From: Niklas Neronin <niklas.neronin@xxxxxxxxxxxxxxx>
'erst_size' represents the maximum capacity of entries that ERST can hold,
while 'num_entries' indicates the actual number of entries currently held
in the ERST. These two values are identical because the xhci driver does
not support ERST expansion. Thus, 'erst_size' is removed.
Suggested-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Signed-off-by: Niklas Neronin <niklas.neronin@xxxxxxxxxxxxxxx>
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-dbgcap.c | 2 +-
drivers/usb/host/xhci.h | 2 --
2 files changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 8a9869ef0db6..872d9cddbcef 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -516,7 +516,7 @@ static int xhci_dbc_mem_init(struct xhci_dbc *dbc, gfp_t flags)
goto string_fail;
/* Setup ERST register: */
- writel(dbc->erst.erst_size, &dbc->regs->ersts);
+ writel(dbc->erst.num_entries, &dbc->regs->ersts);
lo_hi_writeq(dbc->erst.erst_dma_addr, &dbc->regs->erstba);
deq = xhci_trb_virt_to_dma(dbc->ring_evt->deq_seg,
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 8a3ae5049d1c..10805196e197 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1376,8 +1376,6 @@ struct xhci_erst {
unsigned int num_entries;
/* xhci->event_ring keeps track of segment dma addresses */
dma_addr_t erst_dma_addr;
- /* Num entries the ERST can contain */
- unsigned int erst_size;
};
struct xhci_scratchpad {
--
2.25.1
