From: Jakub Kicinski <kuba@kernel.org>
Date: Tue, 19 Oct 2021 11:26:04 -0700
Subject: RDMA: Constify netdev->dev_addr accesses
Patch-mainline: v5.16-rc1
Git-commit: fd92213e9af3b8e5cb3b4d3bf925c9baafb46c9e
References: jsc#PED-1494
netdev->dev_addr will become const soon, make sure drivers propagate the
qualifier.
Link: https://lore.kernel.org/r/20211019182604.1441387-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/bnxt_re/qplib_res.c | 2 +-
drivers/infiniband/hw/bnxt_re/qplib_res.h | 2 +-
drivers/infiniband/hw/bnxt_re/qplib_sp.c | 6 +++---
drivers/infiniband/hw/bnxt_re/qplib_sp.h | 5 +++--
drivers/infiniband/hw/hfi1/ipoib_main.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_device.h | 3 ++-
drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 10 +++++-----
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 6 +++---
drivers/infiniband/hw/hns/hns_roce_main.c | 3 ++-
drivers/infiniband/hw/irdma/cm.h | 4 ++--
drivers/infiniband/hw/irdma/hw.c | 7 ++++---
drivers/infiniband/hw/irdma/main.h | 5 +++--
drivers/infiniband/hw/irdma/trace_cm.h | 8 +++++---
drivers/infiniband/hw/irdma/utils.c | 4 ++--
drivers/infiniband/hw/irdma/verbs.c | 2 +-
drivers/infiniband/hw/usnic/usnic_fwd.c | 2 +-
drivers/infiniband/hw/usnic/usnic_fwd.h | 2 +-
17 files changed, 40 insertions(+), 33 deletions(-)
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.c
@@ -573,7 +573,7 @@ fail:
}
/* GUID */
-void bnxt_qplib_get_guid(u8 *dev_addr, u8 *guid)
+void bnxt_qplib_get_guid(const u8 *dev_addr, u8 *guid)
{
u8 mac[ETH_ALEN];
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h
@@ -346,7 +346,7 @@ void bnxt_qplib_free_hwq(struct bnxt_qpl
struct bnxt_qplib_hwq *hwq);
int bnxt_qplib_alloc_init_hwq(struct bnxt_qplib_hwq *hwq,
struct bnxt_qplib_hwq_attr *hwq_attr);
-void bnxt_qplib_get_guid(u8 *dev_addr, u8 *guid);
+void bnxt_qplib_get_guid(const u8 *dev_addr, u8 *guid);
int bnxt_qplib_alloc_pd(struct bnxt_qplib_pd_tbl *pd_tbl,
struct bnxt_qplib_pd *pd);
int bnxt_qplib_dealloc_pd(struct bnxt_qplib_res *res,
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
@@ -287,8 +287,8 @@ int bnxt_qplib_del_sgid(struct bnxt_qpli
}
int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
- struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
- bool update, u32 *index)
+ struct bnxt_qplib_gid *gid, const u8 *smac,
+ u16 vlan_id, bool update, u32 *index)
{
struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
struct bnxt_qplib_res,
@@ -379,7 +379,7 @@ int bnxt_qplib_add_sgid(struct bnxt_qpli
int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
struct bnxt_qplib_gid *gid, u16 gid_idx,
- u8 *smac)
+ const u8 *smac)
{
struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
struct bnxt_qplib_res,
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
@@ -250,10 +250,11 @@ int bnxt_qplib_get_sgid(struct bnxt_qpli
int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
struct bnxt_qplib_gid *gid, u16 vlan_id, bool update);
int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
- struct bnxt_qplib_gid *gid, u8 *mac, u16 vlan_id,
+ struct bnxt_qplib_gid *gid, const u8 *mac, u16 vlan_id,
bool update, u32 *index);
int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
- struct bnxt_qplib_gid *gid, u16 gid_idx, u8 *smac);
+ struct bnxt_qplib_gid *gid, u16 gid_idx,
+ const u8 *smac);
int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
u16 *pkey);
--- a/drivers/infiniband/hw/hfi1/ipoib_main.c
+++ b/drivers/infiniband/hw/hfi1/ipoib_main.c
@@ -11,7 +11,7 @@
#include "ipoib.h"
#include "hfi.h"
-static u32 qpn_from_mac(u8 *mac_arr)
+static u32 qpn_from_mac(const u8 *mac_arr)
{
return (u32)mac_arr[1] << 16 | mac_arr[2] << 8 | mac_arr[3];
}
--- a/drivers/infiniband/hw/hns/hns_roce_device.h
+++ b/drivers/infiniband/hw/hns/hns_roce_device.h
@@ -898,7 +898,8 @@ struct hns_roce_hw {
bool (*chk_mbox_avail)(struct hns_roce_dev *hr_dev, bool *is_busy);
int (*set_gid)(struct hns_roce_dev *hr_dev, u32 port, int gid_index,
const union ib_gid *gid, const struct ib_gid_attr *attr);
- int (*set_mac)(struct hns_roce_dev *hr_dev, u8 phy_port, u8 *addr);
+ int (*set_mac)(struct hns_roce_dev *hr_dev, u8 phy_port,
+ const u8 *addr);
void (*set_mtu)(struct hns_roce_dev *hr_dev, u8 phy_port,
enum ib_mtu mtu);
int (*write_mtpt)(struct hns_roce_dev *hr_dev, void *mb_buf,
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -90,11 +90,11 @@ static int hns_roce_v1_post_send(struct
unsigned long flags = 0;
void *wqe = NULL;
__le32 doorbell[2];
+ const u8 *smac;
int ret = 0;
int loopback;
u32 wqe_idx;
int nreq;
- u8 *smac;
if (unlikely(ibqp->qp_type != IB_QPT_GSI &&
ibqp->qp_type != IB_QPT_RC)) {
@@ -154,7 +154,7 @@ static int hns_roce_v1_post_send(struct
UD_SEND_WQE_U32_8_DMAC_5_S,
ah->av.mac[5]);
- smac = (u8 *)hr_dev->dev_addr[qp->port];
+ smac = (const u8 *)hr_dev->dev_addr[qp->port];
loopback = ether_addr_equal_unaligned(ah->av.mac,
smac) ? 1 : 0;
roce_set_bit(ud_sq_wqe->u32_8,
@@ -1782,7 +1782,7 @@ static int hns_roce_v1_set_gid(struct hn
}
static int hns_roce_v1_set_mac(struct hns_roce_dev *hr_dev, u8 phy_port,
- u8 *addr)
+ const u8 *addr)
{
u32 reg_smac_l;
u16 reg_smac_h;
@@ -2743,12 +2743,12 @@ static int hns_roce_v1_m_qp(struct ib_qp
__le32 doorbell[2] = {0};
u64 *mtts_2 = NULL;
int ret = -EINVAL;
+ const u8 *smac;
u64 sq_ba = 0;
u64 rq_ba = 0;
u32 port;
u32 port_num;
u8 *dmac;
- u8 *smac;
if (!check_qp_state(cur_state, new_state)) {
ibdev_err(ibqp->device,
@@ -2947,7 +2947,7 @@ static int hns_roce_v1_m_qp(struct ib_qp
port = (attr_mask & IB_QP_PORT) ? (attr->port_num - 1) :
hr_qp->port;
- smac = (u8 *)hr_dev->dev_addr[port];
+ smac = (const u8 *)hr_dev->dev_addr[port];
/* when dmac equals smac or loop_idc is 1, it should loopback */
if (ether_addr_equal_unaligned(dmac, smac) ||
hr_dev->loop_idc == 0x1)
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -2982,7 +2982,7 @@ static int hns_roce_v2_set_gid(struct hn
}
static int hns_roce_v2_set_mac(struct hns_roce_dev *hr_dev, u8 phy_port,
- u8 *addr)
+ const u8 *addr)
{
struct hns_roce_cmq_desc desc;
struct hns_roce_cfg_smac_tb *smac_tb =
@@ -4308,10 +4308,10 @@ static int modify_qp_init_to_rtr(struct
dma_addr_t trrl_ba;
dma_addr_t irrl_ba;
enum ib_mtu ib_mtu;
+ const u8 *smac;
u8 lp_pktn_ini;
u64 *mtts;
u8 *dmac;
- u8 *smac;
u32 port;
int mtu;
int ret;
@@ -4364,7 +4364,7 @@ static int modify_qp_init_to_rtr(struct
port = (attr_mask & IB_QP_PORT) ? (attr->port_num - 1) : hr_qp->port;
- smac = (u8 *)hr_dev->dev_addr[port];
+ smac = (const u8 *)hr_dev->dev_addr[port];
dmac = (u8 *)attr->ah_attr.roce.dmac;
/* when dmac equals smac or loop_idc is 1, it should loopback */
if (ether_addr_equal_unaligned(dmac, smac) ||
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -42,7 +42,8 @@
#include "hns_roce_device.h"
#include "hns_roce_hem.h"
-static int hns_roce_set_mac(struct hns_roce_dev *hr_dev, u32 port, u8 *addr)
+static int hns_roce_set_mac(struct hns_roce_dev *hr_dev, u32 port,
+ const u8 *addr)
{
u8 phy_port;
u32 i;
--- a/drivers/infiniband/hw/irdma/cm.h
+++ b/drivers/infiniband/hw/irdma/cm.h
@@ -389,7 +389,7 @@ int irdma_reject(struct iw_cm_id *cm_id,
int irdma_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
int irdma_create_listen(struct iw_cm_id *cm_id, int backlog);
int irdma_destroy_listen(struct iw_cm_id *cm_id);
-int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, u8 *mac);
+int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, const u8 *mac);
void irdma_cm_teardown_connections(struct irdma_device *iwdev, u32 *ipaddr,
struct irdma_cm_info *nfo,
bool disconnect_all);
@@ -398,7 +398,7 @@ int irdma_cm_stop(struct irdma_device *d
bool irdma_ipv4_is_lpb(u32 loc_addr, u32 rem_addr);
bool irdma_ipv6_is_lpb(u32 *loc_addr, u32 *rem_addr);
int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4,
- u8 *mac_addr, u32 action);
+ const u8 *mac_addr, u32 action);
void irdma_if_notify(struct irdma_device *iwdev, struct net_device *netdev,
u32 *ipaddr, bool ipv4, bool ifup);
bool irdma_port_in_use(struct irdma_cm_core *cm_core, u16 port);
--- a/drivers/infiniband/hw/irdma/hw.c
+++ b/drivers/infiniband/hw/irdma/hw.c
@@ -1057,7 +1057,7 @@ static enum irdma_status_code irdma_allo
&iwdev->mac_ip_table_idx);
if (!status) {
status = irdma_add_local_mac_entry(iwdev->rf,
- (u8 *)iwdev->netdev->dev_addr,
+ (const u8 *)iwdev->netdev->dev_addr,
(u8)iwdev->mac_ip_table_idx);
if (status)
irdma_del_local_mac_entry(iwdev->rf,
@@ -2191,7 +2191,7 @@ void irdma_del_local_mac_entry(struct ir
* @mac_addr: pointer to mac address
* @idx: the index of the mac ip address to add
*/
-int irdma_add_local_mac_entry(struct irdma_pci_f *rf, u8 *mac_addr, u16 idx)
+int irdma_add_local_mac_entry(struct irdma_pci_f *rf, const u8 *mac_addr, u16 idx)
{
struct irdma_local_mac_entry_info *info;
struct irdma_cqp *iwcqp = &rf->cqp;
@@ -2362,7 +2362,8 @@ void irdma_del_apbvt(struct irdma_device
* @ipv4: flag inicating IPv4
* @action: add, delete or modify
*/
-void irdma_manage_arp_cache(struct irdma_pci_f *rf, unsigned char *mac_addr,
+void irdma_manage_arp_cache(struct irdma_pci_f *rf,
+ const unsigned char *mac_addr,
u32 *ip_addr, bool ipv4, u32 action)
{
struct irdma_add_arp_cache_entry_info *info;
--- a/drivers/infiniband/hw/irdma/main.h
+++ b/drivers/infiniband/hw/irdma/main.h
@@ -467,7 +467,8 @@ void irdma_qp_rem_ref(struct ib_qp *ibqp
void irdma_free_lsmm_rsrc(struct irdma_qp *iwqp);
struct ib_qp *irdma_get_qp(struct ib_device *ibdev, int qpn);
void irdma_flush_wqes(struct irdma_qp *iwqp, u32 flush_mask);
-void irdma_manage_arp_cache(struct irdma_pci_f *rf, unsigned char *mac_addr,
+void irdma_manage_arp_cache(struct irdma_pci_f *rf,
+ const unsigned char *mac_addr,
u32 *ip_addr, bool ipv4, u32 action);
struct irdma_apbvt_entry *irdma_add_apbvt(struct irdma_device *iwdev, u16 port);
void irdma_del_apbvt(struct irdma_device *iwdev,
@@ -479,7 +480,7 @@ void irdma_free_cqp_request(struct irdma
void irdma_put_cqp_request(struct irdma_cqp *cqp,
struct irdma_cqp_request *cqp_request);
int irdma_alloc_local_mac_entry(struct irdma_pci_f *rf, u16 *mac_tbl_idx);
-int irdma_add_local_mac_entry(struct irdma_pci_f *rf, u8 *mac_addr, u16 idx);
+int irdma_add_local_mac_entry(struct irdma_pci_f *rf, const u8 *mac_addr, u16 idx);
void irdma_del_local_mac_entry(struct irdma_pci_f *rf, u16 idx);
u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf);
--- a/drivers/infiniband/hw/irdma/trace_cm.h
+++ b/drivers/infiniband/hw/irdma/trace_cm.h
@@ -144,7 +144,7 @@ DEFINE_EVENT(tos_template, irdma_dcb_tos
DECLARE_EVENT_CLASS(qhash_template,
TP_PROTO(struct irdma_device *iwdev,
struct irdma_cm_listener *listener,
- char *dev_addr),
+ const char *dev_addr),
TP_ARGS(iwdev, listener, dev_addr),
TP_STRUCT__entry(__field(struct irdma_device *, iwdev)
__field(u16, lport)
@@ -173,12 +173,14 @@ DECLARE_EVENT_CLASS(qhash_template,
DEFINE_EVENT(qhash_template, irdma_add_mqh_6,
TP_PROTO(struct irdma_device *iwdev,
- struct irdma_cm_listener *listener, char *dev_addr),
+ struct irdma_cm_listener *listener,
+ const char *dev_addr),
TP_ARGS(iwdev, listener, dev_addr));
DEFINE_EVENT(qhash_template, irdma_add_mqh_4,
TP_PROTO(struct irdma_device *iwdev,
- struct irdma_cm_listener *listener, char *dev_addr),
+ struct irdma_cm_listener *listener,
+ const char *dev_addr),
TP_ARGS(iwdev, listener, dev_addr));
TRACE_EVENT(irdma_addr_resolve,
--- a/drivers/infiniband/hw/irdma/utils.c
+++ b/drivers/infiniband/hw/irdma/utils.c
@@ -11,7 +11,7 @@
* @action: modify, delete or add
*/
int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4,
- u8 *mac_addr, u32 action)
+ const u8 *mac_addr, u32 action)
{
unsigned long flags;
int arp_index;
@@ -77,7 +77,7 @@ int irdma_arp_table(struct irdma_pci_f *
* @ipv4: IPv4 flag
* @mac: MAC address
*/
-int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, u8 *mac)
+int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, const u8 *mac)
{
int arpidx;
--- a/drivers/infiniband/hw/irdma/verbs.c
+++ b/drivers/infiniband/hw/irdma/verbs.c
@@ -4330,7 +4330,7 @@ static enum rdma_link_layer irdma_get_li
static __be64 irdma_mac_to_guid(struct net_device *ndev)
{
- unsigned char *mac = ndev->dev_addr;
+ const unsigned char *mac = ndev->dev_addr;
__be64 guid;
unsigned char *dst = (unsigned char *)&guid;
--- a/drivers/infiniband/hw/usnic/usnic_fwd.c
+++ b/drivers/infiniband/hw/usnic/usnic_fwd.c
@@ -103,7 +103,7 @@ void usnic_fwd_dev_free(struct usnic_fwd
kfree(ufdev);
}
-void usnic_fwd_set_mac(struct usnic_fwd_dev *ufdev, char mac[ETH_ALEN])
+void usnic_fwd_set_mac(struct usnic_fwd_dev *ufdev, const char mac[ETH_ALEN])
{
spin_lock(&ufdev->lock);
memcpy(&ufdev->mac, mac, sizeof(ufdev->mac));
--- a/drivers/infiniband/hw/usnic/usnic_fwd.h
+++ b/drivers/infiniband/hw/usnic/usnic_fwd.h
@@ -74,7 +74,7 @@ struct usnic_filter_action {
struct usnic_fwd_dev *usnic_fwd_dev_alloc(struct pci_dev *pdev);
void usnic_fwd_dev_free(struct usnic_fwd_dev *ufdev);
-void usnic_fwd_set_mac(struct usnic_fwd_dev *ufdev, char mac[ETH_ALEN]);
+void usnic_fwd_set_mac(struct usnic_fwd_dev *ufdev, const char mac[ETH_ALEN]);
void usnic_fwd_add_ipaddr(struct usnic_fwd_dev *ufdev, __be32 inaddr);
void usnic_fwd_del_ipaddr(struct usnic_fwd_dev *ufdev);
void usnic_fwd_carrier_up(struct usnic_fwd_dev *ufdev);