iwlwifi: dbg: mark a variable __maybe_unused

If CONFIG_IWLWIFI_DEBUGFS is not set, the variable is assigned
but not checked, resulting in a compiler warning. Suppress it,
we need the variable for the debugfs-enabled case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200425130140.485f886f5a6c.I8a91c560c26cced33b15d8419caebb53a9abcc2d@changeid

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 04de7688884d90596baa36ef47dfa985059f3380..2a271aad81062f58d727aa1eacd90ef2a4836934 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -2760,7 +2760,7 @@ void iwl_fw_dbg_stop_restart_recording(struct iwl_fw_runtime *fwrt,
                                       struct iwl_fw_dbg_params *params,
                                       bool stop)
 {
-       int ret = 0;
+       int ret __maybe_unused = 0;
 
        if (test_bit(STATUS_FW_ERROR, &fwrt->trans->status))
                return;