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Code

net/ncsi: Use struct sockaddr_storage for pending_mac

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To avoid future casting with coming API type changes, switch struct
ncsi_dev_priv::pending_mac to a full struct sockaddr_storage.

Acked-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kees Cook <kees@kernel.org>
Link: https://patch.msgid.link/20250521204619.2301870-3-kees@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Kees Cook 2025-05-21 13:46:11 -07:00 committed by Paolo Abeni
parent 161972650d
commit db586cad6f
3 changed files with 11 additions and 11 deletions
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2
net/ncsi/internal.h
View File

@ -322,7 +322,7 @@ struct ncsi_dev_priv {
#define NCSI_DEV_RESHUFFLE 4
#define NCSI_DEV_RESET 8 /* Reset state of NC */
unsigned int gma_flag; /* OEM GMA flag */
struct sockaddr pending_mac; /* MAC address received from GMA */
struct sockaddr_storage pending_mac; /* MAC address received from GMA */
spinlock_t lock; /* Protect the NCSI device */
unsigned int package_probe_id;/* Current ID during probe */
unsigned int package_num; /* Number of packages */

2
net/ncsi/ncsi-manage.c
View File

@ -1058,7 +1058,7 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
break;
case ncsi_dev_state_config_apply_mac:
rtnl_lock();
ret = dev_set_mac_address(dev, &ndp->pending_mac, NULL);
ret = dev_set_mac_address(dev, (struct sockaddr *)&ndp->pending_mac, NULL);
rtnl_unlock();
if (ret < 0)
netdev_warn(dev, "NCSI: 'Writing MAC address to device failed\n");

18
net/ncsi/ncsi-rsp.c
View File

@ -628,7 +628,7 @@ static int ncsi_rsp_handler_snfc(struct ncsi_request *nr)
static int ncsi_rsp_handler_oem_gma(struct ncsi_request *nr, int mfr_id)
{
struct ncsi_dev_priv *ndp = nr->ndp;
struct sockaddr *saddr = &ndp->pending_mac;
struct sockaddr_storage *saddr = &ndp->pending_mac;
struct net_device *ndev = ndp->ndev.dev;
struct ncsi_rsp_oem_pkt *rsp;
u32 mac_addr_off = 0;
@ -644,11 +644,11 @@ static int ncsi_rsp_handler_oem_gma(struct ncsi_request *nr, int mfr_id)
else if (mfr_id == NCSI_OEM_MFR_INTEL_ID)
mac_addr_off = INTEL_MAC_ADDR_OFFSET;
saddr->sa_family = ndev->type;
memcpy(saddr->sa_data, &rsp->data[mac_addr_off], ETH_ALEN);
saddr->ss_family = ndev->type;
memcpy(saddr->__data, &rsp->data[mac_addr_off], ETH_ALEN);
if (mfr_id == NCSI_OEM_MFR_BCM_ID || mfr_id == NCSI_OEM_MFR_INTEL_ID)
eth_addr_inc((u8 *)saddr->sa_data);
if (!is_valid_ether_addr((const u8 *)saddr->sa_data))
eth_addr_inc(saddr->__data);
if (!is_valid_ether_addr(saddr->__data))
return -ENXIO;
/* Set the flag for GMA command which should only be called once */
@ -1088,7 +1088,7 @@ static int ncsi_rsp_handler_netlink(struct ncsi_request *nr)
static int ncsi_rsp_handler_gmcma(struct ncsi_request *nr)
{
struct ncsi_dev_priv *ndp = nr->ndp;
struct sockaddr *saddr = &ndp->pending_mac;
struct sockaddr_storage *saddr = &ndp->pending_mac;
struct net_device *ndev = ndp->ndev.dev;
struct ncsi_rsp_gmcma_pkt *rsp;
int i;
@ -1105,15 +1105,15 @@ static int ncsi_rsp_handler_gmcma(struct ncsi_request *nr)
rsp->addresses[i][4], rsp->addresses[i][5]);
}
saddr->sa_family = ndev->type;
saddr->ss_family = ndev->type;
for (i = 0; i < rsp->address_count; i++) {
if (!is_valid_ether_addr(rsp->addresses[i])) {
netdev_warn(ndev, "NCSI: Unable to assign %pM to device\n",
rsp->addresses[i]);
continue;
}
memcpy(saddr->sa_data, rsp->addresses[i], ETH_ALEN);
netdev_warn(ndev, "NCSI: Will set MAC address to %pM\n", saddr->sa_data);
memcpy(saddr->__data, rsp->addresses[i], ETH_ALEN);
netdev_warn(ndev, "NCSI: Will set MAC address to %pM\n", saddr->__data);
break;
}