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linux/arch/powerpc
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Anju T Sudhakar b59bd3527f powerpc/powernv: Return for invalid IMC domain 
Currently init_imc_pmu() can fail either because we try to register an
IMC unit with an invalid domain (i.e an IMC node not supported by the
kernel) or something went wrong while registering a valid IMC unit. In
both the cases kernel provides a 'Register failed' error message.

For example when trace-imc node is not supported by the kernel, but
skiboot advertises a trace-imc node we print:

  IMC Unknown Device type
  IMC PMU (null) Register failed

To avoid confusion just print the unknown device type message, before
attempting PMU registration, so the second message isn't printed.

Fixes: 8f95faaac5 ("powerpc/powernv: Detect and create IMC device")
Reported-by: Pavaman Subramaniyam <pavsubra@in.ibm.com>
Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Reviewed-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Reword change log a bit]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-05-22 21:32:51 +10:00
..
boot powerpc/boot: Fix missing check of lseek() return value 2019-05-03 02:54:57 +10:00
configs This pull request contains the following changes for MTD: 2019-05-12 17:57:52 -04:00
crypto powerpc updates for 5.2 2019-05-10 05:29:27 -07:00
include Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:23:24 -07:00
kernel Merge branch 'akpm' (patches from Andrew) 2019-05-19 12:15:32 -07:00
kvm * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
lib
math-emu
mm powerpc fixes for 5.2 #2 2019-05-19 10:10:15 -07:00
net
oprofile
perf powerpc/perf: Trace imc PMU functions 2019-05-03 02:55:00 +10:00
platforms powerpc/powernv: Return for invalid IMC domain 2019-05-22 21:32:51 +10:00
purgatory
sysdev * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
tools
xmon powerpc updates for 5.2 2019-05-10 05:29:27 -07:00
Kbuild
Kconfig mm: memblock: make keeping memblock memory opt-in rather than opt-out 2019-05-14 09:47:50 -07:00
Kconfig.debug powerpc/xmon: add read-only mode 2019-05-03 02:54:57 +10:00
Makefile treewide: prefix header search paths with $(srctree)/ 2019-05-18 11:49:57 +09:00
Makefile.postlink