Niklas Cassel ea4d4ea6d1 ata: ahci: Do not read the per port area for unimplemented ports ... An AHCI HBA specifies the number of ports it supports using CAP.NP. The HBA is free to only make a subset of the number of ports available using the PI (Ports Implemented) register. libata currently creates dummy ports for HBA ports that are provided by the HBA, but which are marked as "unavailable" using the PI register. Each port will have a per port area of registers in the HBA, regardless if the port is marked as "unavailable" or not. ahci_mark_external_port() currently reads this per port area of registers using readl() to see if the port is marked as external/hotplug-capable. However, AHCI 1.3.1, section "3.1.4 Offset 0Ch: PI – Ports Implemented" states: "Software must not read or write to registers within unavailable ports." Thus, make sure that we only call ahci_mark_external_port() and ahci_update_initial_lpm_policy() for ports that are implemented. From a libata perspective, this should not change anything related to LPM, as dummy ports do not provide any ap->ops (they do not have a .set_lpm() callback), so even if EH were to call .set_lpm() on a dummy port, it was already a no-op. Fixes: f713193523 ("ata: ahci: move marking of external port earlier") Signed-off-by: Niklas Cassel <cassel@kernel.org> Tested-by: Wolf <wolf@yoxt.cc> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>		2026-01-13 22:00:02 +09:00
..
pata_parport	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
acard-ahci.c	ata: ahci: Replace deprecated PCI functions	2024-10-30 16:07:36 -05:00
ahci.c	ata: ahci: Do not read the per port area for unimplemented ports	2026-01-13 22:00:02 +09:00
ahci.h	ata: ahci: Allow ignoring the external/hotplug capability of ports	2025-08-26 07:44:32 +09:00
ahci_brcm.c	ahci: Introduce ahci_ignore_port() helper	2025-01-09 17:52:17 +09:00
ahci_ceva.c	ahci: Introduce ahci_ignore_port() helper	2025-01-09 17:52:17 +09:00
ahci_da850.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
ahci_dm816.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
ahci_dwc.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
ahci_imx.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
ahci_mtk.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
ahci_mvebu.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
ahci_octeon.c	ata: ahci_octeon: Convert to devm_platform_ioremap_resource()	2023-08-02 17:37:06 +09:00
ahci_platform.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
ahci_qoriq.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
ahci_seattle.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
ahci_st.c	ahci: st: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr()	2025-01-15 15:21:27 +01:00
ahci_sunxi.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
ahci_tegra.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
ahci_xgene.c	ata: ahci_xgene: Use int type for 'rc' to store error codes	2025-08-28 13:36:14 +09:00
ata_generic.c	ata: Constify struct pci_device_id	2024-12-03 05:10:20 +01:00
ata_piix.c	ata: libata-sata: Add link_power_management_supported sysfs attribute	2025-07-31 12:56:21 +09:00
Kconfig	ata: Fix SATA_MOBILE_LPM_POLICY description in Kconfig	2025-06-30 10:25:45 +09:00
libahci.c	ata: libata-sata: Add link_power_management_supported sysfs attribute	2025-07-31 12:56:21 +09:00
libahci_platform.c	ata: libahci_platform: Do not set mask_port_map when not needed	2025-02-10 11:54:38 +01:00
libata-acpi.c	scsi: ata: Stop disk on restart if ACPI power resources are found	2025-11-08 13:24:56 -05:00
libata-core.c	ata: libata-core: Disable LPM on ST2000DM008-2FR102	2025-12-16 14:23:10 +09:00
libata-eh.c	ata: libata-eh: Fix link state check for IDE/PATA ports	2025-08-14 18:42:16 +09:00
libata-pata-timings.c	ata: separate PATA timings code from libata-core.c	2020-03-26 10:28:19 -06:00
libata-pmp.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
libata-sata.c	ata: libata-sata: Add link_power_management_supported sysfs attribute	2025-07-31 12:56:21 +09:00
libata-scsi.c	SCSI misc on 20251204	2025-12-05 19:56:50 -08:00
libata-sff.c	ata: libata-sff: add WQ_PERCPU to alloc_workqueue users	2025-11-07 09:42:36 +01:00
libata-trace.c	ata: scsi: rename flag ATA_QCFLAG_FAILED to ATA_QCFLAG_EH	2023-01-04 13:36:26 +09:00
libata-transport.c	ata: libata-transport: replace scnprintf with sysfs_emit for simple attributes	2025-07-09 15:48:17 +02:00
libata-transport.h	ata,scsi: Remove wrappers ata_sas_tport_{add,delete}()	2024-07-04 11:52:31 +02:00
libata-zpodd.c	ata: libata-zpodd: convert timeouts to secs_to_jiffies()	2025-03-17 12:16:58 -07:00
libata.h	scsi: ata: Stop disk on restart if ACPI power resources are found	2025-11-08 13:24:56 -05:00
Makefile	ATA changes for 6.3-rc1	2023-02-22 13:35:51 -08:00
pata_acpi.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_ali.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_amd.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_arasan_cf.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_artop.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_atiixp.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_atp867x.c	ata: Constify struct pci_device_id	2024-12-03 05:10:20 +01:00
pata_buddha.c	ata: pata_buddha: Remove #include <asm/ide.h>	2023-08-24 08:09:59 +09:00
pata_cmd64x.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cmd640.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cs5520.c	ata: pata_cs5520: Rephrase file header comment	2024-07-30 07:10:30 +09:00
pata_cs5530.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cs5535.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cs5536.c	ata: pata_cs5536: fix build on 32-bit UML	2025-06-10 14:26:27 +02:00
pata_cypress.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_efar.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_ep93xx.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_falcon.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_ftide010.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_gayle.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_hpt3x2n.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_hpt3x3.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_hpt37x.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_hpt366.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_icside.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_imx.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_isapnp.c	ata: pata_isapnp: Add missing error check for devm_ioport_map()	2023-11-20 09:22:26 +09:00
pata_it821x.c	ata: pata_it821x: Replace deprecated strcpy with strscpy in it821x_display_disk	2025-10-23 14:23:40 +02:00
pata_it8213.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_ixp4xx_cf.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_jmicron.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_legacy.c	ata: pata_legacy: make legacy_exit() work again	2024-05-07 07:23:31 +09:00
pata_macio.c	ata: pata_macio: Remove space before newline	2025-08-01 08:43:08 +09:00
pata_marvell.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_mpc52xx.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_mpiix.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_netcell.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ninja32.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ns87410.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_ns87415.c	ata: pata_ns87415: mark ns87560_tf_read static	2023-07-28 08:52:42 +09:00
pata_octeon_cf.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_of_platform.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_oldpiix.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_opti.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_optidma.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_pcmcia.c	ata: pata_pcmcia: Add Iomega Clik! PCMCIA ATA/ATAPI Adapter	2025-11-18 21:58:41 +01:00
pata_pdc202xx_old.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_pdc2027x.c	ata: pata_pdc2027x: Remove space before newline and abbreviations	2025-08-01 08:43:11 +09:00
pata_piccolo.c	ata: Constify struct pci_device_id	2024-12-03 05:10:20 +01:00
pata_platform.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_pxa.c	ata: pata_pxa: Fix potential NULL pointer dereference in pxa_ata_probe()	2025-04-08 12:36:03 +09:00
pata_radisys.c	ata: Fix typos in the comment	2024-10-01 09:22:02 +02:00
pata_rb532_cf.c	ata: Switch back to struct platform_driver::remove()	2024-10-17 09:55:08 +02:00
pata_rdc.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_rz1000.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_sc1200.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_sch.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_serverworks.c	ata: pata_serverworks: Do not use the term blacklist	2024-07-30 07:10:08 +09:00
pata_sil680.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_sis.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_sl82c105.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_triflex.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pata_via.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
pdc_adma.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_dwc_460ex.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_fsl.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_gemini.c	ata: sata_gemini: Remove remaining reset glue	2024-12-16 22:36:27 +09:00
sata_gemini.h	ata: sata_gemini: Remove unused gemini_sata_reset_bridge()	2024-12-11 13:18:25 +09:00
sata_highbank.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_inic162x.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_mv.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_nv.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_promise.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_promise.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18	2019-05-21 11:28:46 +02:00
sata_qstor.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_rcar.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_sil.c	ata: libata-core: Rename ata_do_set_mode()	2025-07-04 10:36:00 +02:00
sata_sil24.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_sis.c	ata: Use always-managed version of pci_intx()	2025-01-18 14:38:49 -06:00
sata_svw.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_sx4.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_uli.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_via.c	ata: libata-eh: Simplify reset operation management	2025-07-16 09:31:43 +02:00
sata_vsc.c	ata: Use always-managed version of pci_intx()	2025-01-18 14:38:49 -06:00
sis.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00