wifi: mwifiex: mark a variable unused

We need to read a value from the device to wake it, but if it
succeeds we don't really care about it. Mark the variable to
avoid a compiler warning.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220904212910.5d67f55178a1.If0789ab326935896e5886fa06dbb9ef0da6c0b41@changeid

diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index f7f9277602a5e0ce7049e30a086f42b18ded231c..5dcf61761a165ae0d1b9c19cd84f4e740c47a09a 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -644,7 +644,7 @@ static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
 {
        struct pcie_service_card *card = adapter->card;
        const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
-       int retval;
+       int retval __maybe_unused;
 
        mwifiex_dbg(adapter, EVENT,
                    "event: Wakeup device...\n");