kernel/drivers/usb/gadget/udc/cdns2, branch linux-6.9.y

usb: cdns2: Replace snprintf() with the safer scnprintf() variant

2023-12-15T12:55:30Z

There is a general misunderstanding amongst engineers that {v}snprintf() returns the length of the data *actually* encoded into the destination array. However, as per the C99 standard {v}snprintf() really returns the length of the data that *would have been* written if there were enough space for it. This misunderstanding has led to buffer-overruns in the past. It's generally considered safer to use the {v}scnprintf() variants in their place (or even sprintf() in simple cases). So let's do that. Link: https://lwn.net/Articles/69419/ Link: https://github.com/KSPP/linux/issues/105 Cc: Pawel Laszczak Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20231213164246.1021885-7-lee@kernel.org Signed-off-by: Greg Kroah-Hartman

usb: cdns2: Fix spelling mistake in a trace message "Wakupe" -> "Wakeup"

2023-06-19T13:34:44Z

There is a spelling mistake in a trace message. Fix it. Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20230615144052.2254528-1-colin.i.king@gmail.com Signed-off-by: Greg Kroah-Hartman

usb: cdns2: Add tracepoints for CDNS2 driver

2023-06-13T09:59:29Z

Patch adds the series of tracepoints that can be used for debugging issues detected in driver. Signed-off-by: Pawel Laszczak Message-ID: <20230602102644.77470-4-pawell@cadence.com> Signed-off-by: Greg Kroah-Hartman

usb: cdns2: Add main part of Cadence USBHS driver

2023-06-13T09:59:29Z

This patch introduces the main part of Cadence USBHS driver to Linux kernel. To reduce the patch size a little bit, the header file gadget.h was intentionally added as separate patch. The Cadence USB 2.0 Controller is a highly configurable IP Core which supports both full and high speed data transfer. The current driver has been validated with FPGA platform. We have support for PCIe bus, which is used on FPGA prototyping. Signed-off-by: Pawel Laszczak Message-ID: <20230602102644.77470-3-pawell@cadence.com> Signed-off-by: Greg Kroah-Hartman

usb: cdns2: Device side header file for CDNS2 driver

2023-06-13T09:59:29Z

Patch defines macros, registers and structures used by Device side driver. Signed-off-by: Pawel Laszczak Message-ID: <20230602102644.77470-2-pawell@cadence.com> Signed-off-by: Greg Kroah-Hartman