kernel/linux.git/drivers/nfc/virtual_ncidev.c, branch v5.15.7

nfc: virtual_ncidev: Use wait queue instead of polling

2021-08-18T09:17:57+00:00

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 Signed-off-by: David S. Miller

nfc: virtual_ncidev: constify pointer to nfc_dev

2021-07-29T11:28:03+00:00

virtual_ncidev_ioctl() does not modify struct nfc_dev, so local variable can be a pointer to const. Signed-off-by: Krzysztof Kozlowski Signed-off-by: David S. Miller

nfc: constify nci_ops

2021-07-25T08:21:20+00:00

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 Signed-off-by: David S. Miller

nfc: Add a virtual nci device driver

2021-01-30T02:03:33+00:00

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 Signed-off-by: Jakub Kicinski