usb: xhci: remove deprecated TODO comment

The Device Context Base Address Array (DCBAA) contains pointers to device
contexts. These fields are 64-bit registers, capable of holding 64-bit
addresses.

When struct 'xhci_device_context_array' was introduced in commit [1],
the entries were represented as pairs of 'u32', requiring a custom helper
function to set 64-bit addresses. This was later made redundant by
commit [2], which changed the representation to a single 'u64', allowing
direct assignment.

The associated TODO comment referencing the old 32-bit representation is
no longer relevant and is removed.

Link: https://git.kernel.org/torvalds/c/a74588f94655
Link: https://git.kernel.org/torvalds/c/8e595a5d30a5
Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://patch.msgid.link/20251119142417.2820519-13-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index adabe26b413bc2b80305453cc633618cd3990f29..3d644d16d9fbc2a3a15262d89d3e45c7e7f95348 100644 (file)
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -791,7 +791,6 @@ struct xhci_device_context_array {
        /* private xHCD pointers */
        dma_addr_t      dma;
 };
-/* TODO: write function to set the 64-bit device DMA address */
 /*
  * TODO: change this to be dynamically sized at HC mem init time since the HC
  * might not be able to handle the maximum number of devices possible.