There is no point in zeroing 'buf'.
It would be cleared only once, and if the 'while' loop is executed several
times, all but the first run would have a 'dirty' buffer.
Moreover, the size of the chunk is computed in the loop and this size is
passed to xdbc_bulk_write().
So remove this useless memset().
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Untested.
---
drivers/usb/early/xhci-dbc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index f3e23be227d4..965a24e47c0f 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -881,7 +881,7 @@ static void early_xdbc_write(struct console *con, const char *str, u32 n)
if (!xdbc.xdbc_reg)
return;
- memset(buf, 0, XDBC_MAX_PACKET);
+
while (n > 0) {
for (chunk = 0; chunk < XDBC_MAX_PACKET && n > 0; str++, chunk++, n--) {
--
2.34.1
