shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 03:40:35 +09:00
Code Issues Packages Projects Releases Wiki Activity

Revert "iwlwifi: mvm: fix scan config command size"

Browse Source 
commit 205608749e upstream.

Since v5.4-rc1 was released, iwlwifi started throwing errors when scan
commands were sent to the firmware with certain devices (depending on
the OTP burned in the device, which contains the list of available
channels).  For instance:

iwlwifi 0000:00:14.3: FW error in SYNC CMD SCAN_CFG_CMD

This bug was reported in the ArchLinux bug tracker:
https://bugs.archlinux.org/task/64703

And also in a specific case in bugzilla, when the lar_disabled option
was set: https://bugzilla.kernel.org/show_bug.cgi?id=205193

Revert the commit that introduced this error, by using the number of
channels from the OTP instead of the number of channels that is
specified in the FW TLV that tells us how many channels it supports.

This reverts commit 06eb547c4a.

Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Mehmet Akif Tasova <makiftasova@gmail.com>
[ Luca: reworded the commit message a bit. ]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mehmet Akif Tasova
2019-12-13 23:35:10 +03:00
committed by Greg Kroah-Hartman
parent 7cf7a7d025
commit 4e7d8cd6a1
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/intel/iwlwifi/mvm/scan.c
View File

@@ -1220,7 +1220,7 @@ static int iwl_mvm_legacy_config_scan(struct iwl_mvm *mvm)
cmd_size = sizeof(struct iwl_scan_config_v2);
else
cmd_size = sizeof(struct iwl_scan_config_v1);
cmd_size += num_channels;
cmd_size += mvm->fw->ucode_capa.n_scan_channels;
cfg = kzalloc(cmd_size, GFP_KERNEL);
if (!cfg)