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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2022-02-09 03:17:45 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-02-08 21:37:50 -0800 |
| commit | 1f22a6f9f9a0f50218a11a0554709fd34a821fa3 (patch) | |
| tree | 8a0c033171027bd17fd306411b10c34cac437b4b /net/switchdev/switchdev.c | |
| parent | fbca4a2f649730b67488a8b36140ce4d2cf13c63 (diff) | |
| download | linux-1f22a6f9f9a0f50218a11a0554709fd34a821fa3.tar.gz linux-1f22a6f9f9a0f50218a11a0554709fd34a821fa3.tar.bz2 linux-1f22a6f9f9a0f50218a11a0554709fd34a821fa3.zip | |
libbpf: Fix accessing the first syscall argument on s390
On s390, the first syscall argument should be accessed via orig_gpr2
(see arch/s390/include/asm/syscall.h). Currently gpr[2] is used
instead, leading to bpf_syscall_macro test failure.
orig_gpr2 cannot be added to user_pt_regs, since its layout is a part
of the ABI. Therefore provide access to it only through
PT_REGS_PARM1_CORE_SYSCALL() by using a struct pt_regs flavor.
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220209021745.2215452-11-iii@linux.ibm.com
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions