linux/arch/s390
Niklas Schnelle 652d40b2f8 s390/pci: fix DMA cleanup on hard deconfigure
In commit dee60c0dbc ("s390/pci: add zpci_event_hard_deconfigured()")
we added a zdev_enabled() check to what was previously an uncoditional
call to zpci_disable_device(). There are two problems with that. Firstly
zpci_had_deconfigured() is only called on event 0x0304 for which the
device is always already disabled by the platform so it is always false.
Secondly zpci_disable_device() not only disables the device but also
calls zpci_dma_exit_device() which is thus not called and we leak the
DMA tables.

Fix this by calling zpci_disable_device() unconditionally to perform
Linux side cleanup including the freeing of DMA tables.

Fixes: dee60c0dbc ("s390/pci: add zpci_event_hard_deconfigured()")
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-03-28 20:23:54 +02:00
..
appldata s390/appldata: use struct_size() helper 2020-06-29 16:32:34 +02:00
boot s390: uv: Fix sysfs max number of VCPUs reporting 2021-01-27 13:00:04 +01:00
configs s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
crypto s390/crc32-vx: couple of typo fixes 2021-03-24 16:06:19 +01:00
hypfs s390/hypfs: use store_tod_clock_ext() 2021-02-13 17:17:55 +01:00
include s390/spinlock: remove align attribute from arch_spinlock_t 2021-03-28 20:23:54 +02:00
kernel s390/uv: fix prot virt host indication compilation 2021-03-24 16:06:19 +01:00
kvm s390/time,idle: get rid of unsigned long long 2021-03-08 10:46:27 +01:00
lib s390: convert to generic entry 2021-01-19 12:29:26 +01:00
mm s390 updates for the 5.12 merge window #2 2021-02-26 14:12:32 -08:00
net bpf: Rename BPF_XADD and prepare to encode other atomics in .imm 2021-01-14 18:34:29 -08:00
pci s390/pci: fix DMA cleanup on hard deconfigure 2021-03-28 20:23:54 +02:00
purgatory - Add support for the hugetlb_cma command line option to allocate gigantic 2020-12-14 16:22:26 -08:00
tools s390/opcodes: rename selhhhr to selfhr 2021-02-24 00:31:22 +01:00
Kbuild s390/numa: move code to arch/s390/kernel 2020-08-11 18:16:55 +02:00
Kconfig Rework of the X86 irq stack handling: 2021-02-24 16:32:23 -08:00
Kconfig.debug s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
Makefile arch: s390: Remove CONFIG_OPROFILE support 2021-01-29 10:05:51 +05:30