Changes in snprintf.c

f4fd706f - selftests/bpf: Drop duplicate max/min definitions

Fri, 08 Apr 2022 23:58:17 +0000

selftests/bpf: Drop duplicate max/min definitionsDrop duplicate macros min() and MAX() definitions in prog_tests and useMIN() or MAX() in sys/param.h instead.Signed-off-by: Geliang Tang Signed-off-by: Daniel Borkmann Acked-by: Song Liu Link: https://lore.kernel.org/bpf/1ae276da9925c2de59b5bdc93b693b4c243e692e.1649462033.git.geliang.tang@suse.com List of files: /linux-6.15/tools/testing/selftests/bpf/prog_tests/snprintf.c

6972dc3b - selftests/bpf: Normalize selftest entry points

Fri, 22 Oct 2021 22:32:25 +0000

selftests/bpf: Normalize selftest entry pointsEnsure that all test entry points are global void functions with noinput arguments. Mark few subtest entry points as static.Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20211022223228.99920-2-andrii@kernel.org List of files: /linux-6.15/tools/testing/selftests/bpf/prog_tests/snprintf.c

ce547335 - selftest/bpf: Extend the bpf_snprintf() test for "%c".

Sat, 14 Aug 2021 01:57:18 +0000

selftest/bpf: Extend the bpf_snprintf() test for "%c".This patch adds various "positive" patterns for "%c" and two "negative"patterns for wide character.Signed-off-by: Kuniyuki Iwashima Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210814015718.42704-5-kuniyu@amazon.co.jp List of files: /linux-6.15/tools/testing/selftests/bpf/prog_tests/snprintf.c

f80f88f0 - selftests/bpf: Fix the snprintf test

Wed, 28 Apr 2021 15:25:01 +0000

selftests/bpf: Fix the snprintf testThe BPF program for the snprintf selftest runs on all syscall entries.On busy multicore systems this can cause concurrency issues.For example it was observed that sometimes the userspace part of thetest reads " 4 0000" instead of " 4 000" (extra '0' at the end)which seems to happen just before snprintf on another core setsend[-1] = '\0'.This patch adds a pid filter to the test to ensure that nobpf_snprintf() will write over the test's output buffers while theuserspace reads the values.Fixes: c2e39c6bdc7e ("selftests/bpf: Add a series of tests for bpf_snprintf")Reported-by: Andrii Nakryiko Signed-off-by: Florent Revest Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210428152501.1024509-1-revest@chromium.org List of files: /linux-6.15/tools/testing/selftests/bpf/prog_tests/snprintf.c

c2e39c6b - selftests/bpf: Add a series of tests for bpf_snprintf

Mon, 19 Apr 2021 15:52:43 +0000

selftests/bpf: Add a series of tests for bpf_snprintfThe "positive" part tests all format specifiers when things go well.The "negative" part makes sure that incorrect format strings fail atload time.Signed-off-by: Florent Revest Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20210419155243.1632274-7-revest@chromium.org List of files: /linux-6.15/tools/testing/selftests/bpf/prog_tests/snprintf.c