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* parport: parport_serial: Add Brainboxes device IDs and geometryCameron Williams2023-12-151-0/+56
| | | | | | | | | | | | | Add device IDs for the Brainboxes UC-203, UC-257, UC-414, UC-475, IS-300/IS-500 and PX-263/PX-295 and define the relevant "geometry" for the cards. This patch requires part 1 of this series. Cc: <stable@vger.kernel.org> Signed-off-by: Cameron Williams <cang1@live.co.uk> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/AS4PR02MB7903A4094564BE28F1F926A6C4A6A@AS4PR02MB7903.eurprd02.prod.outlook.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: parport_serial: Add Brainboxes BAR detailsCameron Williams2023-12-151-0/+8
| | | | | | | | | | Add BAR/enum entries for Brainboxes serial/parallel cards. Cc: <stable@vger.kernel.org> Signed-off-by: Cameron Williams <cang1@live.co.uk> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/AS4PR02MB79035155C2D5C3333AE6FA52C4A6A@AS4PR02MB7903.eurprd02.prod.outlook.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 6.7-rc5 into char-misc-nextGreg Kroah-Hartman2023-12-111-0/+21
|\ | | | | | | | | | | | | We need the char/misc fixes in here as well for testing and to build off of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Add support for Brainboxes IX/UC/PX parallel cardsCameron Williams2023-12-071-0/+21
| | | | | | | | | | | | | | | | | | | | | | Adds support for Intashield IX-500/IX-550, UC-146/UC-157, PX-146/PX-157, PX-203 and PX-475 (LPT port) Cc: stable@vger.kernel.org Signed-off-by: Cameron Williams <cang1@live.co.uk> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/AS4PR02MB790389C130410BD864C8DCC9C4A6A@AS4PR02MB7903.eurprd02.prod.outlook.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: Save a few bytes of memoryChristophe JAILLET2023-12-071-4/+4
|/ | | | | | | | | | | | | | | Most of parport_register_dev_model() callers pass a 'name' that is a constant string. So kstrdup_const() can be used to save the duplication of this string when it is not needed. This saves a few bytes of memory. Use kfree_const() accordingly when this string is freed. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/0eba5f2ddd142ab0f577f67e482d1152b40ee720.1700860416.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: gsc: mark init function staticArnd Bergmann2023-11-101-1/+1
| | | | | | | | | | | This is only used locally, so mark it static to avoid a warning: drivers/parport/parport_gsc.c:395:5: error: no previous prototype for 'parport_gsc_init' [-Werror=missing-prototypes] Acked-by: Helge Deller <deller@gmx.de> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Helge Deller <deller@gmx.de>
* Merge tag 'char-misc-6.7-rc1' of ↵Linus Torvalds2023-11-032-63/+16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem changes for 6.7-rc1. Included in here are: - IIO subsystem driver updates and additions (largest part of this pull request) - FPGA subsystem driver updates - Counter subsystem driver updates - ICC subsystem driver updates - extcon subsystem driver updates - mei driver updates and additions - nvmem subsystem driver updates and additions - comedi subsystem dependency fixes - parport driver fixups - cdx subsystem driver and core updates - splice support for /dev/zero and /dev/full - other smaller driver cleanups All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (326 commits) cdx: add sysfs for subsystem, class and revision cdx: add sysfs for bus reset cdx: add support for bus enable and disable cdx: Register cdx bus as a device on cdx subsystem cdx: Create symbol namespaces for cdx subsystem cdx: Introduce lock to protect controller ops cdx: Remove cdx controller list from cdx bus system dts: ti: k3-am625-beagleplay: Add beaglecc1352 greybus: Add BeaglePlay Linux Driver dt-bindings: net: Add ti,cc1352p7 dt-bindings: eeprom: at24: allow NVMEM cells based on old syntax dt-bindings: nvmem: SID: allow NVMEM cells based on old syntax Revert "nvmem: add new config option" MAINTAINERS: coresight: Add missing Coresight files misc: pci_endpoint_test: Add deviceID for J721S2 PCIe EP device support firmware: xilinx: Move EXPORT_SYMBOL_GPL next to zynqmp_pm_feature definition uacce: make uacce_class constant ocxl: make ocxl_class constant cxl: make cxl_class constant misc: phantom: make phantom_class constant ...
| * parport: Drop even more unneeded NULL or 0 assignmentsAndy Shevchenko2023-10-211-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | kzalloc() gives us a zeroed memory, no need to explicitly assing 0 or NULL or similar to the members of the data structure that has been allocated with the above mentioned API. Note, the initializstion of full_list member is not needed anymore as list_add_tail will rewrite the contents of the prev and next pointers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231018145948.1367648-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Clean up resources correctly when parport_register_port() failsAndy Shevchenko2023-10-211-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The smatch warns about uncleaned resources in case the parport_register_port() fails: parport_register_port() warn: '&tmp->full_list' not removed from list This is indeed an issue introduced when converting code to use kasprintf(). However, the whole kasprintf() dance in this case is not needed as dev_set_name() can handle the formatted input and produces the same result. So, the solution is to delegate name forming to the dev_set_name() and make device_register() error path to deal with error handling (via put_device() call). Fixes: 8d8ae17eb0de ("parport: Use kasprintf() instead of fixed buffer formatting") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/202310180809.hepZB9k6-lkp@intel.com/ Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231018145948.1367648-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Drop unneeded NULL or 0 assignmentsAndy Shevchenko2023-10-181-4/+0
| | | | | | | | | | | | | | | | | | | | kzalloc() gives us a zeroed memory, no need to explicitly assing 0 or NULL or similar to the members of the data structure that has been allocated with the above mentioned API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231016133135.1203643-4-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Use list_for_each() helperAndy Shevchenko2023-10-181-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | Convert hard to read custom code to list_for_each(). No functional changes intended. Note, we may not use list_for_each_entry() as at the end of the list the iterator will point to an invalid entry and may not be dereferenced. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231016133135.1203643-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Use kasprintf() instead of fixed buffer formattingAndy Shevchenko2023-10-182-53/+15
| | | | | | | | | | | | | | | | | | Improve readability and maintainability by replacing a hardcoded string allocation and formatting by the use of the kasprintf() helper. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231016133135.1203643-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: Remove the now superfluous sentinel element from ctl_table arrayJoel Granados2023-10-111-17/+11
|/ | | | | | | | | | | | | | | | | | | | | | | | This commit comes at the tail end of a greater effort to remove the empty elements at the end of the ctl_table arrays (sentinels) which will reduce the overall build time size of the kernel and run time memory bloat by ~64 bytes per sentinel (further information Link : https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/) Remove the unneeded ctl_tables that were used to register intermediate parport directories; only the path is needed at this point. From parport_device_sysctl_table we removed: devices_root_dir, port_dir, parport_dir and dev_dir. From parport_default_sysctl_table we removed: default_dir, parport_dir and dev_dir. Reduce the size by one of the ctl_table arrays that were not removed Assign different sizes to the vars array in parport_sysctl_table depending on CONFIG_PARPORT_1284; this is necessary now that the sysctl register function uses ARRAY_SIZE to calculate the elements within. Remove the sentinel element from parport_sysctl_template, parport_device_sysctl_table and parport_default_sysctl_table. Signed-off-by: Joel Granados <j.granados@samsung.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* Merge tag 'tty-6.6-rc1' of ↵Linus Torvalds2023-09-011-0/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here is the big set of tty and serial driver changes for 6.6-rc1. Lots of cleanups in here this cycle, and some driver updates. Short summary is: - Jiri's continued work to make the tty code and apis be a bit more sane with regards to modern kernel coding style and types - cpm_uart driver updates - n_gsm updates and fixes - meson driver updates - sc16is7xx driver updates - 8250 driver updates for different hardware types - qcom-geni driver fixes - tegra serial driver change - stm32 driver updates - synclink_gt driver cleanups - tty structure size reduction All of these have been in linux-next this week with no reported issues. The last bit of cleanups from Jiri and the tty structure size reduction came in last week, a bit late but as they were just style changes and size reductions, I figured they should get into this merge cycle so that others can work on top of them with no merge conflicts" * tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits) tty: shrink the size of struct tty_struct by 40 bytes tty: n_tty: deduplicate copy code in n_tty_receive_buf_real_raw() tty: n_tty: extract ECHO_OP processing to a separate function tty: n_tty: unify counts to size_t tty: n_tty: use u8 for chars and flags tty: n_tty: simplify chars_in_buffer() tty: n_tty: remove unsigned char casts from character constants tty: n_tty: move newline handling to a separate function tty: n_tty: move canon handling to a separate function tty: n_tty: use MASK() for masking out size bits tty: n_tty: make n_tty_data::num_overrun unsigned tty: n_tty: use time_is_before_jiffies() in n_tty_receive_overrun() tty: n_tty: use 'num' for writes' counts tty: n_tty: use output character directly tty: n_tty: make flow of n_tty_receive_buf_common() a bool Revert "tty: serial: meson: Add a earlycon for the T7 SoC" Documentation: devices.txt: Fix minors for ttyCPM* Documentation: devices.txt: Remove ttySIOC* Documentation: devices.txt: Remove ttyIOC* serial: 8250_bcm7271: improve bcm7271 8250 port ...
| * Merge commit b320441c04c9 ("Merge tag 'tty-6.5-rc7' of ↵Greg Kroah-Hartman2023-08-202-31/+4
| |\ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty") into tty-next We need the serial-core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | parport_pc: add support for ASIX AX99100Jiaqing Zhao2023-07-301-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCI function 2 on ASIX AX99100 PCIe to Multi I/O Controller can be configured as a single-port parallel port controller. The subvendor id is 0x2000 when configured as parallel port. It supports IEEE-1284 EPP / ECP with its ECR on BAR1. Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230724083933.3173513-5-jiaqing.zhao@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge tag 'devicetree-header-cleanups-for-6.6' of ↵Linus Torvalds2023-08-301-1/+1
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree include cleanups from Rob Herring: "These are the remaining few clean-ups of DT related includes which didn't get applied to subsystem trees" * tag 'devicetree-header-cleanups-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: ipmi: Explicitly include correct DT includes tpm: Explicitly include correct DT includes lib/genalloc: Explicitly include correct DT includes parport: Explicitly include correct DT includes sbus: Explicitly include correct DT includes mux: Explicitly include correct DT includes macintosh: Explicitly include correct DT includes hte: Explicitly include correct DT includes EDAC: Explicitly include correct DT includes clocksource: Explicitly include correct DT includes sparc: Explicitly include correct DT includes riscv: Explicitly include correct DT includes
| * | parport: Explicitly include correct DT includesRob Herring2023-08-281-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it was merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230714175042.4065815-1-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
* / parport: gsc: remove DMA leftover codeArnd Bergmann2023-08-032-31/+4
|/ | | | | | | | | | | | | | | | This driver does not actually work with DMA mode, but still tries to call ISA DMA interface functions that are stubbed out on parisc, resulting in a W=1 build warning: drivers/parport/parport_gsc.c: In function 'parport_remove_chip': drivers/parport/parport_gsc.c:389:20: warning: suggest braces around empty body in an 'if' statement [-Wempty-body] 389 | free_dma(p->dma); Remove the corresponding code as a prerequisite for turning on -Wempty-body by default in all kernels. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Helge Deller <deller@gmx.de>
* Merge tag 'char-misc-6.5-rc1' of ↵Linus Torvalds2023-07-031-1/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull Char/Misc updates from Greg KH: "Here is the big set of char/misc and other driver subsystem updates for 6.5-rc1. Lots of different, tiny, stuff in here, from a range of smaller driver subsystems, including pulls from some substems directly: - IIO driver updates and additions - W1 driver updates and fixes (and a new maintainer!) - FPGA driver updates and fixes - Counter driver updates - Extcon driver updates - Interconnect driver updates - Coresight driver updates - mfd tree tag merge needed for other updates on top of that, lots of small driver updates as patches, including: - static const updates for class structures - nvmem driver updates - pcmcia driver fix - lots of other small driver updates and fixes All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (243 commits) bsr: fix build problem with bsr_class static cleanup comedi: make all 'class' structures const char: xillybus: make xillybus_class a static const structure xilinx_hwicap: make icap_class a static const structure virtio_console: make port class a static const structure ppdev: make ppdev_class a static const structure char: misc: make misc_class a static const structure /dev/mem: make mem_class a static const structure char: lp: make lp_class a static const structure dsp56k: make dsp56k_class a static const structure bsr: make bsr_class a static const structure oradax: make 'cl' a static const structure hwtracing: hisi_ptt: Fix potential sleep in atomic context hwtracing: hisi_ptt: Advertise PERF_PMU_CAP_NO_EXCLUDE for PTT PMU hwtracing: hisi_ptt: Export available filters through sysfs hwtracing: hisi_ptt: Add support for dynamically updating the filter list hwtracing: hisi_ptt: Factor out filter allocation and release operation samples: pfsm: add CC_CAN_LINK dependency misc: fastrpc: check return value of devm_kasprintf() coresight: dummy: Update type of mode parameter in dummy_{sink,source}_enable() ...
| * parport: PC style parport depends on HAS_IOPORTNiklas Schnelle2023-05-311-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. As PC style parport uses these functions we need to handle this dependency. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Link: https://lore.kernel.org/r/20230522105049.1467313-24-schnelle@linux.ibm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | sysctl: replace child with an enumerationJoel Granados2023-06-181-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is part of the effort to remove the empty element at the end of ctl_table structs. "child" was a deprecated elem in this struct and was being used to differentiate between two types of ctl_tables: "normal" and "permanently emtpy". What changed?: * Replace "child" with an enumeration that will have two values: the default (0) and the permanently empty (1). The latter is left at zero so when struct ctl_table is created with kzalloc or in a local context, it will have the zero value by default. We document the new enum with kdoc. * Remove the "empty child" check from sysctl_check_table * Remove count_subheaders function as there is no longer a need to calculate how many headers there are for every child * Remove the recursive call to unregister_sysctl_table as there is no need to traverse down the child tree any longer * Add a new SYSCTL_PERM_EMPTY_DIR binary flag * Remove the last remanence of child from partport/procfs.c Signed-off-by: Joel Granados <j.granados@samsung.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* | parport: plug a sysctl register leakJoel Granados2023-06-181-10/+12
| | | | | | | | | | | | | | | | | | | | parport registers two sysctl directories in the parport_proc_register function but only one of them was getting unregistered in parport_proc_unregister. Keep track of both sysctl table headers and handle them together when (un)registering. Signed-off-by: Joel Granados <j.granados@samsung.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* | parport: Removed sysctl related definesJoel Granados2023-05-231-7/+0
| | | | | | | | | | | | | | | | | | | | The partport driver used to rely on defines to include different directories in sysctl. Now that we have made the transition to register_sysctl from regsiter_sysctl_table, they are no longer needed. Signed-off-by: Joel Granados <j.granados@samsung.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* | parport: Remove register_sysctl_table from parport_default_proc_registerJoel Granados2023-05-231-17/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is part of the general push to deprecate register_sysctl_paths and register_sysctl_table. Simply change the full path "dev/parport/default" to point to an already existing set of table entries (vars). We also remove the unused elements from parport_default_table. To make sure the resulting directory structure did not change we made sure that `find /proc/sys/dev/ | sha1sum` was the same before and after the change. Signed-off-by: Joel Granados <j.granados@samsung.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* | parport: Remove register_sysctl_table from parport_device_proc_registerJoel Granados2023-05-231-24/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is part of the general push to deprecate register_sysctl_paths and register_sysctl_table. We use a temp allocation to include both port and device name in proc. Allocated mem is freed at the end. The unused parport_device_sysctl_template struct elements that are not used are removed. Signed-off-by: Joel Granados <j.granados@samsung.com> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/r/202305150948.pHgIh7Ql-lkp@intel.com/ Reported-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* | parport: Remove register_sysctl_table from parport_proc_registerJoel Granados2023-05-231-31/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is part of the general push to deprecate register_sysctl_paths and register_sysctl_table. Register dev/parport/PORTNAME and dev/parport/PORTNAME/devices. Temporary allocation for name is freed at the end of the function. Remove all the struct elements that are no longer used in the parport_device_sysctl_template struct. Add parport specific defines that hide the base path sizes. To make sure the resulting directory structure did not change we made sure that `find /proc/sys/dev/ | sha1sum` was the same before and after the change. Signed-off-by: Joel Granados <j.granados@samsung.com> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/r/202305150948.pHgIh7Ql-lkp@intel.com/ Reported-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* | parport: Move magic number "15" to a defineJoel Granados2023-05-231-1/+1
|/ | | | | | | | | | Put the size of a parport name behind a define so we can use it in other files. This is a preparation patch to be able to use this size in parport/procfs.c. Signed-off-by: Joel Granados <j.granados@samsung.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
* ata: parport_pc: add 16-bit and 8-bit fast EPP transfer flagsOndrej Zary2023-03-231-4/+16
| | | | | | | | | | PARPORT_EPP_FAST flag currently uses 32-bit I/O port access for data read/write (insl/outsl). Add PARPORT_EPP_FAST_16 and PARPORT_EPP_FAST_8 that use insw/outsw and insb/outsb (and PARPORT_EPP_FAST_32 as alias for PARPORT_EPP_FAST). Signed-off-by: Ondrej Zary <linux@zary.sk> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
* Merge tag 'char-misc-6.3-rc1' of ↵Linus Torvalds2023-02-241-39/+86
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver subsystem updates from Greg KH: "Here is the large set of driver changes for char/misc drivers and other smaller driver subsystems that flow through this git tree. Included in here are: - New IIO drivers and features and improvments in that subsystem - New hwtracing drivers and additions to that subsystem - lots of interconnect changes and new drivers as that subsystem seems under very active development recently. This required also merging in the icc subsystem changes through this tree. - FPGA driver updates - counter subsystem and driver updates - MHI driver updates - nvmem driver updates - documentation updates - Other smaller driver updates and fixes, full details in the shortlog All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits) scripts/tags.sh: fix incompatibility with PCRE2 firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries mei: lower the log level for non-fatal failed messages mei: bus: disallow driver match while dismantling device misc: vmw_balloon: fix memory leak with using debugfs_lookup() nvmem: stm32: fix OPTEE dependency dt-bindings: nvmem: qfprom: add IPQ8074 compatible nvmem: qcom-spmi-sdam: register at device init time nvmem: rave-sp-eeprm: fix kernel-doc bad line warning nvmem: stm32: detect bsec pta presence for STM32MP15x nvmem: stm32: add OP-TEE support for STM32MP13x nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of() nvmem: core: add nvmem_add_one_cell() nvmem: core: drop the removal of the cells in nvmem_add_cells() nvmem: core: move struct nvmem_cell_info to nvmem-provider.h nvmem: core: add an index parameter to the cell of: property: add #nvmem-cell-cells property of: property: make #.*-cells optional for simple props of: base: add of_parse_phandle_with_optional_args() net: add helper eth_addr_add() ...
| * parport_pc: Limit the number of PCI BAR pairs to 2Maciej W. Rozycki2023-01-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | Decrease the number of PCI BAR pair slots allocated for port subdrivers from 4 to 2 as none wants more than 2 at this time, reducing the memory footprint a little. No functional change. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-7-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Set up mode and ECR masks for Oxford Semiconductor devicesMaciej W. Rozycki2023-01-201-6/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No Oxford Semiconductor PCI or PCIe parallel port device supports the Parallel Port FIFO mode. All support the PS/2 Parallel Port mode and the Enhanced Parallel Port mode via the ECR register. The original 5V PCI OX16PCI954 device does not support the Extended Capabilities Port mode, the Test mode or the Configuration mode, but all the other OxSemi devices do, including in particular the 3.3V PCI OXmPCI954 device and the universal voltage PCI OXuPCI954 device. All the unsupported modes are marked reserved in the relevant datasheets. Accordingly enable the `base_hi' BAR for the 954 devices to enable PS2 and EPP mode support via the ECR register, however mask the COMPAT mode and, until we have a way to determine what chip variant it is that we poke at, also the ECP mode, and mask the COMPAT mode only for all the remaining OxSemi devices, fixing errors like: parport0: FIFO is stuck FIFO write timed out and a non-functional port when the Parallel Port FIFO mode is selected. Complementing the fix apply an ECR mask for all these devices, which are documented to only permit writing to the mode field of the ECR register with a bit pattern of 00001 required to be written to bits 4:0 on mode field writes. No nFault or service interrupts are implemented, which will therefore never have to be enabled, though bit 2 does report the FIFO threshold status to be polled for in the ECP mode where supported. We have a documented case of writing 1 to bit 2 causing a lock-up with at least one OX12PCI840 device (from old drivers/parport/ChangeLog): 2001-10-10 Tim Waugh <twaugh@redhat.com> * parport_pc.c: Support for OX12PCI840 PCI card (reported by mk@daveg.com). Lock-ups diagnosed by Ronnie Arosa (and now we just don't trust its ECR). which commit adbd321a17cc ("parport_pc: add base_hi BAR for oxsemi_840") must have broken and by applying an ECR mask here we prevent the lock-up from triggering. This could have been the reason for requiring 00001 to be written to bits 4:0 of ECR. Update the inline comment accordingly; it has come from Linux 2.4.12 back in 2001 and predates the introduction of OXmPCI954 and OXuPCI954 devices that do support ECP. References: [1] "OX16PCI954 Integrated Quad UART and PCI interface", Oxford Semiconductor Ltd., Data Sheet Revision 1.3, Feb. 1999, Chapter 9 "Bidirectional Parallel Port", pp. 53-55 [2] "OX16PCI952 Data Sheet, Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface", Oxford Semiconductor Ltd., DS_B008A_00, Datasheet rev 1.1, June 2001, Chapter 8 "Bi-directional Parallel Port", pp. 52-56 [3] "OXmPCI954 DATA SHEET Integrated High Performance Quad UARTs, 8-bit Local Bus/Parallel Port. 3.3v PCI/miniPCI interface.", Oxford Semiconductor Ltd., DS-0019, June 2005, Chapter 10 "Bidirectional Parallel Port", pp. 86-90 [4] "OXmPCI952 Data Sheet, Integrated High Performance Dual UARTs, 8-bit Local Bus/Parallel Port. 3.3v PCI/miniPCI interface.", Oxford Semiconductor Ltd., DS-0020, June 2005, Chapter 8 "Bidirectional Parallel Port", pp. 73-77 [5] "OX12PCI840 Integrated Parallel Port and PCI interface", Oxford Semiconductor Ltd., DS-0021, Jun 2005, Chapter 5 "Bi-directional Parallel Port", pp. 18-21 [6] "OXPCIe952 PCI Express Bridge to Dual Serial & Parallel Port", Oxford Semiconductor, Inc., DS-0046, Mar 06 08, Chapter "Parallel Port Function", pp. 59-62 [7] "OXPCIe840 PCI Express Bridge to Parallel Port", Oxford Semiconductor, Inc., DS-0049, Mar 06 08, Chapter "Parallel Port Function", pp. 15-18 [8] "OXuPCI954 Data Sheet, Integrated High Performance Quad UARTs, 8-bit Local Bus/Parallel Port, 3.3 V and 5 V (Universal Voltage) PCI Interface.", Oxford Semiconductor, Inc., DS-0058, 26 Jan 2009, Chapter 8 "Bidirectional Parallel Port", pp. 62-65 [9] "OXuPCI952 Data Sheet, Integrated High Performance Dual UARTs, 8-bit Local Bus/Parallel Port, 3.3 V and 5.0 V Universal Voltage PCI Interface.", Oxford Semiconductor, Inc., DS-0059, Sep 2007, Chapter 8 "Bidirectional Parallel Port", pp. 61-64 Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-6-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Add an ECR mask field for PCI devicesMaciej W. Rozycki2023-01-201-1/+6
| | | | | | | | | | | | | | | | | | | | Add a bitmask field specifying writable ECR bits for PCI devices and apply it via `__parport_pc_probe_port'. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-5-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Add a mode mask field for PCI devicesMaciej W. Rozycki2023-01-201-3/+7
| | | | | | | | | | | | | | | | | | | | Add a mode mask field for PCI devices and use `__parport_pc_probe_port' in place of `parport_pc_probe_port' to apply it. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-4-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Let chipset drivers mask ECR bits on writesMaciej W. Rozycki2023-01-201-17/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide an `ecr_writable' parameter to `__parport_pc_probe_port' so that callers can specify a mask of bits to modify on ECR writes. To avoid the need for separate bit set and bit clear masks always set bit 0 whenever a non-zero mask has been set, as all the currently known cases where a mask is required, that is Oxford Semiconductor devices, do require this bit to be set. If further cases are discovered where the bit is required to be clear, we can update code accordingly, but chances are very low as the bit is supposed to be read-only[1]. Skip ECR probing, which can be problematic as the Oxford Semiconductor OX12PCI840 part has been reported to lock up on setting bit 2, whenever a non-zero mask has been requested by a port subdriver, assuming that the ECR must be there if the subdriver has requested a specific way to access it. References: [1] "Extended Capabilities Port Protocol and ISA Interface Standard", Microsoft Corporation, Revision: 1.14, July 14, 1993, Table 14 "Extended Control Register" Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-3-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Let chipset drivers mask unsupported modesMaciej W. Rozycki2023-01-201-12/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename `parport_pc_probe_port' to `__parport_pc_probe_port' and add a `mode_mask' parameter so that callers can specify a mask of unsupported modes to exclude even if mode probing seems to indicate otherwise. Add a `parport_pc_probe_port' wrapper with an implicit mask of 0 for the current callers to use. No functional change at this point, but the configuration of data write handlers is now no longer intertwined with determination and reporting of available modes. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-2-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Remove stale `parport_pc_ecp_read_block_pio' referenceMaciej W. Rozycki2023-01-201-2/+0
| | | | | | | | | | | | | | | | | | | | | | Complement commit 991214386dee ("parport: remove unused dead code from lowlevel drivers") and remove a stale piece of commented-out code that refers to a function removed with said commit. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-1-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: remove ax88796 driverArnd Bergmann2023-01-163-430/+0
|/ | | | | | | | The s3c24xx bast platform was removed, so this driver has no users any more and can be removed as well. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* parport_pc: Avoid FIFO port location truncationMaciej W. Rozycki2022-11-091-1/+1
| | | | | | | | | | | | | | | | Match the data type of a temporary holding a reference to the FIFO port with the type of the original reference coming from `struct parport', avoiding data truncation with LP64 ports such as SPARC64 that refer to PCI port I/O locations via their corresponding MMIO addresses and will therefore have non-zero bits in the high 32-bit part of the reference. And in any case it is cleaner to have the data types matching here. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Link: https://lore.kernel.org/linux-pci/20220419033752.GA1101844@bhelgaas/ Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2209231912550.29493@angie.orcam.me.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: add support for Netmos device 9900Alexander Baehr2022-09-011-0/+4
| | | | | | | | | | The Netmos parallel port 9901 was already supported but the device 9900 was not. This patch adds the required settings for it and was successfully tested with the Netmos device 9900. Signed-off-by: Alexander Baehr <abaehr@osadl.org> Link: https://lore.kernel.org/r/20220806113334.264598686@osadl.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport_pc: Also enable driver for PCI systemsMaciej W. Rozycki2022-03-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nowadays PC-style parallel ports come in the form of PCI and PCIe option cards and there are some combined parallel/serial option cards as well that we handle in the parport subsystem. There is nothing in particular that would prevent them from being used in any system equipped with PCI or PCIe connectivity, except that we do not permit the PARPORT_PC config option to be selected for platforms for which ARCH_MIGHT_HAVE_PC_PARPORT has not been set for. The only PCI platforms that actually can't make use of PC-style parallel port hardware are those newer PCIe systems that have no support for I/O cycles in the host bridge, required by such parallel ports. Notably, this includes the s390 arch, which has port I/O accessors that cause compilation warnings (promoted to errors with `-Werror'), and there are other cases such as the POWER9 PHB4 device, though this one has variable port I/O accessors that depend on the particular system. Also it is not clear whether the serial port side of devices enabled by PARPORT_SERIAL uses port I/O or MMIO. Finally Super I/O solutions are always either ISA or platform devices. Make the PARPORT_PC option selectable also for PCI systems then, except for the s390 arch, however limit the availability of PARPORT_PC_SUPERIO to platforms that enable ARCH_MIGHT_HAVE_PC_PARPORT. Update platforms accordingly for the required <asm/parport.h> header. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2202141955550.34636@angie.orcam.me.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'for-5.15/parisc' of ↵Linus Torvalds2021-09-021-5/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc architecture updates from Helge Deller: - Fix a kernel crash when a signal is delivered to bad userspace stack - Fix fall-through warnings in math-emu code - Increase size of gcc stack frame check - Switch coding from 'pci_' to 'dma_' API - Make struct parisc_driver::remove() return void - Some parisc related Makefile changes - Minor cleanups, e.g. change to octal permissions, fix macro collisions, fix PMD_ORDER collision, replace spaces with tabs * tag 'for-5.15/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: math-emu: Fix fall-through warnings parisc: fix crash with signals and alloca parisc: Fix compile failure when building 64-bit kernel natively parisc: ccio-dma.c: Added tab instead of spaces parisc/parport_gsc: switch from 'pci_' to 'dma_' API parisc: move core-y in arch/parisc/Makefile to arch/parisc/Kbuild parisc: switch from 'pci_' to 'dma_' API parisc: Make struct parisc_driver::remove() return void parisc: remove unused arch/parisc/boot/install.sh and its phony target parisc: Rename PMD_ORDER to PMD_TABLE_ORDER parisc: math-emu: Avoid "fmt" macro collision parisc: Increase size of gcc stack frame check parisc: Replace symbolic permissions with octal permissions
| * parisc/parport_gsc: switch from 'pci_' to 'dma_' APIChristophe JAILLET2021-08-301-3/+2
| | | | | | | | | | | | | | The wrappers in include/linux/pci-dma-compat.h should go away. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Helge Deller <deller@gmx.de>
| * parisc: Make struct parisc_driver::remove() return voidUwe Kleine-König2021-08-301-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The caller of this function (parisc_driver_remove() in arch/parisc/kernel/drivers.c) ignores the return value, so better don't return any value at all to not wake wrong expectations in driver authors. The only function that could return a non-zero value before was ipmi_parisc_remove() which returns the return value of ipmi_si_remove_by_dev(). Make this function return void, too, as for all other callers the value is ignored, too. Also fold in a small checkpatch fix for: WARNING: Unnecessary space before function pointer arguments + void (*remove) (struct parisc_device *dev); Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> (for drivers/input) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Acked-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
* | parport: remove non-zero check on countColin Ian King2021-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The check for count appears to be incorrect since a non-zero count check occurs a couple of statements earlier. Currently the check is always false and the dev->port->irq != PARPORT_IRQ_NONE part of the check is never tested and the if statement is dead-code. Fix this by removing the check on count. Note that this code is pre-git history, so I can't find a sha for it. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Addresses-Coverity: ("Logically dead code") Link: https://lore.kernel.org/r/20210730100710.27405-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: serial: Retrieve IRQ vector with help of special getterAndy Shevchenko2021-07-291-1/+3
| | | | | | | | | | | | | | | | | | | | pci_irq_vector() may be used to retrieve IRQ vector for a PCI device. Use it instead of direct access. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210721150216.64823-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: serial: Get rid of IRQ_NONE abuseAndy Shevchenko2021-07-291-2/+3
|/ | | | | | | | | IRQ_NONE definition is solely for IRQ handlers and not for generic probe code. Replace it with plain integer. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210721150216.64823-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: Use string_upper() instead of open coded variantAndy Shevchenko2021-05-211-8/+3
| | | | | | | | Use string_upper() from string helper module instead of open coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210518133458.20403-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: remove editor modelines and cruftMasahiro Yamada2021-05-071-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | The section "19) Editor modelines and other cruft" in Documentation/process/coding-style.rst clearly says, "Do not include any of these in source files." I recently receive a patch to explicitly add a new one. Let's do treewide cleanups, otherwise some people follow the existing code and attempt to upstream their favoriate editor setups. It is even nicer if scripts/checkpatch.pl can check it. If we like to impose coding style in an editor-independent manner, I think editorconfig (patch [1]) is a saner solution. [1] https://lore.kernel.org/lkml/20200703073143.423557-1-danny@kdrag0n.dev/ Link: https://lkml.kernel.org/r/20210324054457.1477489-1-masahiroy@kernel.org Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> [auxdisplay] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* module: remove never implemented MODULE_SUPPORTED_DEVICELeon Romanovsky2021-03-175-5/+0
| | | | | | | | | | MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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