openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Andreas Noever 2014-06-20 21:42:22 +02:00 committed by Greg Kroah-Hartman
parent 3543fb776d
commit 801dba53fe
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/thunderbolt/ctl.c
View File

@ -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");