diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2016-12-07 07:36:46 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-12-30 13:28:40 +0200 |
| commit | ae3cf476450674dcba4239f144d310c472a08b5d (patch) | |
| tree | ad0d64f9ba1b72229728ba204815fb260f24b2fb | |
| parent | d7864cf2123503b83880d4b8d5786cb5641d64d8 (diff) | |
iwlegacy: make il3945_mac_ops __ro_after_init
There's no need for this to be only __read_mostly, since
it's only written in a single way depending on the module
parameter, so that can be moved into the module's __init
function, and the ops can be __ro_after_init.
This is a little bit safer since it means the ops can't
be overwritten (accidentally or otherwise), which would
otherwise cause an arbitrary function or bad pointer to
be called.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/intel/iwlegacy/3945-mac.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/net/wireless/intel/iwlegacy/3945-mac.c b/drivers/net/wireless/intel/iwlegacy/3945-mac.c index 466912eb2d87..e8e65115feba 100644 --- a/drivers/net/wireless/intel/iwlegacy/3945-mac.c +++ b/drivers/net/wireless/intel/iwlegacy/3945-mac.c @@ -3469,7 +3469,7 @@ static struct attribute_group il3945_attribute_group = { .attrs = il3945_sysfs_entries, }; -static struct ieee80211_ops il3945_mac_ops __read_mostly = { +static struct ieee80211_ops il3945_mac_ops __ro_after_init = { .tx = il3945_mac_tx, .start = il3945_mac_start, .stop = il3945_mac_stop, @@ -3627,15 +3627,6 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) il->cmd_queue = IL39_CMD_QUEUE_NUM; - /* - * Disabling hardware scan means that mac80211 will perform scans - * "the hard way", rather than using device's scan. - */ - if (il3945_mod_params.disable_hw_scan) { - D_INFO("Disabling hw_scan\n"); - il3945_mac_ops.hw_scan = NULL; - } - D_INFO("*** LOAD DRIVER ***\n"); il->cfg = cfg; il->ops = &il3945_ops; @@ -3913,6 +3904,15 @@ il3945_init(void) pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); pr_info(DRV_COPYRIGHT "\n"); + /* + * Disabling hardware scan means that mac80211 will perform scans + * "the hard way", rather than using device's scan. + */ + if (il3945_mod_params.disable_hw_scan) { + pr_info("hw_scan is disabled\n"); + il3945_mac_ops.hw_scan = NULL; + } + ret = il3945_rate_control_register(); if (ret) { pr_err("Unable to register rate control algorithm: %d\n", ret); |