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path: root/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
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Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c')
-rw-r--r--drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c64
1 files changed, 34 insertions, 30 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
index ffa243e2e2d0..05f66ab13bed 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
@@ -1,17 +1,6 @@
+// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2016 Broadcom
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/netdevice.h>
#include <linux/gcd.h>
@@ -68,6 +57,10 @@ static int brcmf_pno_remove_request(struct brcmf_pno_info *pi, u64 reqid)
mutex_lock(&pi->req_lock);
+ /* Nothing to do if we have no requests */
+ if (pi->n_reqs == 0)
+ goto done;
+
/* find request */
for (i = 0; i < pi->n_reqs; i++) {
if (pi->reqs[i]->reqid == reqid)
@@ -109,6 +102,7 @@ static int brcmf_pno_channel_config(struct brcmf_if *ifp,
static int brcmf_pno_config(struct brcmf_if *ifp, u32 scan_freq,
u32 mscan, u32 bestn)
{
+ struct brcmf_pub *drvr = ifp->drvr;
struct brcmf_pno_param_le pfn_param;
u16 flags;
u32 pfnmem;
@@ -132,13 +126,13 @@ static int brcmf_pno_config(struct brcmf_if *ifp, u32 scan_freq,
/* set bestn in firmware */
err = brcmf_fil_iovar_int_set(ifp, "pfnmem", pfnmem);
if (err < 0) {
- brcmf_err("failed to set pfnmem\n");
+ bphy_err(drvr, "failed to set pfnmem\n");
goto exit;
}
/* get max mscan which the firmware supports */
err = brcmf_fil_iovar_int_get(ifp, "pfnmem", &pfnmem);
if (err < 0) {
- brcmf_err("failed to get pfnmem\n");
+ bphy_err(drvr, "failed to get pfnmem\n");
goto exit;
}
mscan = min_t(u32, mscan, pfnmem);
@@ -152,7 +146,7 @@ static int brcmf_pno_config(struct brcmf_if *ifp, u32 scan_freq,
err = brcmf_fil_iovar_data_set(ifp, "pfn_set", &pfn_param,
sizeof(pfn_param));
if (err)
- brcmf_err("pfn_set failed, err=%d\n", err);
+ bphy_err(drvr, "pfn_set failed, err=%d\n", err);
exit:
return err;
@@ -160,15 +154,16 @@ exit:
static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
{
+ struct brcmf_pub *drvr = ifp->drvr;
struct brcmf_pno_macaddr_le pfn_mac;
u8 *mac_addr = NULL;
u8 *mac_mask = NULL;
- int err, i;
+ int err, i, ri;
- for (i = 0; i < pi->n_reqs; i++)
- if (pi->reqs[i]->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
- mac_addr = pi->reqs[i]->mac_addr;
- mac_mask = pi->reqs[i]->mac_addr_mask;
+ for (ri = 0; ri < pi->n_reqs; ri++)
+ if (pi->reqs[ri]->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+ mac_addr = pi->reqs[ri]->mac_addr;
+ mac_mask = pi->reqs[ri]->mac_addr_mask;
break;
}
@@ -182,7 +177,7 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
memcpy(pfn_mac.mac, mac_addr, ETH_ALEN);
for (i = 0; i < ETH_ALEN; i++) {
pfn_mac.mac[i] &= mac_mask[i];
- pfn_mac.mac[i] |= get_random_int() & ~(mac_mask[i]);
+ pfn_mac.mac[i] |= get_random_u8() & ~(mac_mask[i]);
}
/* Clear multi bit */
pfn_mac.mac[0] &= 0xFE;
@@ -190,11 +185,11 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
pfn_mac.mac[0] |= 0x02;
brcmf_dbg(SCAN, "enabling random mac: reqid=%llu mac=%pM\n",
- pi->reqs[i]->reqid, pfn_mac.mac);
+ pi->reqs[ri]->reqid, pfn_mac.mac);
err = brcmf_fil_iovar_data_set(ifp, "pfn_macaddr", &pfn_mac,
sizeof(pfn_mac));
if (err)
- brcmf_err("pfn_macaddr failed, err=%d\n", err);
+ bphy_err(drvr, "pfn_macaddr failed, err=%d\n", err);
return err;
}
@@ -202,6 +197,7 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
static int brcmf_pno_add_ssid(struct brcmf_if *ifp, struct cfg80211_ssid *ssid,
bool active)
{
+ struct brcmf_pub *drvr = ifp->drvr;
struct brcmf_pno_net_param_le pfn;
int err;
@@ -218,12 +214,13 @@ static int brcmf_pno_add_ssid(struct brcmf_if *ifp, struct cfg80211_ssid *ssid,
brcmf_dbg(SCAN, "adding ssid=%.32s (active=%d)\n", ssid->ssid, active);
err = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn, sizeof(pfn));
if (err < 0)
- brcmf_err("adding failed: err=%d\n", err);
+ bphy_err(drvr, "adding failed: err=%d\n", err);
return err;
}
static int brcmf_pno_add_bssid(struct brcmf_if *ifp, const u8 *bssid)
{
+ struct brcmf_pub *drvr = ifp->drvr;
struct brcmf_pno_bssid_le bssid_cfg;
int err;
@@ -234,7 +231,7 @@ static int brcmf_pno_add_bssid(struct brcmf_if *ifp, const u8 *bssid)
err = brcmf_fil_iovar_data_set(ifp, "pfn_add_bssid", &bssid_cfg,
sizeof(bssid_cfg));
if (err < 0)
- brcmf_err("adding failed: err=%d\n", err);
+ bphy_err(drvr, "adding failed: err=%d\n", err);
return err;
}
@@ -258,6 +255,7 @@ static bool brcmf_is_ssid_active(struct cfg80211_ssid *ssid,
static int brcmf_pno_clean(struct brcmf_if *ifp)
{
+ struct brcmf_pub *drvr = ifp->drvr;
int ret;
/* Disable pfn */
@@ -267,7 +265,7 @@ static int brcmf_pno_clean(struct brcmf_if *ifp)
ret = brcmf_fil_iovar_data_set(ifp, "pfnclear", NULL, 0);
}
if (ret < 0)
- brcmf_err("failed code %d\n", ret);
+ bphy_err(drvr, "failed code %d\n", ret);
return ret;
}
@@ -392,6 +390,7 @@ static int brcmf_pno_config_networks(struct brcmf_if *ifp,
static int brcmf_pno_config_sched_scans(struct brcmf_if *ifp)
{
+ struct brcmf_pub *drvr = ifp->drvr;
struct brcmf_pno_info *pi;
struct brcmf_gscan_config *gscan_cfg;
struct brcmf_gscan_bucket_config *buckets;
@@ -406,7 +405,7 @@ static int brcmf_pno_config_sched_scans(struct brcmf_if *ifp)
if (n_buckets < 0)
return n_buckets;
- gsz = sizeof(*gscan_cfg) + (n_buckets - 1) * sizeof(*buckets);
+ gsz = struct_size(gscan_cfg, bucket, n_buckets);
gscan_cfg = kzalloc(gsz, GFP_KERNEL);
if (!gscan_cfg) {
err = -ENOMEM;
@@ -416,7 +415,7 @@ static int brcmf_pno_config_sched_scans(struct brcmf_if *ifp)
/* clean up everything */
err = brcmf_pno_clean(ifp);
if (err < 0) {
- brcmf_err("failed error=%d\n", err);
+ bphy_err(drvr, "failed error=%d\n", err);
goto free_gscan;
}
@@ -435,8 +434,8 @@ static int brcmf_pno_config_sched_scans(struct brcmf_if *ifp)
gscan_cfg->flags = BRCMF_GSCAN_CFG_ALL_BUCKETS_IN_1ST_SCAN;
gscan_cfg->count_of_channel_buckets = n_buckets;
- memcpy(&gscan_cfg->bucket[0], buckets,
- n_buckets * sizeof(*buckets));
+ memcpy(gscan_cfg->bucket, buckets,
+ array_size(n_buckets, sizeof(*buckets)));
err = brcmf_fil_iovar_data_set(ifp, "pfn_gscan_cfg", gscan_cfg, gsz);
@@ -496,6 +495,11 @@ int brcmf_pno_stop_sched_scan(struct brcmf_if *ifp, u64 reqid)
brcmf_dbg(TRACE, "reqid=%llu\n", reqid);
pi = ifp_to_pno(ifp);
+
+ /* No PNO request */
+ if (!pi->n_reqs)
+ return 0;
+
err = brcmf_pno_remove_request(pi, reqid);
if (err)
return err;
generated by cgit (git 2.34.1) at 2025-12-26 09:56:40 +0000