diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2023-01-29 19:23:10 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-31 10:40:54 +0100 |
| commit | 49814e2c9c5776c7dc7cfd151aba15bd91804c3c (patch) | |
| tree | f820277a016ca471055065551ac33cd1d3a8d10c /drivers/usb/early/xhci-dbc.c | |
| parent | e662c16f822fe93ae11769cffb8bf0d867417633 (diff) | |
usb: early: xhci-dbc: Use memcpy_and_pad()
Instead of zeroing some memory and then copying data in part or all of it,
use memcpy_and_pad().
This avoids writing some memory twice and should save a few cycles.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/b447a7e9778d3f9e6997eb9494f1687dc2d5d3bf.1675016180.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/early/xhci-dbc.c')
| -rw-r--r-- | drivers/usb/early/xhci-dbc.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c index 965a24e47c0f..341408410ed9 100644 --- a/drivers/usb/early/xhci-dbc.c +++ b/drivers/usb/early/xhci-dbc.c @@ -499,8 +499,7 @@ static int xdbc_bulk_transfer(void *data, int size, bool read) addr = xdbc.in_dma; xdbc.flags |= XDBC_FLAGS_IN_PROCESS; } else { - memset(xdbc.out_buf, 0, XDBC_MAX_PACKET); - memcpy(xdbc.out_buf, data, size); + memcpy_and_pad(xdbc.out_buf, XDBC_MAX_PACKET, data, size, 0); addr = xdbc.out_dma; xdbc.flags |= XDBC_FLAGS_OUT_PROCESS; } |