From: Johannes Berg Date: Sun, 24 Oct 2021 13:55:05 +0000 (+0300) Subject: iwlwifi: pcie: simplify iwl_pci_find_dev_info() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3f7320428fa41a4c8be9c6f3d0cc06beeb0b3df8;p=linux.git iwlwifi: pcie: simplify iwl_pci_find_dev_info() We currently match the list of devices from the start to the end, but then find the *last* match, so we need to look at each and every entry. We don't want to change the semantics ("most generic entry must come first"), so just change the order of matching to be back-to-front, then we can break out once we find a match. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20211024165252.abd85e1391cb.I7681fe90735044cc1c59f120e8591b7ac125535d@changeid Signed-off-by: Luca Coelho --- diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c index 3276f04cfd607..c574f041f0969 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c @@ -1339,10 +1339,9 @@ iwl_pci_find_dev_info(u16 device, u16 subsystem_device, u16 mac_type, u8 mac_step, u16 rf_type, u8 cdb, u8 rf_id, u8 no_160, u8 cores) { - const struct iwl_dev_info *ret = NULL; int i; - for (i = 0; i < ARRAY_SIZE(iwl_dev_info_table); i++) { + for (i = ARRAY_SIZE(iwl_dev_info_table) - 1; i >= 0; i--) { const struct iwl_dev_info *dev_info = &iwl_dev_info_table[i]; if (dev_info->device != (u16)IWL_CFG_ANY && @@ -1381,10 +1380,10 @@ iwl_pci_find_dev_info(u16 device, u16 subsystem_device, dev_info->cores != cores) continue; - ret = dev_info; + return dev_info; } - return ret; + return NULL; } static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)