diff options
| author | Daniel Gabay <daniel.gabay@intel.com> | 2023-04-13 21:40:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-11 23:03:23 +0900 |
| commit | 7c31103f7f3018e3eca05d957faf9ab51c3ae068 (patch) | |
| tree | b32629c66ef9d5102cf59b66bb0bd307bfce37ef /drivers | |
| parent | 164acf216c181b92591c8a75bd7e314b17532c91 (diff) | |
| download | linux-7c31103f7f3018e3eca05d957faf9ab51c3ae068.tar.gz | |
wifi: iwlwifi: yoyo: skip dump correctly on hw error
[ Upstream commit 11195ab0d6f3202cf7af1a4c69570f59c377d8ad ]
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: 89639e06d0f3 ("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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c index abf49022edbe..bde6f0764a53 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c @@ -1038,7 +1038,7 @@ 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); } @@ -1562,7 +1562,7 @@ iwl_dump_ini_dbgi_sram_iter(struct iwl_fw_runtime *fwrt, prph_data = iwl_read_prph_no_grab(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; } |