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linux/drivers/nfc/virtual_ncidev.c

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nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
nfc: Correct Samsung "Electronics" spelling in copyright headers Fix the misspelling of "Electronics" in copyright headers across: - s3fwrn5 driver - virtual_ncidev driver Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20250520072119.176018-1-sumanth.gavini@yahoo.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20 00:21:19 -07:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
nfc: virtual_ncidev: Use wait queue instead of polling In previous version, the user level virtual device application that used this driver should have the polling scheme to read a NCI frame. To remove this polling scheme, use Wait Queue. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-17 06:28:11 -07:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: virtual_ncidev: Add variable to check if ndev is running syzbot reported an memory leak that happens when an skb is add to send_buff after virtual nci closed. This patch adds a variable to track if the ndev is running before handling new skb in send function. Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com> Reported-by: syzbot+6eb09d75211863f15e3e@syzkaller.appspotmail.com Closes: https://lore.kernel.org/lkml/00000000000075472b06007df4fb@google.com Reviewed-by: Bongsu Jeon Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-21 15:53:57 +08:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
nfc: virtual_ncidev: Add variable to check if ndev is running syzbot reported an memory leak that happens when an skb is add to send_buff after virtual nci closed. This patch adds a variable to track if the ndev is running before handling new skb in send function. Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com> Reported-by: syzbot+6eb09d75211863f15e3e@syzkaller.appspotmail.com Closes: https://lore.kernel.org/lkml/00000000000075472b06007df4fb@google.com Reviewed-by: Bongsu Jeon Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-21 15:53:57 +08:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: virtual_ncidev: Add variable to check if ndev is running syzbot reported an memory leak that happens when an skb is add to send_buff after virtual nci closed. This patch adds a variable to track if the ndev is running before handling new skb in send function. Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com> Reported-by: syzbot+6eb09d75211863f15e3e@syzkaller.appspotmail.com Closes: https://lore.kernel.org/lkml/00000000000075472b06007df4fb@google.com Reviewed-by: Bongsu Jeon Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-21 15:53:57 +08:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: virtual_ncidev: Add variable to check if ndev is running syzbot reported an memory leak that happens when an skb is add to send_buff after virtual nci closed. This patch adds a variable to track if the ndev is running before handling new skb in send function. Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com> Reported-by: syzbot+6eb09d75211863f15e3e@syzkaller.appspotmail.com Closes: https://lore.kernel.org/lkml/00000000000075472b06007df4fb@google.com Reviewed-by: Bongsu Jeon Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-21 15:53:57 +08:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: virtual_ncidev: Fix memory leak in virtual_nci_send() skb should be free in virtual_nci_send(), otherwise kmemleak will report memleak. Steps for reproduction (simulated in qemu): cd tools/testing/selftests/nci make ./nci_dev BUG: memory leak unreferenced object 0xffff888107588000 (size 208): comm "nci_dev", pid 206, jiffies 4294945376 (age 368.248s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008d94c8fd>] __alloc_skb+0x1da/0x290 [<00000000278bc7f8>] nci_send_cmd+0xa3/0x350 [<0000000081256a22>] nci_reset_req+0x6b/0xa0 [<000000009e721112>] __nci_request+0x90/0x250 [<000000005d556e59>] nci_dev_up+0x217/0x5b0 [<00000000e618ce62>] nfc_dev_up+0x114/0x220 [<00000000981e226b>] nfc_genl_dev_up+0x94/0xe0 [<000000009bb03517>] genl_family_rcv_msg_doit.isra.14+0x228/0x2d0 [<00000000b7f8c101>] genl_rcv_msg+0x35c/0x640 [<00000000c94075ff>] netlink_rcv_skb+0x11e/0x350 [<00000000440cfb1e>] genl_rcv+0x24/0x40 [<0000000062593b40>] netlink_unicast+0x43f/0x640 [<000000001d0b13cc>] netlink_sendmsg+0x73a/0xbf0 [<000000003272487f>] __sys_sendto+0x324/0x370 [<00000000ef9f1747>] __x64_sys_sendto+0xdd/0x1b0 [<000000001e437841>] do_syscall_64+0x3f/0x90 Fixes: e624e6c3e777 ("nfc: Add a virtual nci device driver") Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20221020030505.15572-1-shangxiaojing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-20 11:05:05 +08:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: virtual_ncidev: Fix memory leak in virtual_nci_send() skb should be free in virtual_nci_send(), otherwise kmemleak will report memleak. Steps for reproduction (simulated in qemu): cd tools/testing/selftests/nci make ./nci_dev BUG: memory leak unreferenced object 0xffff888107588000 (size 208): comm "nci_dev", pid 206, jiffies 4294945376 (age 368.248s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008d94c8fd>] __alloc_skb+0x1da/0x290 [<00000000278bc7f8>] nci_send_cmd+0xa3/0x350 [<0000000081256a22>] nci_reset_req+0x6b/0xa0 [<000000009e721112>] __nci_request+0x90/0x250 [<000000005d556e59>] nci_dev_up+0x217/0x5b0 [<00000000e618ce62>] nfc_dev_up+0x114/0x220 [<00000000981e226b>] nfc_genl_dev_up+0x94/0xe0 [<000000009bb03517>] genl_family_rcv_msg_doit.isra.14+0x228/0x2d0 [<00000000b7f8c101>] genl_rcv_msg+0x35c/0x640 [<00000000c94075ff>] netlink_rcv_skb+0x11e/0x350 [<00000000440cfb1e>] genl_rcv+0x24/0x40 [<0000000062593b40>] netlink_unicast+0x43f/0x640 [<000000001d0b13cc>] netlink_sendmsg+0x73a/0xbf0 [<000000003272487f>] __sys_sendto+0x324/0x370 [<00000000ef9f1747>] __x64_sys_sendto+0xdd/0x1b0 [<000000001e437841>] do_syscall_64+0x3f/0x90 Fixes: e624e6c3e777 ("nfc: Add a virtual nci device driver") Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20221020030505.15572-1-shangxiaojing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-20 11:05:05 +08:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
nfc: constify nci_ops The struct nci_ops is modified by NFC core in only one case: nci_allocate_device() receives too many proprietary commands (prop_ops) to configure. This is a build time known constrain, so a graceful handling of such case is not necessary. Instead, fail the nci_allocate_device() and add BUILD_BUG_ON() to places which set these. This allows to constify the struct nci_ops (consisting of function pointers) for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-24 23:47:33 +02:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: virtual_ncidev: Use wait queue instead of polling In previous version, the user level virtual device application that used this driver should have the polling scheme to read a NCI frame. To remove this polling scheme, use Wait Queue. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-17 06:28:11 -07:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
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
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00
NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Bongsu Jeon <bongsu.jeon@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-15 11:00:17 +01:00
nfc: virtual_ncidev: Use module_misc_device macro to simplify the code Use the module_misc_device macro to simplify the code, which is the same as declaring with module_init() and module_exit(). Signed-off-by: Li Zetao <lizetao1@huawei.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-15 15:49:27 +08:00
nfc: Add a virtual nci device driver NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 22:08:28 +09:00