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164793379a
linux/drivers/misc
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Andrew Donnellan 164793379a cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests 
Commit f67a6722d6 ("cxl: Workaround PE=0 hardware limitation in
Mellanox CX4") added a "min_pe" field to struct cxl_service_layer_ops,
to allow us to work around a Mellanox CX-4 hardware limitation.

When allocating the PE number in cxl_context_init(), we read from
ctx->afu->adapter->native->sl_ops->min_pe to get the minimum PE number.
Unsurprisingly, in a PowerVM guest ctx->afu->adapter->native is NULL,
and guests don't have a cxl_service_layer_ops struct anywhere.

Move min_pe from struct cxl_service_layer_ops to struct cxl so it's
accessible in both native and PowerVM environments. For the Mellanox
CX-4, set the min_pe value in set_sl_ops().

Fixes: f67a6722d6 ("cxl: Workaround PE=0 hardware limitation in Mellanox CX4")
Reported-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-08-09 16:52:02 +10:00
..
altera-stapl
c2port
cb710
cxl cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests 2016-08-09 16:52:02 +10:00
echo
eeprom eeprom: at24: tweak the loop_until_timeout() macro 2016-07-18 20:07:54 +02:00
genwqe GenWQE: Use pci_(request|release)_mem_regions 2016-06-21 17:11:09 -05:00
ibmasm mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
lis3lv02d
mei Merge 4.7-rc4 into char-misc-next 2016-06-25 07:29:44 -07:00
mic virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00
sgi-gru x86/platform/UV: Remove Obsolete GRU MMR address translation 2016-05-04 08:48:51 +02:00
sgi-xp
ti-st drivers: misc: ti-st: Use int instead of fuzzy char for callback status 2016-07-17 19:59:26 +02:00
vmw_vmci mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c
ad525x_dpot.h
apds990x.c
apds9802als.c
arm-charlcd.c
atmel_tclib.c
atmel-ssc.c
bh1770glc.c
bh1780gli.c
bmp085-i2c.c
bmp085-spi.c
bmp085.c
bmp085.h
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
enclosure.c
fsa9480.c
hmc6352.c
hpilo.c
hpilo.h
ics932s401.c
ioc4.c
isl29003.c
isl29020.c
Kconfig
kgdbts.c
lattice-ecp3-config.c
lkdtm_bugs.c lkdtm: silence warnings about function declarations 2016-07-15 16:14:45 -07:00
lkdtm_core.c lkdtm: silence warnings about function declarations 2016-07-15 16:14:45 -07:00
lkdtm_heap.c lkdtm: silence warnings about function declarations 2016-07-15 16:14:45 -07:00
lkdtm_perms.c lkdtm: silence warnings about function declarations 2016-07-15 16:14:45 -07:00
lkdtm_rodata.c lkdtm: silence warnings about function declarations 2016-07-15 16:14:45 -07:00
lkdtm_usercopy.c lkdtm: silence warnings about function declarations 2016-07-15 16:14:45 -07:00
lkdtm.h lkdtm: silence warnings about function declarations 2016-07-15 16:14:45 -07:00
Makefile lkdtm: split remaining logic bug tests to separate file 2016-07-07 11:09:22 -07:00
panel.c
pch_phub.c
phantom.c
pti.c
qcom-coincell.c ARM: qcom: silence an uninitialized variable warning 2016-05-01 14:20:04 -07:00
spear13xx_pcie_gadget.c
sram.c misc: sram: fix check of devm_ioremap*() return value 2016-04-30 14:15:56 -07:00
ti_dac7512.c
tifm_7xx1.c
tifm_core.c
tsl2550.c
vexpress-syscfg.c
vmw_balloon.c