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driver core: Add debug logs when fwnode links are added/deleted
This will help with debugging fw_devlink issues. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20210915172808.620546-4-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -95,6 +95,8 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup)
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list_add(&link->s_hook, &sup->consumers);
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list_add(&link->c_hook, &con->suppliers);
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pr_debug("%pfwP Linked as a fwnode consumer to %pfwP\n",
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con, sup);
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out:
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mutex_unlock(&fwnode_link_lock);
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@ -109,6 +111,8 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup)
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*/
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static void __fwnode_link_del(struct fwnode_link *link)
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{
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pr_debug("%pfwP Dropping the fwnode link to %pfwP\n",
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link->consumer, link->supplier);
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list_del(&link->s_hook);
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list_del(&link->c_hook);
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kfree(link);
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