Alexander Gordeev 2cf532f5e6 ahci: Do not receive interrupts sent by dummy ports ... In multiple MSI mode all AHCI ports (including dummy) get assigned separate MSI vectors and (as result of execution pci_enable_msi_exact() function) separate IRQ numbers, (mapped to the MSI vectors). Therefore, although interrupts from dummy ports are not desired they are still enabled. We do not request IRQs for dummy ports, but that only means we do not assign AHCI-specific ISRs to corresponding IRQ numbers. As result, dummy port interrupts still could come and traverse all the way from the PCI device to the kernel, causing unnecessary overhead. This update disables IRQs for dummy ports and prevents the described issue. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Tested-by: David Milburn <dmilburn@redhat.com> Cc: linux-ide@vger.kernel.org Cc: stable@vger.kernel.org Fixes: 5ca72c4f7c ("AHCI: Support multiple MSIs")		2014-04-18 15:55:57 -04:00
..
acard-ahci.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
ahci.c	ahci: Do not receive interrupts sent by dummy ports	2014-04-18 15:55:57 -04:00
ahci.h	ahci: Ensure "MSI Revert to Single Message" mode is not enforced	2014-04-17 09:58:48 -04:00
ahci_da850.c	ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller	2014-03-25 15:17:13 -04:00
ahci_imx.c	ahci_imx: Put #ifdef CONFIG_PM_SLEEP around suspend / resume functions	2014-03-06 14:31:13 -05:00
ahci_platform.c	ata: move library code from ahci_platform.c to libahci_platform.c	2014-03-25 15:17:13 -04:00
ahci_st.c	ata: ahci_st: remove deprecated struct ahci_platform_data usage	2014-03-14 14:26:29 -04:00
ahci_sunxi.c	ata: ahci_sunxi: fix code formatting	2014-03-17 10:46:54 -04:00
ahci_xgene.c	ata: Fix compiler warning with APM X-Gene host controller driver	2014-03-18 16:01:04 -04:00
ata_generic.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
ata_piix.c
Kconfig	ata: fix i.MX AHCI driver dependencies	2014-04-08 08:31:48 -04:00
libahci.c	ata: remove superfluous casts	2014-03-26 12:36:53 -04:00
libahci_platform.c	ata: move library code from ahci_platform.c to libahci_platform.c	2014-03-25 15:17:13 -04:00
libata-acpi.c	ACPI and power management updates for 3.15-rc1	2014-04-01 12:48:54 -07:00
libata-core.c	libata: Update queued trim blacklist for M5x0 drives	2014-04-02 13:10:21 -04:00
libata-eh.c	libata, libsas: kill pm_result and related cleanup	2014-03-18 16:08:38 -04:00
libata-pmp.c	ata: enable quirk from jmicron JMB350 for JMB394	2014-01-31 07:05:44 -05:00
libata-scsi.c	Merge branch 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2014-01-21 18:16:08 -08:00
libata-sff.c
libata-transport.c
libata-transport.h
libata-zpodd.c	libata: zpodd: eliminate odd_can_poweroff	2014-03-14 11:23:47 -04:00
libata.h
Makefile	ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller	2014-03-25 15:17:13 -04:00
pata_acpi.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_ali.c
pata_amd.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_arasan_cf.c	pata_arasan_cf: fix ata_host_activate() failure handling	2014-04-14 13:50:03 -04:00
pata_artop.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_at32.c
pata_at91.c	pata_at91: fix ata_host_activate() failure handling	2014-04-02 13:17:31 -04:00
pata_atiixp.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_atp867x.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_bf54x.c
pata_cmd64x.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_cmd640.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_cs5520.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_cs5530.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_cs5535.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_cs5536.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_cypress.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_efar.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_ep93xx.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_hpt3x2n.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_hpt3x3.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_hpt37x.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_hpt366.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_icside.c
pata_imx.c	Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2014-03-31 15:27:37 -07:00
pata_isapnp.c
pata_it821x.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_it8213.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_ixp4xx_cf.c
pata_jmicron.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_legacy.c	pata_legacy: Remove dead code	2014-03-11 08:30:53 -04:00
pata_macio.c
pata_marvell.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_mpc52xx.c
pata_mpiix.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_netcell.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_ninja32.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_ns87410.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_ns87415.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_octeon_cf.c
pata_of_platform.c
pata_oldpiix.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_opti.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_optidma.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_palmld.c
pata_pcmcia.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_pdc202xx_old.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_pdc2027x.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_piccolo.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_platform.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_pxa.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_radisys.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_rb532_cf.c
pata_rdc.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_rz1000.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_samsung_cf.c	pata_samsung_cf: fix ata_host_activate() failure handling	2014-04-15 08:48:56 -04:00
pata_sc1200.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_scc.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_sch.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_serverworks.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_sil680.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_sis.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_sl82c105.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_triflex.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pata_via.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
pdc_adma.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_dwc_460ex.c	ata: remove superfluous casts	2014-03-26 12:36:53 -04:00
sata_fsl.c
sata_highbank.c	ata: sata_highbank: remove superfluous cast	2014-03-26 11:42:01 -04:00
sata_inic162x.c
sata_mv.c	Merge branch 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2014-02-20 12:04:15 -08:00
sata_nv.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_promise.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_promise.h
sata_qstor.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_rcar.c	sata_rcar: Add R-Car Gen2 SATA PHY support	2013-11-29 15:41:17 -05:00
sata_sil.c	Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2014-03-31 15:27:37 -07:00
sata_sil24.c
sata_sis.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_svw.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_sx4.c	ata: remove superfluous casts	2014-03-26 12:36:53 -04:00
sata_uli.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_via.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sata_vsc.c	ata: delete non-required instances of include <linux/init.h>	2014-02-13 16:40:56 -05:00
sis.h