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micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="=-6rJxH4ASE09NOf8LQUEV" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-OriginatorOrg: impulsing.ch X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: ZR4P278MB2224.CHEP278.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: dc717c7a-de38-4c65-9518-08df1495547c X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Sep 2026 08:26:10.9689 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 86709429-7470-4d0c-bd3c-b912eebdee40 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 1KXc0leL8ueVOtB5C+Tdg2dsJ3RLdLZSLV68QnXuPJoUY6xxy6AYljujoxJzuApToCYfSSIfylHg/EBI49DYd6pt0zylqhP5cCVIOl0rdC8= X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV0P278MB1538 --=-6rJxH4ASE09NOf8LQUEV Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi, this patch did not carry a Cc: stable tag, but the platform device binding changes it fixes have meanwhile been backported to 6.18.y (6.18.51), including: ACPI: x86/rtc-cmos: Use platform device for driver binding This fix was not backported with it, so 6.18.51 is now affected by exactly the problem Nathan reported in https://lore.kernel.org/linux-acpi/20260303060752.GA2749263@ax162/ On my HP ProBook 445 G8 (AMD) the boot log changed as follows: 6.18.49 (good): rtc_cmos 00:00: alarms up to one month, y3k, 114 bytes nvram 6.18.51 (bad): rtc_cmos PNP0B00:00: error -ENXIO: IRQ index 0 not found rtc_cmos PNP0B00:00: no alarms, y3k, 114 bytes nvram On stable this is more than a confusing message. Without an IRQ the RTC has no alarm support, so CLOCK_BOOTTIME_ALARM is not available and systemd (261) refuses suspend-then-hibernate: systemd-logind: CLOCK_BOOTTIME_ALARM is not supported, can't perform suspend-then-hibernate. Call to SuspendThenHibernate failed: Sleep verb 'suspend-then-hibernate' is not configured or configuration is not supported by kernel Plain suspend and hibernate still work. RTC wake alarms are also broken: # rtcwake -m no -s 120 rtcwake: set rtc wake alarm failed: Invalid argument The fix is in mainline since v7.0 as: e9f850ba66cd ("rtc: cmos: Use platform_get_irq_optional() in cmos_platfor= m_probe()") Stable team, could you please queue it for 6.18.y? Any other stable series that received the rtc-cmos platform device binding backport would need it as well. #regzbot introduced: v6.18.49..v6.18.51 #regzbot title: rtc-cmos: no RTC alarms on x86 in 6.18.y after platform dev= ice binding backport #regzbot fix: rtc: cmos: Use platform_get_irq_optional() in cmos_platform_p= robe() Thanks, Philippe --=-6rJxH4ASE09NOf8LQUEV Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: quoted-printable -----BEGIN PGP SIGNATURE-----=0A= =0A= iQHTBAABCgA9FiEEPaCxfVqqNYSPnRhRjRDjR2hoXxoFAmqrpCEfHHBoaWxpcHBl=0A= LnNjaGVua2VyQGltcHVsc2luZy5jaAAKCRCNEONHaGhfGolzDADjqUcYkE88tkCN=0A= ZF2+VuUlI7UVh3dXDw03fSnn2Q31XWyzMs/hC16ENhkRke9tthvy1uWYIeSAURr8=0A= 8VAaYIW8OkK+sWxHEk10rrw1qmxlBgEOfWILIFjlLsnrFobYfuG8FqjQdX+2lNsW=0A= JaLvQDadMdCde1K0Y4QT3Plcj6Kgf0kQiEE32PWSY7lcHl2hFM14t1Z7VH1wxnuY=0A= 1YZExIqaV6P5ZCcgrA4yDWQUdn8ANc2L+1Rqop86FC7mbwqralvXSSDODkM43/6+=0A= eH1So1qrUC9eRdXdzlMXNQ3pNPHvBVtz03obVuzLXpxqb1uwrBNxo0+FRhVcGmMA=0A= h+GXOt+o3szdXb3KmH/sZxezrSMnmcokDNGQYMZazkvbRJ0IyxBL/Zt+bzOEz7Hg=0A= 1g2WWxHQr9bz8J0qnjEyvNsMxmQIEdjG3bDLr2zLH5EdG3/zVDn0++yswi1gb1FE=0A= sTu97Jinxa+RgKoyzUtk+EW1iPJt24UZ2BsokjjoNoOaW5076eY=3D=0A= =3DGEuN=0A= -----END PGP SIGNATURE-----=0A= --=-6rJxH4ASE09NOf8LQUEV--