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| author | Heiko Carstens <hca@linux.ibm.com> | 2021-10-04 16:10:24 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-10-11 20:55:58 +0200 |
| commit | 5740a7c71ab6721863f7dcfc8ab96be00b0a4b58 (patch) | |
| tree | 98b4202728c8d8ee461210ed01647115a2b3579f /arch | |
| parent | s390/jump_label: add __init_or_module annotation (diff) | |
| download | linux-5740a7c71ab6721863f7dcfc8ab96be00b0a4b58.tar.xz linux-5740a7c71ab6721863f7dcfc8ab96be00b0a4b58.zip | |
s390/ftrace: add HAVE_DYNAMIC_FTRACE_WITH_ARGS support
Add HAVE_DYNAMIC_FTRACE_WITH_ARGS support similar to commit 02a474ca266a
("ftrace/x86: Allow for arguments to be passed in to ftrace_regs by default").
s390's ftrace implementation always provides all registers with
pt_regs, therefore this is trivial.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/Kconfig | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/ftrace.h | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 8ce2ee8ac88e..03eb3ec08b07 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -153,6 +153,7 @@ config S390 select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_CONTIGUOUS select HAVE_DYNAMIC_FTRACE + select HAVE_DYNAMIC_FTRACE_WITH_ARGS select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES select HAVE_EFFICIENT_UNALIGNED_ACCESS diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index d1841f4176be..98c066cb347f 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -42,6 +42,15 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr) return addr; } +struct ftrace_regs { + struct pt_regs regs; +}; + +static __always_inline struct pt_regs *arch_ftrace_get_regs(struct ftrace_regs *fregs) +{ + return &fregs->regs; +} + /* * Even though the system call numbers are identical for s390/s390x a * different system call table is used for compat tasks. This may lead |