linux/drivers/misc
Daniel Axtens 05155772f6 cxl: Allocate and release the SPA with the AFU
Previously the SPA was allocated and freed upon entering and leaving
AFU-directed mode. This causes some issues for error recovery - contexts
hold a pointer inside the SPA, and they may persist after the AFU has
been detached.

We would ideally like to allocate the SPA when the AFU is allocated, and
release it until the AFU is released. However, we don't know how big the
SPA needs to be until we read the AFU descriptor.

Therefore, restructure the code:

 - Allocate the SPA only once, on the first attach.

 - Release the SPA only when the entire AFU is being released (not
   detached). Guard the release with a NULL check, so we don't free
   if it was never allocated (e.g. dedicated mode)

Acked-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-08-14 21:32:04 +10:00
..
altera-stapl drivers/misc/altera-stapl/altera.c: remove extraneous KERN_INFO prefix 2015-06-25 17:00:38 -07:00
c2port
cb710
cxl cxl: Allocate and release the SPA with the AFU 2015-08-14 21:32:04 +10:00
echo
eeprom
genwqe
ibmasm
lis3lv02d kernel/params: constify struct kernel_param_ops uses 2015-05-28 11:32:10 +09:30
mei mei: nfc: fix deadlock on shutdown/suspend path 2015-07-07 15:04:12 -07:00
mic misc: mic: Fix reported static checker warning 2015-06-12 17:01:43 -07:00
sgi-gru
sgi-xp x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()' 2015-03-23 11:14:17 +01:00
ti-st ti-st: handle null allocation return correctly. 2015-05-24 12:16:47 -07:00
vmw_vmci VMCI: Guard against overflow in queue pair allocation 2015-03-25 11:32:15 +01:00
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c
ad525x_dpot.h
apds990x.c
apds9802als.c
arm-charlcd.c
atmel-ssc.c
atmel_tclib.c
bh1770glc.c
bh1780gli.c misc: bh1780: Add module aliases 2015-03-16 21:10:28 +01:00
bmp085-i2c.c
bmp085-spi.c
bmp085.c
bmp085.h
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
enclosure.c enclosure: fix WARN_ON removing an adapter in multi-path devices 2015-03-31 08:53:36 +03:00
fsa9480.c
hmc6352.c
hpilo.c
hpilo.h
ics932s401.c
ioc4.c
isl29003.c
isl29020.c
Kconfig misc: remove drivers for CARMA hardware 2015-05-24 12:11:55 -07:00
kgdbts.c clone: support passing tls argument via C rather than pt_regs magic 2015-06-25 17:00:38 -07:00
lattice-ecp3-config.c
lkdtm.c
Makefile misc: remove drivers for CARMA hardware 2015-05-24 12:11:55 -07:00
pch_phub.c
phantom.c
pti.c
spear13xx_pcie_gadget.c Pratyush Anand has moved 2015-06-25 17:00:38 -07:00
sram.c misc: sram: sort and clean up included headers 2015-06-12 17:03:57 -07:00
ti_dac7512.c
tifm_7xx1.c misc: tifm: match return type of wait_for_completion_timeout 2015-03-25 11:36:38 +01:00
tifm_core.c
tsl2550.c
vexpress-syscfg.c
vmw_balloon.c