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Ananth N Mavinakayanahalli 718aae916f powerpc/sstep: Fix incorrect return from analyze_instr() 
We currently just percolate the return value from analyze_instr()
to the caller of emulate_step(), especially if it is a -1.

For one particular case (opcode = 4) for instructions that aren't
currently emulated, we are returning 'should not be single-stepped'
while we should have returned 0 which says 'did not emulate, may
have to single-step'.

Fixes: 930d6288a26787 ("powerpc: sstep: Add support for maddhd, maddhdu, maddld instructions")
Signed-off-by: Ananth N Mavinakayanahalli <ananth@linux.ibm.com>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/161157999039.64773.14950289716779364766.stgit@thinktux.local
2021-01-30 11:40:04 +11:00
..
alloc.c
treewide: add checks for the return value of memblock_alloc*()
2019-03-12 10:04:02 -07:00
checksum_32.S
powerpc32: don't adjust unmoved stack pointer in csum_partial_copy_generic() epilogue
2020-10-14 16:04:13 -07:00
checksum_64.S
ppc: propagate the calling conventions change down to csum_partial_copy_generic()
2020-08-20 15:45:22 -04:00
checksum_wrappers.c
ppc: propagate the calling conventions change down to csum_partial_copy_generic()
2020-08-20 15:45:22 -04:00
code-patching.c
powerpc/uaccess: Switch __patch_instruction() to __put_user_asm_goto()
2020-09-15 22:13:32 +10:00
copy_32.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
copy_mc_64.S
x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()
2020-10-06 11:18:04 +02:00
copypage_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
copypage_power7.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
copyuser_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
copyuser_power7.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
crtsavres.S
powerpc/64: Do not create new section for save/restore functions
2017-05-30 14:59:51 +10:00
div64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
error-inject.c
powerpc: Add support for function error injection
2018-10-20 13:26:43 +11:00
feature-fixups-test.S
powerpc: Test prefixed instructions in feature fixups
2020-05-19 00:11:02 +10:00
feature-fixups.c
powerpc/feature-fixups: use a semicolon rather than a comma
2020-12-04 01:01:20 +11:00
hweight_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
inst.c
maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault
2020-06-17 10:57:41 -07:00
ldstfp.S
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
locks.c
powerpc/pseries: Move some PAPR paravirt functions to their own file
2020-07-26 23:34:26 +10:00
Makefile
x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()
2020-10-06 11:18:04 +02:00
mem_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
memcmp_32.S
powerpc/lib: optimise PPC32 memcmp
2018-06-04 00:39:21 +10:00
memcmp_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
memcpy_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
memcpy_power7.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pmem.c
powerpc/pmem: Include pmem prototypes
2021-01-30 11:39:28 +11:00
quad.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
rheap.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
sstep.c
powerpc/sstep: Fix incorrect return from analyze_instr()
2021-01-30 11:40:04 +11:00
string_32.S
powerpc: Fix __clear_user() with KUAP enabled
2019-12-16 23:19:44 +11:00
string_64.S
powerpc: Fix __clear_user() with KUAP enabled
2019-12-16 23:19:44 +11:00
string.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
strlen_32.S
powerpc/lib: Implement strlen() in assembly for PPC32
2018-08-07 21:49:30 +10:00
test_code-patching.S
powerpc: Test prefixed code patching
2020-05-19 00:11:02 +10:00
test_emulate_step_exec_instr.S
powerpc/sstep: Add tests for Prefixed Add Immediate
2020-07-23 17:25:21 +10:00
test_emulate_step.c
powerpc/sstep: Add testcases for VSX vector paired load/store instructions
2020-12-11 00:09:10 +11:00
vmx-helper.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
xor_vmx_glue.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
xor_vmx.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
xor_vmx.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00