Florent Revest e2c7a05a48 samples: ftrace: Save required argument registers in sample trampolines ... commit 8564c315876ab86fcaf8e7f558d6a84cb2ce5590 upstream. The ftrace-direct-too sample traces the handle_mm_fault function whose signature changed since the introduction of the sample. Since: commit bce617edec ("mm: do page fault accounting in handle_mm_fault") handle_mm_fault now has 4 arguments. Therefore, the sample trampoline should save 4 argument registers. s390 saves all argument registers already so it does not need a change but x86_64 needs an extra push and pop. This also evolves the signature of the tracing function to make it mirror the signature of the traced function. Link: https://lkml.kernel.org/r/20230427140700.625241-2-revest@chromium.org Cc: stable@vger.kernel.org Fixes: bce617edec ("mm: do page fault accounting in handle_mm_fault") Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-07-23 13:49:44 +02:00
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acrn
auxdisplay
binderfs
bpf	samples/bpf: xdp1 and xdp2 reduce XDPBUFSIZE to 60	2023-07-19 16:21:07 +02:00
configfs
connector
coresight
fanotify
fprobe	Fixes and minor clean ups for tracing:	2022-07-12 16:17:40 -07:00
ftrace	samples: ftrace: Save required argument registers in sample trampolines	2023-07-23 13:49:44 +02:00
hidraw
hw_breakpoint
kdb
kfifo
kmemleak
kobject
kprobes
landlock	samples/landlock: Print hints about ABI versions	2022-09-29 18:43:01 +02:00
livepatch
mei
nitro_enclaves
pidfd
pktgen
qmi	soc: qcom: qmi: use const for struct qmi_elem_info	2022-08-29 17:33:01 -05:00
rpmsg
rust	samples: add first Rust examples	2022-09-28 09:03:08 +02:00
seccomp
timers
trace_events	tracing: Add example and documentation for new __vstring() macro	2022-07-24 19:11:17 -04:00
trace_printk
uhid
user_events	tracing/user_events: Use bits vs bytes for enabled status page data	2022-09-29 10:17:37 -04:00
v4l
vfio-mdev	samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe()	2022-12-31 13:32:42 +01:00
vfs
watch_queue
watchdog
Kconfig	samples: add first Rust examples	2022-09-28 09:03:08 +02:00
Makefile	samples: add first Rust examples	2022-09-28 09:03:08 +02:00