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Jonathan Bell dc30fdb974 usb: dwc2: limit "maximum packet size" for split-IN transfers
dwc2_hc_start_transfer() overwrites hc->xfer_len for split-IN transfers.
Drivers may not allocate buffers that are multiples of the endpoint max
packet size, which may cause buffer overruns in the last transfer.

The hardware needs HCTSIZ to be set to a multiple of HCCHAR.MPS, so trim
chan->max_packet in dwc2_assign_and_init_hc().

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
2025-11-24 14:23:39 +00:00
2025-11-24 14:23:33 +00:00
2025-11-24 14:23:20 +00:00
2022-09-28 09:02:20 +02:00
2025-02-19 14:53:27 -07:00
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Linux kernel

There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first.

In order to build the documentation, use make htmldocs or make pdfdocs. The formatted documentation can also be read online at:

https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.

Build status for rpi-6.1.y: Pi kernel build tests dtoverlaycheck

Build status for rpi-6.6.y: Pi kernel build tests dtoverlaycheck

Build status for rpi-6.12.y: Pi kernel build tests dtoverlaycheck

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