[{"id":3668858,"web_url":"http://patchwork.ozlabs.org/comment/3668858/","msgid":"","list_archive_url":null,"date":"2026-03-25T07:39:28","subject":"Re: [Intel-wired-lan] [PATCH net-next 2/2] devlink: unregister\n shared devlink resources on destroy","submitter":{"id":75597,"url":"http://patchwork.ozlabs.org/api/people/75597/","name":"Loktionov, Aleksandr","email":"aleksandr.loktionov@intel.com"},"content":"> -----Original Message-----\n> From: Kitszel, Przemyslaw \n> Sent: Wednesday, March 25, 2026 7:27 AM\n> To: Jiri Pirko ; netdev@vger.kernel.org; Jakub\n> Kicinski \n> Cc: Nguyen, Anthony L ; intel-wired-\n> lan@lists.osuosl.org; Loktionov, Aleksandr\n> ; edumazet@google.com;\n> horms@kernel.org; pabeni@redhat.com; davem@davemloft.net; Schmidt,\n> Michal ; Kitszel, Przemyslaw\n> \n> Subject: [PATCH net-next 2/2] devlink: unregister shared devlink\n> resources on destroy\n> \n> Since shared devlink acts as a normal devlink instance, capable of all\n> usual devlink operations, it must unregister its resources.\n> \n> I plan to make use of devlink resources on a shared instance for ice\n> driver by separate series, coming soon.\n> \n> Signed-off-by: Przemek Kitszel \n> ---\n> net/devlink/sh_dev.c | 1 +\n> 1 file changed, 1 insertion(+)\n> \n> diff --git a/net/devlink/sh_dev.c b/net/devlink/sh_dev.c index\n> b85e5cb1edbe..5de138bf3630 100644\n> --- a/net/devlink/sh_dev.c\n> +++ b/net/devlink/sh_dev.c\n> @@ -71,6 +71,7 @@ static void devlink_shd_destroy(struct devlink_shd\n> *shd)\n> \n> \tlist_del(&shd->list);\n> \tdevl_lock(devlink);\n> +\tdevl_resources_unregister(devlink);\n> \tdevl_unregister(devlink);\n> \tdevl_unlock(devlink);\n> \tkfree(shd->id);\n> --\n> 2.51.1\n\nReviewed-by: Aleksandr Loktionov ","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=0OubDz2J;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::138; 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It is driver's responsibility to call this on appropriate place,\nsymmetric to resource register. Why to have this in code for sh?\n\nThe idea I had was to have callbacks to driver to do things like this\nand more eventually. Would it work for you?\n\n\n> \tdevl_unregister(devlink);\n> \tdevl_unlock(devlink);\n> \tkfree(shd->id);\n>-- \n>2.51.1\n>","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=RpMykZ2U;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::136; helo=smtp3.osuosl.org;\n envelope-from=intel-wired-lan-bounces@osuosl.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from smtp3.osuosl.org (smtp3.osuosl.org [IPv6:2605:bc80:3010::136])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhBtg4g3Vz1xy1\n\tfor ; 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It is driver's responsibility to call this on appropriate place,\n> symmetric to resource register. Why to have this in code for sh?\n> \n> The idea I had was to have callbacks to driver to do things like this\n> and more eventually. Would it work for you?\n\nfor driver stuff that could be useful (say, someone wants to have\nan additional data structure to iterate and free), OTOH, each\nentity that is sharing should \"unplug\" from shared devlink, so\nthose structures should be emptied anyway\nfor my stuff in ice I managed to do without destructor\n\ncoming back to devlink stuff - all things (resources, health)\nwould need same cleaning in all drives, so putting that in\ndevlink_shd_destroy() will simply take the burden off devs\n(at the expense of less symmetric code for normal/shared\ndevlinks)\n\nin short: I'm ok with any of\na. callback for all cleanup\nb. callback for driver-specific cleanup\nc. no callback and no driver-specific cleanup (until someone needs\n that very much)\n\nthanks!\n\n> \n> \n>> \tdevl_unregister(devlink);\n>> \tdevl_unlock(devlink);\n>> \tkfree(shd->id);\n>> -- \n>> 2.51.1\n>>","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=S1ohhvsM;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::137; 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It is driver's responsibility to call this on appropriate place,\n>> symmetric to resource register. Why to have this in code for sh?\n>> \n>> The idea I had was to have callbacks to driver to do things like this\n>> and more eventually. Would it work for you?\n>\n>for driver stuff that could be useful (say, someone wants to have\n>an additional data structure to iterate and free), OTOH, each\n>entity that is sharing should \"unplug\" from shared devlink, so\n>those structures should be emptied anyway\n>for my stuff in ice I managed to do without destructor\n>\n>coming back to devlink stuff - all things (resources, health)\n>would need same cleaning in all drives, so putting that in\n>devlink_shd_destroy() will simply take the burden off devs\n>(at the expense of less symmetric code for normal/shared\n>devlinks)\n\nI think that devs can handle the burden for the sake of symmetricity.\n\n>\n>in short: I'm ok with any of\n>a. callback for all cleanup\n>b. callback for driver-specific cleanup\n>c. no callback and no driver-specific cleanup (until someone needs\n> that very much)\n>\n>thanks!\n>\n>> \n>> \n>> > \tdevl_unregister(devlink);\n>> > \tdevl_unlock(devlink);\n>> > \tkfree(shd->id);\n>> > -- \n>> > 2.51.1\n>> > \n>","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=1wg9Xa3x;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::136; 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