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| author | Lukas Wunner <lukas@wunner.de> | 2023-10-19 12:29:13 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-21 12:38:53 +0200 |
| commit | 01e6e143a7fa7b82a69fd5cbd906c1686609cf90 (patch) | |
| tree | 18dd19ccbb66dd0b28b75b5e1813f0385c25a0f7 /drivers/usb | |
| parent | xhci: Update last segment pointer after Event Ring expansion (diff) | |
| download | linux-01e6e143a7fa7b82a69fd5cbd906c1686609cf90.tar.xz linux-01e6e143a7fa7b82a69fd5cbd906c1686609cf90.zip | |
xhci: Expose segment numbers in debugfs
Ring segments have just been amended with a monotonically increasing
number.
To allow developers to inspect the segment numbers and ensure
correctness in particular after ring expansion, expose them in each
ring's "trbs" file in debugfs.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20231019102924.2797346-9-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c index 99baa60ef50f..6d142cd61bd6 100644 --- a/drivers/usb/host/xhci-debugfs.c +++ b/drivers/usb/host/xhci-debugfs.c @@ -204,7 +204,7 @@ static void xhci_ring_dump_segment(struct seq_file *s, for (i = 0; i < TRBS_PER_SEGMENT; i++) { trb = &seg->trbs[i]; dma = seg->dma + i * sizeof(*trb); - seq_printf(s, "%pad: %s\n", &dma, + seq_printf(s, "%2u %pad: %s\n", seg->num, &dma, xhci_decode_trb(str, XHCI_MSG_MAX, le32_to_cpu(trb->generic.field[0]), le32_to_cpu(trb->generic.field[1]), le32_to_cpu(trb->generic.field[2]), |