Alan
On 3/20/2017 1:34 PM, Alan Tull wrote:
On Mon, Mar 20, 2017 at 1:00 PM, Alan Tull <delicious.qui...@gmail.com> wrote:+int +stream_firmware(const struct firmware **firmware_p, const char *name, + struct device *device, size_t offset, size_t length) +{ + size_t ret; + + /* Need to pin this module until return */ + __module_get(THIS_MODULE); + ret = _stream_firmware(firmware_p, name, device, NULL, 0, + FW_OPT_UEVENT | FW_OPT_NO_WARN, offset, length);IIUC, here you are setting size == 0 and buf == NULL to prevent _request_firmware_prepare from attempting to load from built in firmware. So three of the parameters buf, size, and opt_flags are fixed and don't need to be passed to _stream_firmware().
Sure.
Alternatively, I wonder how hard it would be to code this so that the streaming interface will fall back and successfully get the built in or cached firmware if it exists and stream it out in PAGE_SIZE chunks.
That's an interesting idea, I will try it out and submit patch for review later. On another hand, if the kernel already cache the whole firmware image, why should we use streaming instead of regular request_firmware?
Alan Tull -- To unsubscribe from this list: send the line "unsubscribe linux-fpga" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
