mailbox: mailbox-test: avoid reading iomem twice

Don't pass mmio region as source to print_hex_dump() and then
again to memcpy_fromio(). Do it once and give print_hex_dump()
the buffer we just read the data in.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
index f82dc8926687..684ae17dcf39 100644
--- a/drivers/mailbox/mailbox-test.c
+++ b/drivers/mailbox/mailbox-test.c
@@ -221,11 +221,10 @@ static void mbox_test_receive_message(struct mbox_client *client, void *message)
 
         spin_lock_irqsave(&tdev->lock, flags);
         if (tdev->mmio) {
+                memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
                 print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
                                DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
-                               __io_virt(tdev->mmio), MBOX_MAX_MSG_LEN, true);
-                memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
-
+                               tdev->rx_buffer, MBOX_MAX_MSG_LEN, true);
         } else if (message) {
                 print_hex_dump(KERN_INFO, "Client: Received [API]: ",
                                DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,