From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/usb/image/microtek.h | 55 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 drivers/usb/image/microtek.h (limited to 'drivers/usb/image/microtek.h') diff --git a/drivers/usb/image/microtek.h b/drivers/usb/image/microtek.h new file mode 100644 index 000000000..7bd5f4639 --- /dev/null +++ b/drivers/usb/image/microtek.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + /* + * Driver for Microtek Scanmaker X6 USB scanner and possibly others. + * + * (C) Copyright 2000 John Fremlin + * (C) Copyright 2000 Oliver Neukum + * + * See microtek.c for history + * + */ + +typedef void (*mts_scsi_cmnd_callback)(struct scsi_cmnd *); + + +struct mts_transfer_context +{ + struct mts_desc *instance; + mts_scsi_cmnd_callback final_callback; + struct scsi_cmnd *srb; + + void *data; + unsigned data_length; + int data_pipe; + struct scatterlist *curr_sg; + + u8 *scsi_status; /* status returned from ep_response after command completion */ +}; + + +struct mts_desc { + struct mts_desc *next; + struct mts_desc *prev; + + struct usb_device *usb_dev; + struct usb_interface *usb_intf; + + /* Endpoint addresses */ + u8 ep_out; + u8 ep_response; + u8 ep_image; + + struct Scsi_Host *host; + + struct urb *urb; + struct mts_transfer_context context; +}; + + +#define MTS_EP_OUT 0x1 +#define MTS_EP_RESPONSE 0x2 +#define MTS_EP_IMAGE 0x3 +#define MTS_EP_TOTAL 0x3 + +#define MTS_SCSI_ERR_MASK ~0x3fu + -- cgit v1.3.1