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SubjectRe: [PATCH v3 5/5] firmware: fix fw cache to avoid usermode helper on suspend
On Wed, Aug 31, 2016 at 09:03:53AM +0200, Daniel Wagner wrote:
> Hi Luis,
>
> On 08/24/2016 02:45 AM, mcgrof@kernel.org wrote:
> >diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
> >index 22d1760a4278..dca4f9cbf4db 100644
> >--- a/drivers/base/firmware_class.c
> >+++ b/drivers/base/firmware_class.c
> >@@ -1412,7 +1412,7 @@ static int cache_firmware(const char *fw_name)
> >
> > pr_debug("%s: %s\n", __func__, fw_name);
> >
> >- ret = request_firmware(&fw, fw_name, NULL);
> >+ ret = request_firmware_direct(&fw, fw_name, NULL);
> > if (!ret)
> > kfree(fw);
> >
> >
>
> While you are at it you should kill this here as well:
>
> @@ -1622,7 +1637,6 @@ static void __device_uncache_fw_images(void)
> static void device_cache_fw_images(void)
> {
> struct firmware_cache *fwc = &fw_cache;
> - int old_timeout;
> DEFINE_WAIT(wait);
>
> pr_debug("%s\n", __func__);
> @@ -1630,17 +1644,6 @@ static void device_cache_fw_images(void)
> /* cancel uncache work */
> cancel_delayed_work_sync(&fwc->work);
>
> - /*
> - * use small loading timeout for caching devices' firmware
> - * because all these firmware images have been loaded
> - * successfully at lease once, also system is ready for
> - * completing firmware loading now. The maximum size of
> - * firmware in current distributions is about 2M bytes,
> - * so 10 secs should be enough.
> - */
> - old_timeout = loading_timeout;
> - loading_timeout = 10;
> -
> mutex_lock(&fw_lock);
> fwc->state = FW_LOADER_START_CACHE;
> dpm_for_each_dev(NULL, dev_cache_fw_image);
> @@ -1648,8 +1651,6 @@ static void device_cache_fw_images(void)
>
> /* wait for completion of caching firmware for all devices */
> async_synchronize_full_domain(&fw_cache_domain);
> -
> - loading_timeout = old_timeout;

You're right, thanks!

Luis

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