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2b51d8591f
Issues a wmi command to firmware when multicast rate change is received with the new BSS_CHANGED_MCAST_RATE flag. Also fixes the incorrect fixed_rate setting for CCK rates which got introduced with addition of ath10k_rates_rev2 enum. By default the firmware uses 1Mbps and 6Mbps rate for management packets in 2G and 5G bands respectively. But when the user selects different basic rates from the userspace, we need to send the management packets at the lowest basic rate selected by the user. Signed-off-by: Sven Eckelmann <sven@narfation.org>
67 lines
2.4 KiB
Diff
67 lines
2.4 KiB
Diff
From: Sriram R <srirrama@codeaurora.org>
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Date: Wed, 3 Oct 2018 08:43:50 +0530
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Subject: [PATCH] ath10k: fix possible out of bound access of ath10k_rates array
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While using 'ath10k_mac_get_rate_hw_value()' to obtain the hw value
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from the passed bitrate, there is a chance of out of bound array access
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when wrong bitrate is passed. This is fixed by comparing the bitrates
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within the correct size of the ath10k_rates array.
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Fixes commit f279294e9ee2 ("ath10k: add support for configuring management
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packet rate"). Also correction made to some indents used in the above commit.
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Signed-off-by: Sriram R <srirrama@codeaurora.org>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Origin: backport, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34e141eea7dd8525dd1ef7a925459e455b4d307f
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---
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--- a/drivers/net/wireless/ath/ath10k/mac.c
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+++ b/drivers/net/wireless/ath/ath10k/mac.c
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@@ -166,7 +166,7 @@ static int ath10k_mac_get_rate_hw_value(
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if (ath10k_mac_bitrate_is_cck(bitrate))
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hw_value_prefix = WMI_RATE_PREAMBLE_CCK << 6;
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- for (i = 0; i < sizeof(ath10k_rates); i++) {
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+ for (i = 0; i < ARRAY_SIZE(ath10k_rates); i++) {
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if (ath10k_rates[i].bitrate == bitrate)
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return hw_value_prefix | ath10k_rates[i].hw_value;
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}
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@@ -5699,22 +5699,22 @@ static void ath10k_bss_info_changed(stru
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return;
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}
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- sband = ar->hw->wiphy->bands[def.chan->band];
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- basic_rate_idx = ffs(vif->bss_conf.basic_rates) - 1;
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- bitrate = sband->bitrates[basic_rate_idx].bitrate;
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-
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- hw_rate_code = ath10k_mac_get_rate_hw_value(bitrate);
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- if (hw_rate_code < 0) {
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- ath10k_warn(ar, "bitrate not supported %d\n", bitrate);
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- mutex_unlock(&ar->conf_mutex);
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- return;
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- }
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+ sband = ar->hw->wiphy->bands[def.chan->band];
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+ basic_rate_idx = ffs(vif->bss_conf.basic_rates) - 1;
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+ bitrate = sband->bitrates[basic_rate_idx].bitrate;
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+
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+ hw_rate_code = ath10k_mac_get_rate_hw_value(bitrate);
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+ if (hw_rate_code < 0) {
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+ ath10k_warn(ar, "bitrate not supported %d\n", bitrate);
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+ mutex_unlock(&ar->conf_mutex);
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+ return;
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+ }
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- vdev_param = ar->wmi.vdev_param->mgmt_rate;
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- ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
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- hw_rate_code);
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- if (ret)
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- ath10k_warn(ar, "failed to set mgmt tx rate %d\n", ret);
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+ vdev_param = ar->wmi.vdev_param->mgmt_rate;
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+ ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
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+ hw_rate_code);
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+ if (ret)
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+ ath10k_warn(ar, "failed to set mgmt tx rate %d\n", ret);
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}
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mutex_unlock(&ar->conf_mutex);
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