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| author | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-02-02 00:56:01 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-25 12:03:12 +0200 |
| commit | 0806cb1e6c63951fd98d33a8c4f0cfcaa58556d8 (patch) | |
| tree | 798a6ab0140cb80f77ee539c61053fda2cf91bb2 /lib | |
| parent | bacf8c749adda30a58836ab50d3efadfc1a3b49f (diff) | |
| download | linux-0806cb1e6c63951fd98d33a8c4f0cfcaa58556d8.tar.gz linux-0806cb1e6c63951fd98d33a8c4f0cfcaa58556d8.tar.bz2 linux-0806cb1e6c63951fd98d33a8c4f0cfcaa58556d8.zip | |
fprobe: Pass entry_data to handlers
[ Upstream commit 76d0de5729c0569c4071e7f21fcab394e502f03a ]
Pass the private entry_data to the entry and exit handlers so that
they can share the context data, something like saved function
arguments etc.
User must specify the private entry_data size by @entry_data_size
field before registering the fprobe.
Link: https://lkml.kernel.org/r/167526696173.433354.17408372048319432574.stgit@mhiramat.roam.corp.google.com
Cc: Florent Revest <revest@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Stable-dep-of: 700b2b439766 ("fprobe: Fix to ensure the number of active retprobes is not zero")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/test_fprobe.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/test_fprobe.c b/lib/test_fprobe.c index e0381b3ec410..34fa5a5bbda1 100644 --- a/lib/test_fprobe.c +++ b/lib/test_fprobe.c @@ -30,7 +30,8 @@ static noinline u32 fprobe_selftest_target2(u32 value) return (value / div_factor) + 1; } -static notrace void fp_entry_handler(struct fprobe *fp, unsigned long ip, struct pt_regs *regs) +static notrace void fp_entry_handler(struct fprobe *fp, unsigned long ip, + struct pt_regs *regs, void *data) { KUNIT_EXPECT_FALSE(current_test, preemptible()); /* This can be called on the fprobe_selftest_target and the fprobe_selftest_target2 */ @@ -39,7 +40,8 @@ static notrace void fp_entry_handler(struct fprobe *fp, unsigned long ip, struct entry_val = (rand1 / div_factor); } -static notrace void fp_exit_handler(struct fprobe *fp, unsigned long ip, struct pt_regs *regs) +static notrace void fp_exit_handler(struct fprobe *fp, unsigned long ip, + struct pt_regs *regs, void *data) { unsigned long ret = regs_return_value(regs); |