FROMGIT: firmware_class: make firmware caching configurable
Because firmware caching generates uevent messages that are sent over a netlink socket, it can prevent suspend on many platforms. It's also not always useful, so make it a configurable option. Signed-off-by: Mark Salyzyn <salyzyn@android.com> Cc: Tim Murray <timmurray@google.com> Cc: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: kernel-team@android.com Acked-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20191113225429.118495-1-salyzyn@android.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit c74f8056621738f5be9f5d3d7e0caa927b21aef6 git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-testing) Signed-off-by: Mark Salyzyn <salyzyn@google.com> Bug: 32180327 Bug: 137566496 Change-Id: I1250512b27edb56caa78d536e5ccf1fb669476ad
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2 changed files with 15 additions and 3 deletions
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@ -150,5 +150,17 @@ config FW_LOADER_USER_HELPER_FALLBACK
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If you are unsure about this, say N here.
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config FW_CACHE
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bool "Enable firmware caching during suspend"
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depends on PM_SLEEP
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default y if PM_SLEEP
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help
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Because firmware caching generates uevent messages that are sent
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over a netlink socket, it can prevent suspend on many platforms.
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It is also not always useful, so on such platforms we have the
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option.
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If unsure, say Y.
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endif # FW_LOADER
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endmenu
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@ -50,7 +50,7 @@ struct firmware_cache {
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struct list_head head;
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int state;
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#ifdef CONFIG_PM_SLEEP
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#ifdef CONFIG_FW_CACHE
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/*
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* Names of firmware images which have been cached successfully
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* will be added into the below list so that device uncache
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@ -372,7 +372,7 @@ static void fw_set_page_data(struct fw_priv *fw_priv, struct firmware *fw)
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(unsigned int)fw_priv->size);
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}
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#ifdef CONFIG_PM_SLEEP
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#ifdef CONFIG_FW_CACHE
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static void fw_name_devm_release(struct device *dev, void *res)
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{
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struct fw_name_devm *fwn = res;
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@ -856,7 +856,7 @@ request_firmware_nowait(
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}
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EXPORT_SYMBOL(request_firmware_nowait);
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#ifdef CONFIG_PM_SLEEP
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#ifdef CONFIG_FW_CACHE
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static ASYNC_DOMAIN_EXCLUSIVE(fw_cache_domain);
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/**
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