xhci: Adjust segment numbers after ring expansion

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Initial xhci_ring allocation has just been amended to assign a
monotonically increasing number to each ring segment.

However rings may be expanded after initial allocation.

So number newly inserted segments starting from the preceding segment in
the ring and renumber all segments succeeding the newly inserted ones.

This is not a fix because ring expansion currently isn't done on the
Event Ring and that's the only ring type using the segment number.
It's just in preparation for when either Event Ring expansion is added
or when other ring types start making use of the segment number.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20231019102924.2797346-7-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Lukas Wunner 2023-10-19 13:29:11 +03:00 • committed by Greg Kroah-Hartman

parent 28084d3fcc

commit 35899f58fe

1 changed files with 10 additions and 6 deletions

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drivers/usb/host/xhci-mem.c

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