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Rohan McLure ce3c0a5920 powerpc/kcsan: Exclude udelay to prevent recursive instrumentation 
[ Upstream commit 2a7ce82dc4 ]

In order for KCSAN to increase its likelihood of observing a data race,
it sets a watchpoint on memory accesses and stalls, allowing for
detection of conflicting accesses by other kernel threads or interrupts.

Stalls are implemented by injecting a call to udelay in instrumented code.
To prevent recursive instrumentation, exclude udelay from being instrumented.

Signed-off-by: Rohan McLure <rmclure@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230206021801.105268-3-rmclure@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:58:02 +01:00
..
ptrace
powerpc: ptrace: user_regset_copyin_ignore() always returns 0
2022-11-15 14:30:40 -08:00
syscalls
powerpc/32: fix syscall wrappers with 64-bit arguments
2022-11-01 10:24:09 +11:00
trace
powerpc: add definition for pt_regs offset within an interrupt frame
2022-12-02 17:54:08 +11:00
vdso
powerpc/vdso: Skip objtool from running on VDSO files
2022-11-18 19:00:06 +11:00
.gitignore
…
85xx_entry_mapping.S
powerpc: Remove CONFIG_FSL_BOOKE
2022-09-26 22:47:37 +10:00
align.c
powerpc/inst: Define ppc_inst_t
2021-12-09 22:41:21 +11:00
asm-offsets.c
powerpc: add a define for the switch frame size and regs offset
2022-12-02 17:54:08 +11:00
audit.c
…
btext.c
powerpc: Fix all occurences of duplicate words
2022-07-25 12:05:15 +10:00
cacheinfo.c
powerpc: Remove asm/prom.h from all files that don't need it
2022-05-08 22:15:04 +10:00
cacheinfo.h
…
compat_audit.c
…
cpu_setup_6xx.S
powerpc/32: Fix objtool unannotated intra-function call warnings
2022-11-18 19:00:06 +11:00
cpu_setup_44x.S
…
cpu_setup_e500.S
powerpc/32: Fix objtool unannotated intra-function call warnings
2022-11-18 19:00:06 +11:00
cpu_setup_pa6t.S
…
cpu_setup_power.c
powerpc/cputable: Move __cpu_setup() prototypes out of cputable.h
2022-09-26 22:26:49 +10:00
cpu_setup_ppc970.S
…
cpu_specs_8xx.h
powerpc/cputable: Split cpu_specs[] out of cputable.h
2022-09-26 22:47:13 +10:00
cpu_specs_40x.h
powerpc/cputable: Split cpu_specs[] out of cputable.h
2022-09-26 22:47:13 +10:00
cpu_specs_44x.h
powerpc/cputable: Split cpu_specs[] out of cputable.h
2022-09-26 22:47:13 +10:00
cpu_specs_47x.h
powerpc/cputable: Split cpu_specs[] out of cputable.h
2022-09-26 22:47:13 +10:00
cpu_specs_85xx.h
powerpc/cputable: Split cpu_specs[] for mpc85xx and e500mc
2022-09-26 23:00:05 +10:00
cpu_specs_book3s_32.h
powerpc/cputable: Split cpu_specs[] out of cputable.h
2022-09-26 22:47:13 +10:00
cpu_specs_book3s_64.h
powerpc/cputable: Split cpu_specs[] out of cputable.h
2022-09-26 22:47:13 +10:00
cpu_specs_e500mc.h
powerpc/cputable: Split cpu_specs[] for mpc85xx and e500mc
2022-09-26 23:00:05 +10:00
cpu_specs.h
powerpc/cputable: Split cpu_specs[] for mpc85xx and e500mc
2022-09-26 23:00:05 +10:00
cputable.c
powerpc/cputable: Split cpu_specs[] out of cputable.h
2022-09-26 22:47:13 +10:00
crash_dump.c
Merge tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2022-05-28 11:27:17 -07:00
dawr.c
powerpc: Include asm/firmware.h in all users of firmware_has_feature()
2022-06-29 16:45:05 +10:00
dbell.c
powerpc/64: Fix perf profiling asynchronous interrupt handlers
2023-01-30 20:07:42 +11:00
dma-iommu.c
…
dma-mask.c
…
dma-swiotlb.c
swiotlb: add a SWIOTLB_ANY flag to lift the low memory restriction
2022-04-18 07:21:12 +02:00
dt_cpu_ftrs.c
powerpc: move from strlcpy with unused retval to strscpy
2022-08-26 11:02:20 +10:00
early_32.c
powerpc: Move C prototypes out of asm-prototypes.h
2022-03-08 22:06:25 +11:00
eeh_cache.c
powerpc/kernel: Add __init attribute to eligible functions
2021-12-23 22:33:10 +11:00
eeh_driver.c
powerpc: Fix all occurences of duplicate words
2022-07-25 12:05:15 +10:00
eeh_event.c
powerpc: fix typos in comments
2022-05-05 22:12:44 +10:00
eeh_pe.c
powerpc: Fix all occurences of "the the"
2022-05-22 15:59:43 +10:00
eeh_sysfs.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
eeh.c
powerpc: fix typos in comments
2022-05-05 22:12:44 +10:00
entry_32.S
Merge branch 'topic/objtool' into next
2022-12-08 23:57:47 +11:00
entry_64.S
powerpc: Curb objtool unannotated intra-function call warnings
2022-11-15 20:11:47 +11:00
epapr_hcalls.S
…
epapr_paravirt.c
powerpc/inst: Define ppc_inst_t
2021-12-09 22:41:21 +11:00
exceptions-64e.S
powerpc/64e: Clear gprs on interrupt routine entry on Book3E
2022-12-02 20:46:08 +11:00
exceptions-64s.S
Merge branch 'topic/objtool' into next
2022-12-08 23:57:47 +11:00
fadump.c
Merge tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2022-05-28 11:27:17 -07:00
firmware.c
…
fpu.S
powerpc/64s/interrupt: handle MSR EE and RI in interrupt entry wrapper
2021-12-16 21:31:45 +11:00
head_8xx.S
Merge branch 'topic/objtool' into next
2022-12-08 23:57:47 +11:00
head_32.h
powerpc: add a definition for the marker offset within the interrupt frame
2022-12-02 17:54:08 +11:00
head_40x.S
Merge branch 'topic/objtool' into next
2022-12-08 23:57:47 +11:00
head_44x.S
powerpc: allow minimum sized kernel stack frames
2022-12-02 17:54:09 +11:00
head_64.S
Merge branch 'topic/objtool' into next
2022-12-08 23:57:47 +11:00
head_85xx.S
powerpc/85xx: Fix unannotated intra-function call warning
2023-01-30 15:59:59 +11:00
head_book3s_32.S
Merge branch 'topic/objtool' into next
2022-12-08 23:57:47 +11:00
head_booke.h
powerpc: add a definition for the marker offset within the interrupt frame
2022-12-02 17:54:08 +11:00
hw_breakpoint_constraints.c
powerpc/inst: Define ppc_inst_t
2021-12-09 22:41:21 +11:00
hw_breakpoint.c
powerpc/8xx: Fix warning in hw_breakpoint_handler()
2022-11-24 23:31:49 +11:00
idle_6xx.S
powerpc/mm: Switch obsolete dssall to .long
2021-12-23 22:35:13 +11:00
idle_64e.S
powerpc: add ISA v3.0 / v3.1 wait opcode macro
2022-09-28 19:22:10 +10:00
idle_85xx.S
powerpc: Cleanup idle for e500
2022-09-26 23:00:14 +10:00
idle_book3s.S
…
idle.c
powerpc/idle: Fix return value of __setup() handler
2022-05-04 19:37:46 +10:00
ima_arch.c
…
interrupt_64.S
powerpc/64s: Zeroise gprs on interrupt routine entry on Book3S
2022-12-02 20:46:05 +11:00
interrupt.c
powerpc/64s/interrupt: Fix interrupt exit race with security mitigation switch
2023-02-07 10:13:33 +11:00
io-workarounds.c
…
io.c
…
iomap.c
…
iommu.c
powerpc/iommu: fix memory leak with using debugfs_lookup()
2023-03-17 08:58:01 +01:00
irq_64.c
powerpc/64: Don't recurse irq replay
2023-03-17 08:58:01 +01:00
irq.c
powerpc/64: Fix perf profiling asynchronous interrupt handlers
2023-01-30 20:07:42 +11:00
isa-bridge.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
jump_label.c
…
kdebugfs.c
…
kgdb.c
powerpc: add definition for pt_regs offset within an interrupt frame
2022-12-02 17:54:08 +11:00
kprobes-ftrace.c
…
kprobes.c
Merge tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2022-12-19 07:13:33 -06:00
kvm_emul.S
…
kvm.c
powerpc: Remove CONFIG_PPC_BOOK3E_MMU
2022-09-26 23:00:14 +10:00
l2cr_6xx.S
powerpc/mm: Switch obsolete dssall to .long
2021-12-23 22:35:13 +11:00
legacy_serial.c
powerpc/kernel: Add missing of_node_put() in legacy_serial.c
2022-09-05 17:28:26 +10:00
Makefile
powerpc/32: fix syscall wrappers with 64-bit arguments of unaligned register-pairs
2022-10-13 00:49:58 +11:00
mce_power.c
powerpc/inst: Define ppc_inst_t
2021-12-09 22:41:21 +11:00
mce.c
powerpc/mce: use early_cpu_to_node() in mce_init()
2022-07-27 21:36:04 +10:00
misc_32.S
powerpc: allow minimum sized kernel stack frames
2022-12-02 17:54:09 +11:00
misc_64.S
Merge branch 'topic/objtool' into next
2022-12-08 23:57:47 +11:00
misc.S
…
module_32.c
powerpc/modules: Use PPC_LI macros instead of opencoding
2022-05-22 15:58:27 +10:00
module_64.c
powerpc/64: Add module check for ELF ABI version
2022-12-02 17:54:07 +11:00
module.c
powerpc: Replace PPC64_ELF_ABI_v{1/2} by CONFIG_PPC64_ELF_ABI_V{1/2}
2022-05-19 23:11:29 +10:00
msi.c
…
note.S
…
nvram_64.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
of_platform.c
…
optprobes_head.S
powerpc: add definition for pt_regs offset within an interrupt frame
2022-12-02 17:54:08 +11:00
optprobes.c
powerpc/kprobes: Have optimized_callback() use preempt_enable()
2022-11-24 23:31:49 +11:00
paca.c
powerpc: Remove CONFIG_PPC_BOOK3E
2022-09-26 23:00:13 +10:00
pci_32.c
powerpc/pci: Enable PCI domains in /proc when PCI bus numbers are not unique
2022-08-25 17:47:08 +10:00
pci_64.c
powerpc/pci: Hide pci_device_from_OF_node() for non-powermac code
2022-07-27 21:36:03 +10:00
pci_dn.c
powerpc/pci_dn: Add missing of_node_put()
2022-09-05 17:30:25 +10:00
pci_of_scan.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
pci-common.c
powerpc/pci-common: Fix refcount bug for 'phb->dn'
2022-09-05 17:30:29 +10:00
pci-hotplug.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
pmc.c
…
ppc_save_regs.S
powerpc: add definition for pt_regs offset within an interrupt frame
2022-12-02 17:54:08 +11:00
proc_powerpc.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
process.c
powerpc: Remove __kernel_text_address() in show_instructions()
2023-03-17 08:58:01 +01:00
prom_init_check.sh
powerpc/64: Remove unused prom_init_toc symbols
2022-09-26 20:58:16 +10:00
prom_init.c
powerpc/prom_init: drop PROM_BUG()
2022-09-26 20:58:18 +10:00
prom_parse.c
…
prom.c
powerpc/64: Move paca allocation to early_setup()
2023-03-17 08:58:02 +01:00
reloc_32.S
…
reloc_64.S
powerpc/64: avoid using r13 in relocate
2022-09-28 19:22:13 +10:00
rtas_entry.S
powerpc/rtas: Fix RTAS MSR[HV] handling for Cell
2022-08-26 08:41:54 +10:00
rtas_flash.c
powerpc: fix typos in comments
2022-05-05 22:12:44 +10:00
rtas_pci.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
rtas-proc.c
powerpc: Add missing headers
2022-05-08 22:15:40 +10:00
rtas-rtc.c
powerpc: Remove asm/prom.h from all files that don't need it
2022-05-08 22:15:04 +10:00
rtas.c
powerpc/rtas: mandate RTAS syscall filtering
2022-12-07 22:40:43 +11:00
rtasd.c
powerpc/rtasd: use correct OF API for event scan rate
2022-12-07 22:20:33 +11:00
secure_boot.c
…
security.c
powerpc: Remove CONFIG_PPC_FSL_BOOK3E
2022-09-26 23:00:13 +10:00
secvar-ops.c
…
secvar-sysfs.c
powerpc/secvar: fix refcount leak in format_show()
2022-03-08 22:07:41 +11:00
setup_32.c
powerpc: Change CONFIG_E500 to CONFIG_PPC_E500
2022-09-26 23:00:13 +10:00
setup_64.c
powerpc/64: Move paca allocation to early_setup()
2023-03-17 08:58:02 +01:00
setup-common.c
powerpc/64: Move paca allocation to early_setup()
2023-03-17 08:58:02 +01:00
setup.h
powerpc: Remove CONFIG_PPC_BOOK3E
2022-09-26 23:00:13 +10:00
signal_32.c
powerpc: Include all arch-specific syscall prototypes
2022-09-28 19:22:08 +10:00
signal_64.c
powerpc/signal: Update comment for clarity
2022-07-28 16:22:14 +10:00
signal.c
powerpc/signal: Report minimum signal frame size to userspace via AT_MINSIGSTKSZ
2022-05-19 23:11:26 +10:00
signal.h
powerpc: Don't add __powerpc_ prefix to syscall entry points
2022-10-07 00:59:54 +11:00
smp-tbsync.c
…
smp.c
powerpc: allow minimum sized kernel stack frames
2022-12-02 17:54:09 +11:00
stacktrace.c
powerpc: allow minimum sized kernel stack frames
2022-12-02 17:54:09 +11:00
static_call.c
…
suspend.c
…
swsusp_32.S
powerpc/32: Fix objtool unannotated intra-function call warnings
2022-11-18 19:00:06 +11:00
swsusp_64.c
…
swsusp_85xx.S
powerpc: Remove CONFIG_FSL_BOOKE
2022-09-26 22:47:37 +10:00
swsusp_asm64.S
powerpc/64: asm use consistent global variable declaration and access
2022-09-28 19:22:12 +10:00
swsusp.c
…
sys_ppc32.c
powerpc/32: fix syscall wrappers with 64-bit arguments
2022-11-01 10:24:09 +11:00
syscall.c
powerpc: Provide syscall wrapper
2022-09-28 19:22:09 +10:00
syscalls.c
powerpc: Adopt SYSCALL_DEFINE for arch-specific syscall handlers
2022-09-28 19:22:08 +10:00
sysfs.c
powerpc: Remove CONFIG_PPC_FSL_BOOK3E
2022-09-26 23:00:13 +10:00
systbl.c
powerpc: Don't add __powerpc_ prefix to syscall entry points
2022-10-07 00:59:54 +11:00
tau_6xx.c
powerpc: Move C prototypes out of asm-prototypes.h
2022-03-08 22:06:25 +11:00
time.c
powerpc/kcsan: Exclude udelay to prevent recursive instrumentation
2023-03-17 08:58:02 +01:00
tm.S
powerpc: add definition for pt_regs offset within an interrupt frame
2022-12-02 17:54:08 +11:00
traps.c
powerpc/64s: early boot machine check handler
2022-09-28 19:22:13 +10:00
ucall.S
…
udbg_16550.c
powerpc: Add support for early debugging via Serial 16550 console
2022-09-28 19:22:09 +10:00
udbg.c
powerpc: Add support for early debugging via Serial 16550 console
2022-09-28 19:22:09 +10:00
uprobes.c
powerpc: Reject probes on instructions that can't be single stepped
2022-05-06 00:00:20 +10:00
vdso32_wrapper.S
powerpc/vdso: Merge vdso64 and vdso32 into a single directory
2022-02-12 22:47:43 +11:00
vdso64_wrapper.S
powerpc/vdso: Merge vdso64 and vdso32 into a single directory
2022-02-12 22:47:43 +11:00
vdso.c
vdso/timens: Refactor copy-pasted find_timens_vvar_page() helper into one copy
2022-12-01 11:35:40 +01:00
vecemu.c
powerpc/inst: Define ppc_inst_t
2021-12-09 22:41:21 +11:00
vector.S
powerpc: Fix objtool unannotated intra-function call warnings
2022-11-15 20:11:47 +11:00
vmlinux.lds.S
powerpc/vmlinux.lds: Don't discard .comment
2023-01-06 00:25:12 +11:00
watchdog.c
powerpc/watchdog: introduce a NMI watchdog's factor
2022-07-27 21:36:02 +10:00