mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-30 23:54:04 +08:00
59b4e0cd4d
This patch corrects the SPDX License Identifier style in header files related to USB Storage driver configuration. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used). Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Link: https://lore.kernel.org/r/20200419131653.GA6611@nishad Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Driver for USB Mass Storage compliant devices
|
|
* Debugging Functions Header File
|
|
*
|
|
* Current development and maintenance by:
|
|
* (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
|
|
*
|
|
* Initial work by:
|
|
* (c) 1999 Michael Gee (michael@linuxspecific.com)
|
|
*
|
|
* This driver is based on the 'USB Mass Storage Class' document. This
|
|
* describes in detail the protocol used to communicate with such
|
|
* devices. Clearly, the designers had SCSI and ATAPI commands in
|
|
* mind when they created this document. The commands are all very
|
|
* similar to commands in the SCSI-II and ATAPI specifications.
|
|
*
|
|
* It is important to note that in a number of cases this class
|
|
* exhibits class-specific exemptions from the USB specification.
|
|
* Notably the usage of NAK, STALL and ACK differs from the norm, in
|
|
* that they are used to communicate wait, failed and OK on commands.
|
|
*
|
|
* Also, for certain devices, the interrupt endpoint is used to convey
|
|
* status of a command.
|
|
*/
|
|
|
|
#ifndef _DEBUG_H_
|
|
#define _DEBUG_H_
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#ifdef CONFIG_USB_STORAGE_DEBUG
|
|
void usb_stor_show_command(const struct us_data *us, struct scsi_cmnd *srb);
|
|
void usb_stor_show_sense(const struct us_data *us, unsigned char key,
|
|
unsigned char asc, unsigned char ascq);
|
|
__printf(2, 3) void usb_stor_dbg(const struct us_data *us,
|
|
const char *fmt, ...);
|
|
|
|
#define US_DEBUG(x) x
|
|
#else
|
|
__printf(2, 3)
|
|
static inline void _usb_stor_dbg(const struct us_data *us,
|
|
const char *fmt, ...)
|
|
{
|
|
}
|
|
#define usb_stor_dbg(us, fmt, ...) \
|
|
do { if (0) _usb_stor_dbg(us, fmt, ##__VA_ARGS__); } while (0)
|
|
#define US_DEBUG(x)
|
|
#endif
|
|
|
|
#endif
|