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authorAndreas Noever <andreas.noever@gmail.com>2014-06-20 23:42:22 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-21 00:06:01 +0400
commit801dba53fef8bfc2f1424c33914a41810594bde2 (patch)
treefb8e32b297378ac864844eebcea1cbb9f5325ed6
parent3543fb776d8e63934615bf7070ee5fa5a6a7382d (diff)
downloadlinux-801dba53fef8bfc2f1424c33914a41810594bde2.tar.xz
thunderbolt: Add casts to prevent endianness warnings
Thunderbolt packets are big endian. Cast pkg->buffer to __be32* when accessing the checksum. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/thunderbolt/ctl.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index 4c6da92edcb4..799634b382c6 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -355,7 +355,7 @@ static int tb_ctl_tx(struct tb_ctl *ctl, void *data, size_t len,
pkg->frame.sof = type;
pkg->frame.eof = type;
cpu_to_be32_array(pkg->buffer, data, len / 4);
- *(u32 *) (pkg->buffer + len) = tb_crc(pkg->buffer, len);
+ *(__be32 *) (pkg->buffer + len) = tb_crc(pkg->buffer, len);
res = ring_tx(ctl->tx, &pkg->frame);
if (res) /* ring is stopped */
@@ -412,7 +412,7 @@ static void tb_ctl_rx_callback(struct tb_ring *ring, struct ring_frame *frame,
}
frame->size -= 4; /* remove checksum */
- if (*(u32 *) (pkg->buffer + frame->size)
+ if (*(__be32 *) (pkg->buffer + frame->size)
!= tb_crc(pkg->buffer, frame->size)) {
tb_ctl_err(pkg->ctl,
"RX: checksum mismatch, dropping packet\n");