shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-03-25 12:00:22 +09:00
Code Issues Packages Projects Releases Wiki Activity

wifi: iwlwifi: yoyo: skip dump correctly on hw error

Browse Source 
[ Upstream commit 11195ab0d6 ]

When NIC is in a bad state, reading data will return 28 bits as
0xa5a5a5a and the lowest 4 bits are not fixed value.

Mask these bits in a few places to skip the dump correctly.

Fixes: 89639e06d0 ("iwlwifi: yoyo: support for new DBGI_SRAM region")
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230413213309.df6c0663179d.I36d8487b2419c6fefa65e5514855d94327c3b1eb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daniel Gabay
2023-04-13 21:40:33 +03:00
committed by Greg Kroah-Hartman
parent 34222897e0
commit 4636c35b7e
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/intel/iwlwifi/fw/dbg.c
View File

@@ -1022,7 +1022,7 @@ iwl_dump_ini_prph_mac_iter(struct iwl_fw_runtime *fwrt,
range->range_data_size = reg->dev_addr.size;
for (i = 0; i < le32_to_cpu(reg->dev_addr.size); i += 4) {
prph_val = iwl_read_prph(fwrt->trans, addr + i);
if (prph_val == 0x5a5a5a5a)
if ((prph_val & ~0xf) == 0xa5a5a5a0)
return -EBUSY;
*val++ = cpu_to_le32(prph_val);
}
@@ -1536,7 +1536,7 @@ iwl_dump_ini_dbgi_sram_iter(struct iwl_fw_runtime *fwrt,
prph_data = iwl_read_prph(fwrt->trans, (i % 2) ?
DBGI_SRAM_TARGET_ACCESS_RDATA_MSB :
DBGI_SRAM_TARGET_ACCESS_RDATA_LSB);
if (prph_data == 0x5a5a5a5a) {
if ((prph_data & ~0xf) == 0xa5a5a5a0) {
iwl_trans_release_nic_access(fwrt->trans);
return -EBUSY;
}