Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752449AbbBJH56 (ORCPT ); Tue, 10 Feb 2015 02:57:58 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:36675 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750710AbbBJH55 (ORCPT ); Tue, 10 Feb 2015 02:57:57 -0500 Message-ID: <54D9B9FA.9030900@canonical.com> Date: Tue, 10 Feb 2015 08:57:46 +0100 From: Stefan Bader User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Sander Eikelenboom , Tejun Heo , Alexander Gordeev CC: linux-kernel@vger.kernel.org Subject: Re: 3.19: device name associates with IRQ's for ahci controllers operating with a single IRQ changed from "ahci?" to "" References: <534449189.20150209205457@eikelenboom.it> In-Reply-To: <534449189.20150209205457@eikelenboom.it> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="TLUqOsacHpMDn1lahWd4XVe6rXDr9NBvc" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3144 Lines: 86 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --TLUqOsacHpMDn1lahWd4XVe6rXDr9NBvc Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 09.02.2015 20:54, Sander Eikelenboom wrote: > Hi. >=20 > In 3.19 the device name associates with IRQ's for ahci controllers oper= ating > with a single IRQ changed from "ahci?" to "", was this intentional= ? >=20 > It's probably commit 18dcf433f3ded61eb140a55e7048ec2fef79e723 (or anoth= er one > in that series).=20 Oh, looking at that commit that might make sense. In ahci_host_activate_single_irq it now uses dev_driver_name instead of dev_= name as it did before (from ata_host_activate). The description sounds like befo= re the driver is registered this will return the bus. And registering an interru= pt would likely be before the driver is fully registered... But you probably= saw that, too. Whether that really was intentional is still the question. :) -Stefan > > -- > Sander >=20 >=20 > /proc/interrupts of an ahci controller with a single irq: > 52: 13529 0 0 0 xen-pirq-msi 00= 00:00:1f.2 >=20 > /proc/interrupts of an ahci controller with multiple irq's: > 114: 412535 0 0 0 0 0= xen-pirq-msi ahci0 > 115: 0 0 0 0 0 0= xen-pirq-msi ahci1 > 116: 16717 0 0 0 0 0= xen-pirq-msi ahci2 > 117: 0 0 0 0 0 0= xen-pirq-msi ahci3 > 118: 0 0 0 0 0 0= xen-pirq-msi ahci4 > 119: 0 0 0 0 0 0= xen-pirq-msi ahci5 >=20 >=20 --TLUqOsacHpMDn1lahWd4XVe6rXDr9NBvc Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJU2boBAAoJEOhnXe7L7s6joT0QAL+tlyjKMmZ4d4LE1KEcQV5p 257A3XNyPa20uWTbxY7B+oS8A8wVSVkX2r+0JqYMMWY/jPLHwhE5Qyt6Rr983InV M3Lge9Ip1X24d8byJk7ocUsHO5ve5LqywN1ytVL2gTFQ5D5kle1GPRLWl8NrSGz3 mquVH6ytD+kv8kd+BMTZUo5O66dCV1n2mWpdySYThycwD03oIvVENdPY4D/SjvSP 4jtClLTCeUwb0vVYHjAiemykqBlGAqEH/mLO0VkIEQypw9lgNzl/cYO1IMbS3dOa 5eqYtdnO5j7Y51rDkYo+WdMv1o3fMxXlpQLsCc8maeG4wcCT6rUUTffQuFsGYUb4 7G8TAKTM0Ct94yZSBtmyzd+nmdAV9PAclcvIdHBQlgR9LqLu+XjQHZBp/kgZvBeH R1g285cuhCtiuAmSLpCnsO7g9yPsbnIfbXHNT+4BkdvF2Gt2/qYyM2kS8JHYwKKg uPyUg6y4FIeqOYiMEEA12jE3cGyMVrbcQngR00Rm6AFk2FWDfW4MuhUMnYTFHLdn n8FSJFZR5Z/Z3PnVmJh597nSmszuuX1OCbxx04C/+s5QA81r8DKpSrJujJ4EgTJi 7/Hmm4QqnQE6HciqydybY9walnOjkta4RJBraakinRBLq3Uo0uAxqxSmUo6nEY6j 9sEjhzt4U1G6/PdyrnRs =jleW -----END PGP SIGNATURE----- --TLUqOsacHpMDn1lahWd4XVe6rXDr9NBvc-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/