diff options
| author | Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> | 2025-03-13 00:22:25 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2025-03-18 09:51:24 +0100 |
| commit | 4b8130a722eb3634a8cde1e8cb1b113e488df5ac (patch) | |
| tree | 222e78b0fd37b427bd67b9cfa663de298790d354 | |
| parent | d4c6ca39d6661c7877c3012db7ac1e4714732a71 (diff) | |
wifi: iwlwifi: mld: Add support for WIPHY_DEBUGFS_READ_FILE_OPS_MLD macro
Introduced the WIPHY_DEBUGFS_READ_FILE_OPS_MLD macro to enable reading
data from the driver while holding the wiphy lock.
This will enable read operations with wiphy locked.
Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250313002008.b0ddb6b0a144.I1fab63f2c6f52fea61cc5d7b27775aed58adfd8d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mld/debugfs.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/debugfs.h b/drivers/net/wireless/intel/iwlwifi/mld/debugfs.h index 13d97184a31f..900aaed90775 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/debugfs.h +++ b/drivers/net/wireless/intel/iwlwifi/mld/debugfs.h @@ -121,6 +121,16 @@ static ssize_t __iwl_dbgfs_##name##_write(struct file *file, \ .llseek = generic_file_llseek, \ } +#define WIPHY_DEBUGFS_READ_HANDLER_WRAPPER_MLD(name) \ +static ssize_t iwl_dbgfs_##name##_read_handler(struct wiphy *wiphy, \ + struct file *file, char *buf, \ + size_t count, void *data) \ +{ \ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); \ + struct iwl_mld *mld = IWL_MAC80211_GET_MLD(hw); \ + return iwl_dbgfs_##name##_read(mld, buf, count); \ +} + #define WIPHY_DEBUGFS_WRITE_HANDLER_WRAPPER_MLD(name) \ static ssize_t iwl_dbgfs_##name##_write_handler(struct wiphy *wiphy, \ struct file *file, char *buf, \ @@ -147,6 +157,40 @@ static ssize_t __iwl_dbgfs_##name##_write(struct file *file, \ NULL); \ } +#define WIPHY_DEBUGFS_READ_WRAPPER_MLD(name) \ +WIPHY_DEBUGFS_READ_HANDLER_WRAPPER_MLD(name) \ +static ssize_t __iwl_dbgfs_##name##_read(struct file *file, \ + char __user *user_buf, \ + size_t count, loff_t *ppos) \ +{ \ + struct dbgfs_##name##_data *data = file->private_data; \ + struct iwl_mld *mld = data->arg; \ + \ + if (!data->read_done) { \ + data->read_done = true; \ + data->rlen = wiphy_locked_debugfs_read(mld->wiphy, \ + file, data->buf, sizeof(data->buf), \ + user_buf, count, ppos, \ + iwl_dbgfs_##name##_read_handler, NULL); \ + return data->rlen; \ + } \ + \ + if (data->rlen < 0) \ + return data->rlen; \ + return simple_read_from_buffer(user_buf, count, ppos, \ + data->buf, data->rlen); \ +} + +#define WIPHY_DEBUGFS_READ_FILE_OPS_MLD(name, bufsz) \ + MLD_DEBUGFS_OPEN_WRAPPER(name, bufsz, struct iwl_mld) \ + WIPHY_DEBUGFS_READ_WRAPPER_MLD(name) \ + static const struct file_operations iwl_dbgfs_##name##_ops = { \ + .read = __iwl_dbgfs_##name##_read, \ + .open = _iwl_dbgfs_##name##_open, \ + .llseek = generic_file_llseek, \ + .release = _iwl_dbgfs_release, \ + } + #define WIPHY_DEBUGFS_WRITE_FILE_OPS_MLD(name, bufsz) \ MLD_DEBUGFS_OPEN_WRAPPER(name, bufsz, struct iwl_mld) \ WIPHY_DEBUGFS_WRITE_WRAPPER_MLD(name) \ |