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-01staging: rts5208/rtsx.c: use generic power managementVaibhav Gupta1-22/+8
Drivers should not use legacy power management as they have to manage power states and related operations, for the device, themselves. This driver was handling them with the help of PCI helper functions like pci_save/restore_state(), pci_enable/disable_device(), etc. With generic PM, all essentials will be handled by the PCI core. Driver needs to do only device-specific operations. The driver was also using pci_enable_wake(...,..., 0) to disable wake. Use device_wakeup_disable() instead. Compile-tested only. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> Link: https://lore.kernel.org/r/20200629082819.216405-4-vaibhavgupta40@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-25staging: rts5208: fix memleaks on error handling paths in probeEvgeny Novikov1-0/+1
rtsx_probe() allocates host, but does not free it on error handling paths. The patch adds missed scsi_host_put(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Evgeny Novikov <novikov@ispras.ru> Link: https://lore.kernel.org/r/20200623141230.7258-1-novikov@ispras.ru Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-18staging: rts5208: Use array_size() helper in vmalloc() and memset()Gustavo A. R. Silva1-3/+3
The vmalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). Also, while there, use array_size() in memset(). This issue was found with the help of Coccinelle and, audited and fixed manually. Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200616175543.GA28687@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19staging: rts5208: shorten long line in func callR Veera Kumar1-1/+2
Add a newline after the first argument. To respect the 80 character line limit. Found using checkpatch.pl. Signed-off-by: R Veera Kumar <vkor@vkten.in> Link: https://lore.kernel.org/r/20200319094835.GA2878@tulip.local Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29Merge tag 'staging-5.6-rc1' of ↵Linus Torvalds2-4/+5
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO updates from Greg KH: "Here is the big staging/iio driver patches for 5.6-rc1 Included in here are: - lots of new IIO drivers and updates for that subsystem - the usual huge quantity of minor cleanups for staging drivers - removal of the following staging drivers: - isdn/avm - isdn/gigaset - isdn/hysdn - octeon-usb - octeon ethernet Overall we deleted far more lines than we added, removing over 40k of old and obsolete driver code. All of these changes have been in linux-next for a while with no reported issues" * tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (353 commits) staging: most: usb: check for NULL device staging: next: configfs: fix release link staging: most: core: fix logging messages staging: most: core: remove container struct staging: most: remove struct device core driver staging: most: core: drop device reference staging: most: remove device from interface structure staging: comedi: drivers: fix spelling mistake "to" -> "too" staging: exfat: remove fs_func struct. staging: wilc1000: avoid mutex unlock without lock in wilc_wlan_handle_txq() staging: wilc1000: return zero on success and non-zero on function failure staging: axis-fifo: replace spinlock with mutex staging: wilc1000: remove unused code prior to throughput enhancement in SPI staging: wilc1000: added 'wilc_' prefix for 'struct assoc_resp' name staging: wilc1000: move firmware API struct's to separate header file staging: wilc1000: remove use of infinite loop conditions staging: kpc2000: rename variables with kpc namespace staging: vt6656: Remove memory buffer from vnt_download_firmware. staging: vt6656: Just check NEWRSR_DECRYPTOK for RX_FLAG_DECRYPTED. staging: vt6656: Use vnt_rx_tail struct for tail variables. ...
2020-01-10staging: rts5208: remove unneeded header include pathMasahiro Yamada1-2/+0
A header include path without $(srctree)/ is suspicous because it does not work with O= builds. I can build drivers/staging/rts5208/ without this include path. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Link: https://lore.kernel.org/r/20200104163710.21582-1-masahiroy@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-06remove ioremap_nocache and devm_ioremap_nocacheChristoph Hellwig1-1/+1
ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2019-12-10staging: rts5208: add missed pci_release_regionsChuhong Yuan1-2/+5
The driver forgets to call pci_release_regions() in probe failure and remove. Add the missed calls to fix it. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20191206075515.18581-1-hslester96@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-01staging: rts5208: Eliminate the use of Camel Case in file sd.hGabriela Bittencourt1-1/+1
Cleans up checks of "Avoid CamelCase" in file sd.h Even though the constant "DCM_LOW_FREQUENCY_MODE_SET" is defined and never used, it's useful to keep it because it documents the device. Signed-off-by: Gabriela Bittencourt <gabrielabittencourt00@gmail.com> Link: https://lore.kernel.org/r/20191031230243.3462-4-gabrielabittencourt00@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-01staging: rts5208: Eliminate the use of Camel Case in files xd.{h, c}Gabriela Bittencourt2-7/+7
Cleans up checks of "Avoid CamelCase" in files xd.{h,c} Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Gabriela Bittencourt <gabrielabittencourt00@gmail.com> Link: https://lore.kernel.org/r/20191031230243.3462-3-gabrielabittencourt00@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-01staging: rts5208: Eliminate the use of Camel Case in files ms.{h, c}Gabriela Bittencourt2-78/+78
Cleans up checks of "Avoid CamelCase" in files ms.{h,c} Signed-off-by: Gabriela Bittencourt <gabrielabittencourt00@gmail.com> Link: https://lore.kernel.org/r/20191031230243.3462-2-gabrielabittencourt00@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-29staging: rts5208: Fix alignment and a line ending with a '('Frank A. Cancio Bello2-3/+4
checkpatch messaages: CHECK:OPEN_ENDED_LINE: Lines should not end with a '(' CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis Signed-off-by: Frank A. Cancio Bello <frank@generalsoftwareinc.com> Link: https://lore.kernel.org/r/20191028161401.sjhp6qivm6huxpxm@linux-kernel-dev Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: rts5208: Fix checkpath warningP SAI PRASANTH1-3/+2
This patch fixes the following checkpath warning in the file drivers/staging/rts5208/rtsx_transport.c:546 WARNING: line over 80 characters + option = RTSX_SG_VALID | RTSX_SG_END | RTSX_SG_TRANS_DATA; Signed-off-by: P SAI PRASANTH <saip2823@gmail.com> Link: https://lore.kernel.org/r/20190831034926.GA17810@dell-inspiron Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: rts5208: Fixed checkpath warning.Prakhar Sinha1-4/+3
This patch solves the following checkpatch.pl's message in drivers/staging/rts5208/rtsx_transport.c:397. WARNING: line over 80 characters + option = RTSX_SG_VALID | RTSX_SG_END | RTSX_SG_TRANS_DATA; Signed-off-by: Prakhar Sinha <prakharsinha2808@gmail.com> Link: https://lore.kernel.org/r/20190830121656.GA2740@MeraComputer Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: rts5208: remove redundant sd30_mode checksColin Ian King1-18/+10
There are two hunks of code that check if sd30_mode is true however an earlier check in an outer code block on sd30_mode being false means that sd30_mode can never be true at these points so these checks are redundant. Remove the dead code. Addresses-Coverity: ("Logically dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20190830081047.13630-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-21staging: rts5208: remove redundant assignment to retvalColin Ian King1-1/+1
Variable retval is initialized to a value that is never read and it is re-assigned later. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20190818184649.13828-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-01staging: rts5208: Simplify boolean expression to improve code styleTobias Nießen1-4/+4
This bitwisen / boolean expression can be made more readable while reducing the line lengths at the same time. This commit uses the fact that a & (b | c) == (b | c) evaluates to true if and only if (a & b) && (a & c) is true. Since b and c are constants with relatively long names, using the second form makes the code much more readable and shorter. Signed-off-by: Tobias Nießen <tobias.niessen@stud.uni-hannover.de> Signed-off-by: Sabrina Gaube <sabrina-gaube@web.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-01staging: rts5208: Rewrite redundant if statement to improve code styleTobias Nießen1-12/+11
This commit uses the fact that if (a) { if (b) { ... } } can instead be written as if (a && b) { ... } without any change in behavior, allowing to decrease the indentation of the contained code block and thus reducing the average line length. Signed-off-by: Tobias Nießen <tobias.niessen@stud.uni-hannover.de> Signed-off-by: Sabrina Gaube <sabrina-gaube@web.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-20staging: rts5208: Remove function soft_reset_sd_card()Nishka Dasgupta2-7/+1
Remove function soft_reset_sd_card, as all it does is call reset_sd. Modify call sites of the former to call the latter instead. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-18staging: Add missing newline at end of fileGeert Uytterhoeven1-1/+1
"git diff" says: \ No newline at end of file after modifying the files. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30staging: rts5208: Remove negationsNishka Dasgupta1-10/+10
Previously return variable fake_para was being negated before return. For simplification, fake_para can be changed to valid_para, which is returned without negation (corresponding values swapped accordingly). Further, the function names check_sd_current_prior and check_sd_speed_prior can be changed to valid_sd_current_prior and valid_sd_speed_prior respectively for greater clarity on the purpose of the functions. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-03staging: add missing SPDX lines to Makefile filesGreg Kroah-Hartman1-0/+1
There are a few remaining drivers/staging/*/Makefile files that do not have SPDX identifiers in them. Add the correct GPL-2.0 identifier to them to make scanning tools happy. Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-03staging: add missing SPDX lines to Kconfig filesGreg Kroah-Hartman1-0/+1
There are a few remaining drivers/staging/*/Kconfig files that do not have SPDX identifiers in them. Add the correct GPL-2.0 identifier to them to make scanning tools happy. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-24staging: rts5208: correction in spellingPayal Kshirsagar1-1/+1
Correct misspelled word. Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-07Staging: rts5208: Fix error handling on rtsx_send_cmdAditya Pakki1-1/+6
In sd_execute_write_data, the rtsx_send_cmd could fail with ETIMEDOUT or EIO. The fix adds a check to handle these failures. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-07staging: rts5208: Add a check for ms_read_extra_dataAditya Pakki1-1/+4
In ms_copy_page, the function ms_read_extra_data may fail for many reasons. The fix adds a check similar to other invocation to return error upstream. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-28Merge tag 'staging-4.21-rc1' of ↵Linus Torvalds21-305/+62
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver updates from Greg KH: "Here is the big staging and iio driver pull request for 4.21-rc1. Lots and lots of tiny patches here, nothing major at all. Which is good, tiny cleanups is nice to see. No new huge driver removal or addition, this release cycle, although there are lots of good IIO driver changes, addtions, and movement from staging into the "real" part of the kernel, which is always great. Full details are in the shortlog, and all of these have been in linux-next for a while with no reported issues" * tag 'staging-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (553 commits) staging: mt7621-mmc: Correct spelling mistakes in comments staging: wilc1000: fix missing read_write setting when reading data mt7621-mmc: char * array declaration might be better as static const mt7621-mmc: return statement in void function unnecessary mt7621-mmc: Alignment should match open parenthesis mt7621-mmc: Removed unnecessary blank lines mt7621-mmc: Fix some coding style issues staging: android: ashmem: doc: Fix spelling staging: rtl8188eu: cleanup brace coding style issues staging: rtl8188eu: add spaces around '&' in rtw_mlme_ext.c staging: rtl8188eu: change return type of is_basicrate() to bool staging: rtl8188eu: simplify null array initializations staging: rtl8188eu: change order of declarations to improve readability staging: rtl8188eu: make some arrays static in rtw_mlme_ext.c staging: rtl8188eu: constify some arrays staging: rtl8188eu: convert unsigned char arrays to u8 staging: rtl8188eu: remove redundant declaration in rtw_mlme_ext.c staging: rtl8188eu: remove unused arrays WFD_OUI and WMM_INFO_OUI staging: rtl8188eu: remove unnecessary parentheses in rtw_mlme_ext.c staging: rtl8188eu: remove unnecessary comments in rtw_mlme_ext.c ...
2018-12-18scsi: flip the default on use_clusteringChristoph Hellwig1-6/+0
Most SCSI drivers want to enable "clustering", that is merging of segments so that they might span more than a single page. Remove the ENABLE_CLUSTERING define, and require drivers to explicitly set DISABLE_CLUSTERING to disable this feature. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-05Staging: rts5208: Capitalise preprocessor variable namesKim Bradley1-1/+1
Capitalise header preprocesser variable names (and all occurences) to remove checkpatch camelcase warnings. Signed-off-by: Kim Bradley <kim.jamie.bradley@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-05Staging: rts5208: Add SPDX license tagsKim Bradley21-304/+61
Add SPDX license tags to remove checkpatch SPDX warnings. Signed-off-by: Kim Bradley <kim.jamie.bradley@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-25staging: rts5208: Remove unnecessary braces {}Aymen Qader8-1459/+759
This patch fixes the checkpatch.pl warning "braces {} are not necessary" in the rts5208 driver. Mostly applies to single-line return/goto if blocks. Signed-off-by: Aymen Qader <qader.aymen@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-21staging: rts5208: xd.c fixed a brace coding style issueAli Aminian1-2/+1
Fixing a coding style issue Signed-off-by: Ali Aminian <aminian.opensource@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-06staging: rts5208: fix missing error check on call to rtsx_write_registerColin Ian King1-1/+1
Currently the check on error return from the call to rtsx_write_register is checking the error status from the previous call. Fix this by adding in the missing assignment of retval. Detected by CoverityScan, CID#709877 Fixes: fa590c222fba ("staging: rts5208: add support for rts5208 and rts5288") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28staging: rtsx: remove rtsx_trace() and related codeArnd Bergmann14-1344/+1
The driver has rather excessive amount of tracing code, which would be better done using ftrace. This is obviously not a main feature of the driver, and it should work just as well without it. Removing it saves over 1300 lines of code and likely makes the driver a bit faster by avoiding lots of calls into the timekeeping code. I came across this while cleaning up the last users of the deprecated getnstimeofday64() function, of which there is one in the now-removed get_current_time() function of the rtsx driver that was only used for tracing. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-17staging: rts5208: add error handling into rtsx_probeAnton Vasilyev1-12/+26
If rtsx_probe() fails to allocate dev->chip, then release_everything() will crash on uninitialized dev->cmnd_ready complete. Patch adds error handling into rtsx_probe. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-12treewide: Use array_size() in vzalloc()Kees Cook1-2/+2
The vzalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). This patch replaces cases of: vzalloc(a * b) with: vzalloc(array_size(a, b)) as well as handling cases of: vzalloc(a * b * c) with: vzalloc(array3_size(a, b, c)) This does, however, attempt to ignore constant size factors like: vzalloc(4 * 1024) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( vzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | vzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( vzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(char) * COUNT + COUNT , ...) | vzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( vzalloc( - sizeof(TYPE) * (COUNT_ID) + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_ID + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_CONST + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT_ID) + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_ID + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_CONST + array_size(COUNT_CONST, sizeof(THING)) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ vzalloc( - SIZE * COUNT + array_size(COUNT, SIZE) , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( vzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( vzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( vzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( vzalloc(C1 * C2 * C3, ...) | vzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants. @@ expression E1, E2; constant C1, C2; @@ ( vzalloc(C1 * C2, ...) | vzalloc( - E1 * E2 + array_size(E1, E2) , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12treewide: Use array_size() in vmalloc()Kees Cook2-2/+2
The vmalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). This patch replaces cases of: vmalloc(a * b) with: vmalloc(array_size(a, b)) as well as handling cases of: vmalloc(a * b * c) with: vmalloc(array3_size(a, b, c)) This does, however, attempt to ignore constant size factors like: vmalloc(4 * 1024) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( vmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | vmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( vmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(u8) * COUNT + COUNT , ...) | vmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | vmalloc( - sizeof(char) * COUNT + COUNT , ...) | vmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( vmalloc( - sizeof(TYPE) * (COUNT_ID) + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT_ID + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT_CONST + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vmalloc( - sizeof(THING) * (COUNT_ID) + array_size(COUNT_ID, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT_ID + array_size(COUNT_ID, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT_CONST + array_size(COUNT_CONST, sizeof(THING)) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ vmalloc( - SIZE * COUNT + array_size(COUNT, SIZE) , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( vmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( vmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( vmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( vmalloc(C1 * C2 * C3, ...) | vmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants. @@ expression E1, E2; constant C1, C2; @@ ( vmalloc(C1 * C2, ...) | vmalloc( - E1 * E2 + array_size(E1, E2) , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-03-01staging: rts5208: rename SG_END macroArnd Bergmann2-11/+11
A change to the generic scatterlist code caused a conflict with the rtsx card reader driver: In file included from drivers/staging/rts5208/rtsx.h:180, from drivers/staging/rts5208/rtsx.c:28: drivers/staging/rts5208/rtsx_chip.h:343: error: "SG_END" redefined [-Werror] This changes one instance of the driver to prefix SG_END and related constants. Fixes: 723fbf563a6a ("lib/scatterlist: Add SG_CHAIN and SG_END macros for LSB encodings") Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-01-22staging: rts5208: Fix "seg_no" calculation in reset_ms_card()Dan Carpenter1-1/+2
I get some static checker warnings like this: drivers/staging/rts5208/ms.c:2607 ms_build_l2p_tbl() error: buffer underflow 'ms_card->segment' (-1)-16 The problem is that we memset "ms_card" to zero at the start of the reset_ms_card() function. That means that when we try to calculate "ms_card->total_block / 512 - 1" then it's just always -1. The fix is to calculate "seg_no" before doing the memset(). This is a static checker fix, and I am not able to test it. My theory is that reset_ms_card() gets very little testing which is why this bug exists. Fixes: fa590c222fba ("staging: rts5208: add support for rts5208 and rts5288") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-10staging: rts5208: sd: fix misspelled constantSumit Pundir1-1/+1
Fixes the misspelled constant to 'SWITCH_NO_ERR'. Issue reported by checkpatch.pl Signed-off-by: Sumit Pundir <pundirsumit11@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-28staging: rts5208: remove rtsx_read_pci_cfg_byte()Sinan Kaya2-19/+0
Remove unused rtsx_read_pci_cfg_byte() function. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-13Merge tag 'staging-4.15-rc1' of ↵Linus Torvalds1-6/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO updates from Greg KH: "Here is the "big" staging and IIO driver update for 4.15-rc1. Lots and lots of little changes, almost all minor code cleanups as the Outreachy application process happened during this development cycle. Also happened was a lot of IIO driver activity, and the typec USB code moving out of staging to drivers/usb (same commits are in the USB tree on a persistent branch to not cause merge issues.) Overall, it's a wash, I think we added a few hundred more lines than removed, but really only a few thousand were modified at all. All of these have been in linux-next for a while. There might be a merge issue with Al's vfs tree in the pi433 driver (take his changes, they are always better), and the media tree with some of the odd atomisp cleanups (take the media tree's version)" * tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (507 commits) staging: lustre: add SPDX identifiers to all lustre files staging: greybus: Remove redundant license text staging: greybus: add SPDX identifiers to all greybus driver files staging: ccree: simplify ioread/iowrite staging: ccree: simplify registers access staging: ccree: simplify error handling logic staging: ccree: remove dead code staging: ccree: handle limiting of DMA masks staging: ccree: copy IV to DMAable memory staging: fbtft: remove redundant initialization of buf staging: sm750fb: Fix parameter mistake in poke32 staging: wilc1000: Fix bssid buffer offset in Txq staging: fbtft: fb_ssd1331: fix mirrored display staging: android: Fix checkpatch.pl error staging: greybus: loopback: convert loopback to use generic async operations staging: greybus: operation: add private data with get/set accessors staging: greybus: loopback: Fix iteration count on async path staging: greybus: loopback: Hold per-connection mutex across operations staging: greybus/loopback: use ktime_get() for time intervals staging: fsl-dpaa2/eth: Extra headroom in RX buffers ...
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>