From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Alexandre Torgue <alexandre.torgue@st.com>,
"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.9 06/20] net: stmmac: handle endianness in dwmac4_get_timestamp
Date: Thu, 21 Feb 2019 15:35:44 +0100 [thread overview]
Message-ID: <20190221125243.078416311@linuxfoundation.org> (raw)
In-Reply-To: <20190221125242.153179182@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexandre Torgue <alexandre.torgue@st.com>
[ Upstream commit 224babd62d6f19581757a6d8bae3bf9501fc10de ]
GMAC IP is little-endian and used on several kind of CPU (big or little
endian). Main callbacks functions of the stmmac drivers take care about
it. It was not the case for dwmac4_get_timestamp function.
Fixes: ba1ffd74df74 ("stmmac: fix PTP support for GMAC4")
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
@@ -237,15 +237,18 @@ static inline u64 dwmac4_get_timestamp(v
static int dwmac4_rx_check_timestamp(void *desc)
{
struct dma_desc *p = (struct dma_desc *)desc;
+ unsigned int rdes0 = le32_to_cpu(p->des0);
+ unsigned int rdes1 = le32_to_cpu(p->des1);
+ unsigned int rdes3 = le32_to_cpu(p->des3);
u32 own, ctxt;
int ret = 1;
- own = p->des3 & RDES3_OWN;
- ctxt = ((p->des3 & RDES3_CONTEXT_DESCRIPTOR)
+ own = rdes3 & RDES3_OWN;
+ ctxt = ((rdes3 & RDES3_CONTEXT_DESCRIPTOR)
>> RDES3_CONTEXT_DESCRIPTOR_SHIFT);
if (likely(!own && ctxt)) {
- if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff))
+ if ((rdes0 == 0xffffffff) && (rdes1 == 0xffffffff))
/* Corrupted value */
ret = -EINVAL;
else
next prev parent reply other threads:[~2019-02-21 14:49 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 14:35 [PATCH 4.9 00/20] 4.9.160-stable review Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 01/20] net: fix IPv6 prefix route residue Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 02/20] vsock: cope with memory allocation failure at socket creation time Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 03/20] hwmon: (lm80) Fix missing unlock on error in set_fan_div() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 04/20] net: Fix for_each_netdev_feature on Big endian Greg Kroah-Hartman
2019-02-21 17:26 ` Mehrtens, Hauke
2019-02-21 19:13 ` Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 05/20] net: phy: xgmiitorgmii: Support generic PHY status read Greg Kroah-Hartman
2019-02-21 14:35 ` Greg Kroah-Hartman [this message]
2019-02-21 14:35 ` [PATCH 4.9 07/20] net: validate untrusted gso packets without csum offload Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 08/20] sky2: Increase D3 delay again Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 09/20] vhost: correctly check the return value of translate_desc() in log_used() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 10/20] net: Add header for usage of fls64() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 11/20] tcp: tcp_v4_err() should be more careful Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 12/20] net: Do not allocate page fragments that are not skb aligned Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 13/20] tcp: clear icsk_backoff in tcp_write_queue_purge() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 14/20] vxlan: test dev->flags & IFF_UP before calling netif_rx() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 15/20] net: stmmac: Fix a race in EEE enable callback Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 16/20] net: ipv4: use a dedicated counter for icmp_v4 redirect packets Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 17/20] btrfs: Remove false alert when fiemap range is smaller than on-disk extent Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 18/20] net/x25: do not hold the cpu too long in x25_new_lci() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 19/20] mISDN: fix a race in dev_expire_timer() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.9 20/20] ax25: fix possible use-after-free Greg Kroah-Hartman
2019-02-21 18:19 ` [PATCH 4.9 00/20] 4.9.160-stable review kernelci.org bot
2019-02-22 2:35 ` Naresh Kamboju
2019-02-22 8:13 ` Jon Hunter
2019-02-22 23:03 ` shuah
2019-02-22 23:31 ` Guenter Roeck
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190221125243.078416311@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=alexandre.torgue@st.com \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).