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path: root/drivers/usb/gadget/udc/amd5536udc_pci.c
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2021-03-23usb: gadget: udc: amd5536udc_pci fix null-ptr-dereferenceTong Zhang
init_dma_pools() calls dma_pool_create(...dev->dev) to create dma pool. however, dev->dev is actually set after calling init_dma_pools(), which effectively makes dma_pool_create(..NULL) and cause crash. To fix this issue, init dma only after dev->dev is set. [ 1.317993] RIP: 0010:dma_pool_create+0x83/0x290 [ 1.323257] Call Trace: [ 1.323390] ? pci_write_config_word+0x27/0x30 [ 1.323626] init_dma_pools+0x41/0x1a0 [snps_udc_core] [ 1.323899] udc_pci_probe+0x202/0x2b1 [amd5536udc_pci] Fixes: 7c51247a1f62 (usb: gadget: udc: Provide correct arguments for 'dma_pool_create') Cc: stable <stable@vger.kernel.org> Signed-off-by: Tong Zhang <ztong0001@gmail.com> Link: https://lore.kernel.org/r/20210317230400.357756-1-ztong0001@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15usb: gadget: Replace HTTP links with HTTPS onesAlexander A. Klimov
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Link: https://lore.kernel.org/r/20200710190919.31464-1-grandmaster@al2klimov.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09usb: gadget: udc: amd5536udc_pci: Remove unused variable 'mod_desc'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/usb/gadget/udc/amd5536udc_pci.c:52:19: warning: ‘mod_desc’ defined but not used [-Wunused-const-variable=] Cc: Felipe Balbi <balbi@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20200706133341.476881-5-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: udc: amd5536udc_pci: remove useless cast for driver.nameCorentin Labbe
pci_driver name is const char pointer, so it not useful to cast name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-4-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-06remove ioremap_nocache and devm_ioremap_nocacheChristoph Hellwig
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>
2017-11-07USB: gadget: udc: Remove redundant license textGreg Kroah-Hartman
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com> Cc: Raviteja Garimella <raviteja.garimella@broadcom.com> Cc: Romain Perier <romain.perier@collabora.com> Cc: Johan Hovold <johan@kernel.org> Cc: Al Cooper <alcooperx@gmail.com> Cc: Srinath Mannam <srinath.mannam@broadcom.com> Cc: Roger Quadros <rogerq@ti.com> Cc: Krzysztof Opasiak <k.opasiak@samsung.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: "Felix Hädicke" <felixhaedicke@web.de> Cc: Peter Chen <peter.chen@nxp.com> Cc: Allen Pais <allen.lkml@gmail.com> Cc: Yuyang Du <yuyang.du@intel.com> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04USB: add SPDX identifiers to all remaining files in drivers/usb/Greg Kroah-Hartman
It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/usb/ and include/linux/usb* files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-13usb: gadget: udc: make debug prints compatible with both pci and platform ↵Raviteja Garimella
devices This patch adds a struct device member to UDC data structure and makes changes to the arguments of dev_err and dev_dbg calls so that the debug prints work for both pci and platform devices. Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-04-11usb: gadget: udc: amd5536: split core and PCI layerRaviteja Garimella
This patch splits the amd5536udc driver into two -- one that does pci device registration and the other file that does the rest of the driver tasks like the gadget/ep ops etc for Synopsys UDC. This way of splitting helps in exporting core driver symbols which can be used by any other platform/pci driver that is written for the same Synopsys USB device controller. The current patch also includes a change in the Kconfig and Makefile. A new config option USB_SNP_CORE will be selected automatically when any one of the platform or pci driver for the same UDC is selected. Main changes: - amd5536udc_pci.c: PCI device registration is moved to this file. - amd5536udc.c: This file does rest of the core UDC fucntionality. 9 symbols are exported so as to be used by amd5536udc_pci.c. Module parameter definitions are moved to header file. - amd5536udc.h: Function declarations, module parameters definitions and few common header file includes are added to this file - Kconfig: New USB_SNP_CORE option is added which will be auto selected when any pci or platform driver config option for the UDC is chosen. - Makefile: Compiles the core and pci files separately. Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>