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    • Reinette Chatre's avatar
      iwlwifi: rely on API version read from firmware · a0987a8d
      Reinette Chatre authored
      
      
      This adds the infrastructure to support older firmware APIs.
      The API version number is stored as part of the filename, we first try to
      load the most recent firmware and progressively try lower versions.
      The API version is also read from the firmware self and stored as part
      of the iwl_priv structure. Only firmware that is supported by driver will
      be loaded. The version number read from firmware is compared
      to supported versions in the driver not the API version used as part of
      filename.
      
      An example using this new infrastrucure:
         if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
              Driver interacts with Firmware API version >= 2.
         } else {
              Driver interacts with Firmware API version 1.
         }
      Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      a0987a8d