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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2013-01-09 11:37:59 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-01-16 14:18:56 +0100 |
| commit | 01387ffd19f37b4026fd0e4c32260bc25f6469d4 (patch) | |
| tree | 194681d0eb77facf9c74a463ecbb1d1dc054b4b0 | |
| parent | b1cf1bc160a94f2d56863522982160c9373b8860 (diff) | |
| download | linux-01387ffd19f37b4026fd0e4c32260bc25f6469d4.tar.bz2 | |
iwlwifi: allow to zero SRAM
Sending a NULL pointer to iwl_trans_write_mem allows now
to zero SRAM.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/trans.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index b0d5c715ca1e..55a140ade5a7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -391,7 +391,8 @@ struct iwl_trans; * @read_prph: read a DWORD from a periphery register * @write_prph: write a DWORD to a periphery register * @read_mem: read device's SRAM in DWORD - * @write_mem: write device's SRAM in DWORD + * @write_mem: write device's SRAM in DWORD. If %buf is %NULL, then the memory + * will be zeroed. * @configure: configure parameters required by the transport layer from * the op_mode. May be called several times before start_fw, can't be * called after that. diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index 2de5770de64b..4028c03eff5f 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -815,7 +815,8 @@ static int iwl_trans_pcie_write_mem(struct iwl_trans *trans, u32 addr, if (iwl_trans_grab_nic_access(trans, false)) { iwl_write32(trans, HBUS_TARG_MEM_WADDR, addr); for (offs = 0; offs < dwords; offs++) - iwl_write32(trans, HBUS_TARG_MEM_WDAT, vals[offs]); + iwl_write32(trans, HBUS_TARG_MEM_WDAT, + vals ? vals[offs] : 0); iwl_trans_release_nic_access(trans); } else { ret = -EBUSY; |