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linux/drivers/bluetooth/btrsi.c

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Bluetooth: Add SPDX id lines to some source files Many bluetooth source files are missing SPDX-License-Identifier lines. Add appropriate IDs to these files, and remove other license lines from the headers. Leave the warranty disclaimer in files where the license ID is GPL-2.0 but the wording of the disclaimer is slightly different from that of the GPL v2 disclaimer. It is not different enough to cause licensing conflicts, but is kept to honor the original contributors' legal intent. Signed-off-by: Tim Bird <tim.bird@sony.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-06-04 11:06:33 -06:00
Bluetooth: btrsi: use non-kernel-doc comment for copyright kernel-doc complains about a non-kernel-doc comment that uses "/**" to begin the comment, so change it to just "/*". drivers/bluetooth/btrsi.c:2: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Copyright (c) 2017 Redpine Signals Inc. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Aditya Srivastava <yashsri421@gmail.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Cc: linux-bluetooth@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Cc: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Cc: Sanjay Kumar Konduri <sanjay.konduri@redpinesignals.com> Cc: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Cc: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-07-20 19:03:34 -07:00
Bluetooth: btrsi: add new rsi bluetooth driver Redpine bluetooth driver is a thin driver which depends on 'rsi_91x' driver for transmitting and receiving packets to/from device. It creates hci interface when attach() is called from 'rsi_91x' module. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 19:56:15 +05:30
move asm/unaligned.h to linux/unaligned.h asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
2024-10-01 15:35:57 -04:00
Bluetooth: btrsi: add new rsi bluetooth driver Redpine bluetooth driver is a thin driver which depends on 'rsi_91x' driver for transmitting and receiving packets to/from device. It creates hci interface when attach() is called from 'rsi_91x' module. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 19:56:15 +05:30
Bluetooth: btrsi: fix bt tx timeout issue observed sometimes data is coming with unaligned address from kernel BT stack. If unaligned address is passed, some data in payload is stripped when packet is loading to firmware and this results, BT connection timeout is happening. sh# hciconfig hci0 up Can't init device hci0: hci0 command 0x0c03 tx timeout Fixed this by moving the data to aligned address. Signed-off-by: Sanjay Kumar Konduri <sanjay.konduri@redpinesignals.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-09-03 11:27:46 +05:30
Bluetooth: btrsi: add new rsi bluetooth driver Redpine bluetooth driver is a thin driver which depends on 'rsi_91x' driver for transmitting and receiving packets to/from device. It creates hci interface when attach() is called from 'rsi_91x' module. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 19:56:15 +05:30
Bluetooth: btrsi: fix bt tx timeout issue observed sometimes data is coming with unaligned address from kernel BT stack. If unaligned address is passed, some data in payload is stripped when packet is loading to firmware and this results, BT connection timeout is happening. sh# hciconfig hci0 up Can't init device hci0: hci0 command 0x0c03 tx timeout Fixed this by moving the data to aligned address. Signed-off-by: Sanjay Kumar Konduri <sanjay.konduri@redpinesignals.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-09-03 11:27:46 +05:30
Bluetooth: btrsi: add new rsi bluetooth driver Redpine bluetooth driver is a thin driver which depends on 'rsi_91x' driver for transmitting and receiving packets to/from device. It creates hci interface when attach() is called from 'rsi_91x' module. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 19:56:15 +05:30
Bluetooth: btrsi: fix bt tx timeout issue observed sometimes data is coming with unaligned address from kernel BT stack. If unaligned address is passed, some data in payload is stripped when packet is loading to firmware and this results, BT connection timeout is happening. sh# hciconfig hci0 up Can't init device hci0: hci0 command 0x0c03 tx timeout Fixed this by moving the data to aligned address. Signed-off-by: Sanjay Kumar Konduri <sanjay.konduri@redpinesignals.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-09-03 11:27:46 +05:30
Bluetooth: btrsi: add new rsi bluetooth driver Redpine bluetooth driver is a thin driver which depends on 'rsi_91x' driver for transmitting and receiving packets to/from device. It creates hci interface when attach() is called from 'rsi_91x' module. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 19:56:15 +05:30
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 16:37:42 -08:00
Bluetooth: btrsi: add new rsi bluetooth driver Redpine bluetooth driver is a thin driver which depends on 'rsi_91x' driver for transmitting and receiving packets to/from device. It creates hci interface when attach() is called from 'rsi_91x' module. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 19:56:15 +05:30
Bluetooth: btrsi: Move set_bt_context after successful HCI registration In rsi_hci_attach(), ops->set_bt_context() stores the newly allocated h_adapter into common->bt_adapter before hci_alloc_dev() and hci_register_dev() are called. If either of these fails, h_adapter is freed but common->bt_adapter remains a non-NULL dangling pointer. This causes a deterministically reachable use-after-free when the device operates in a BT+WiFi coexistence mode and CONFIG_RSI_COEX is enabled. The following software-only trigger paths exist: 1. SDIO driver .remove (rsi_disconnect) 2. USB driver .disconnect (rsi_disconnect) 3. SDIO driver .shutdown (rsi_shutdown) 4. Hibernation .freeze (rsi_freeze) All four paths check: if (IS_ENABLED(CONFIG_RSI_COEX) && coex_mode > 1 && bt_adapter) rsi_bt_ops.detach(bt_adapter); // use-after-free coex_mode is set during rsi_91x_init(), before rsi_hci_attach() is called, and is not cleared on attach failure. Since set_bt_context() already wrote bt_adapter before the failure, the deinit paths see a non-NULL dangling pointer and proceed to detach it. Fix this by moving set_bt_context() after hci_register_dev() succeeds. On failure paths bt_adapter stays NULL, and the deinit callers correctly skip the detach call. Signed-off-by: Chen Changcheng <chenchangcheng@kylinos.cn> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-07-22 16:31:36 +08:00
Bluetooth: btrsi: add new rsi bluetooth driver Redpine bluetooth driver is a thin driver which depends on 'rsi_91x' driver for transmitting and receiving packets to/from device. It creates hci interface when attach() is called from 'rsi_91x' module. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 19:56:15 +05:30