DPDK patches and discussions
 help / color / mirror / Atom feed
From: Ke Zhang <ke1x.zhang@intel.com>
To: ferruh.yigit@intel.com, dev@dpdk.org
Cc: Ke Zhang <ke1x.zhang@intel.com>, stable@dpdk.org
Subject: [PATCH v2] examples/kni: clear warning about discarding const qualifier
Date: Wed,  1 Jun 2022 05:45:25 +0000	[thread overview]
Message-ID: <20220601054525.7573-1-ke1x.zhang@intel.com> (raw)
In-Reply-To: <20220531091330.230715-1-ke1x.zhang@intel.com>

The warning info:
warning: passing argument 1 of ‘memcpy’ discards ‘const’
qualifier from pointer target type

Variable is done const intentionally to prevent using it
directly, using the new helper functions :
'eth_hw_addr_set()' and 'eth_hw_addr_random()'

Fixes: ea6b39b5b847 ("kni: remove ethtool support")
Cc: stable@dpdk.org

Signed-off-by: Ke Zhang <ke1x.zhang@intel.com>
---
 kernel/linux/kni/kni_misc.c | 4 ++--
 kernel/linux/kni/kni_net.c  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/linux/kni/kni_misc.c b/kernel/linux/kni/kni_misc.c
index 780187d8bf..1da8e812b7 100644
--- a/kernel/linux/kni/kni_misc.c
+++ b/kernel/linux/kni/kni_misc.c
@@ -403,10 +403,10 @@ kni_ioctl_create(struct net *net, uint32_t ioctl_num,
 
 	/* if user has provided a valid mac address */
 	if (is_valid_ether_addr(dev_info.mac_addr))
-		memcpy(net_dev->dev_addr, dev_info.mac_addr, ETH_ALEN);
+		eth_hw_addr_set(net_dev, dev_info.mac_addr);
 	else
 		/* Generate random MAC address. */
-		eth_random_addr(net_dev->dev_addr);
+		eth_hw_addr_random(net_dev);
 
 	if (dev_info.mtu)
 		net_dev->mtu = dev_info.mtu;
diff --git a/kernel/linux/kni/kni_net.c b/kernel/linux/kni/kni_net.c
index 29e5b9e21f..1da4f836aa 100644
--- a/kernel/linux/kni/kni_net.c
+++ b/kernel/linux/kni/kni_net.c
@@ -779,7 +779,7 @@ kni_net_set_mac(struct net_device *netdev, void *p)
 		return -EADDRNOTAVAIL;
 
 	memcpy(req.mac_addr, addr->sa_data, netdev->addr_len);
-	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+	eth_hw_addr_set(netdev, addr->sa_data);
 
 	ret = kni_net_process_request(netdev, &req);
 
-- 
2.25.1


  parent reply	other threads:[~2022-06-01  5:51 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-31  9:13 [PATCH] " Ke Zhang
2022-05-31 14:55 ` Stephen Hemminger
2022-06-01  5:45 ` Ke Zhang [this message]
2022-06-01 15:44   ` [PATCH v2] " Ferruh Yigit
2022-06-05  9:47 ` [PATCH v3 1/2] kni: use dedicated function to set random MAC address Andrew Rybchenko
2022-06-05  9:47   ` [PATCH v3 2/2] kni: fix warning about discarding const qualifier Andrew Rybchenko
2022-06-08 11:13 ` [PATCH v4 0/2] kni: fix build warnings with Linux 5.17+ Andrew Rybchenko
2022-06-08 11:13   ` [PATCH v4 1/2] kni: use dedicated function to set random MAC address Andrew Rybchenko
2022-06-08 11:13   ` [PATCH v4 2/2] kni: fix warning about discarding const qualifier Andrew Rybchenko
2022-06-08 12:11 ` [PATCH v5 0/2] kni: fix build warnings with Linux 5.17+ Andrew Rybchenko
2022-06-08 12:11   ` [PATCH v5 1/2] kni: use dedicated function to set random MAC address Andrew Rybchenko
2022-06-08 12:52     ` Ferruh Yigit
2022-06-08 12:11   ` [PATCH v5 2/2] kni: fix warning about discarding const qualifier Andrew Rybchenko
2022-06-08 12:54     ` Ferruh Yigit
2022-06-08 13:10       ` Ferruh Yigit
2022-06-08 17:23   ` [PATCH v5 0/2] kni: fix build warnings with Linux 5.17+ Andrew Rybchenko
2022-06-01  3:24 [PATCH v2] examples/kni: clear warning about discarding const qualifier Ke Zhang

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=20220601054525.7573-1-ke1x.zhang@intel.com \
    --to=ke1x.zhang@intel.com \
    --cc=dev@dpdk.org \
    --cc=ferruh.yigit@intel.com \
    --cc=stable@dpdk.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).