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author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2021-03-25 20:50:01 +0800 |
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committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2021-03-29 11:17:09 +0200 |
commit | 66633abd0642f1e89d26e15f36fb13d3a1c535ff (patch) | |
tree | c444f05dd91665a6d098af42458e536eb7031132 /arch/mips/ralink/rt305x.c | |
parent | 509d36a941a3466b78d4377913623d210b162458 (diff) | |
download | linux-66633abd0642f1e89d26e15f36fb13d3a1c535ff.tar.gz linux-66633abd0642f1e89d26e15f36fb13d3a1c535ff.tar.bz2 linux-66633abd0642f1e89d26e15f36fb13d3a1c535ff.zip |
MIPS/bpf: Enable bpf_probe_read{, str}() on MIPS again
After commit 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to
archs where they work"), bpf_probe_read{, str}() functions were no longer
available on MIPS, so there exist some errors when running bpf program:
root@linux:/home/loongson/bcc# python examples/tracing/task_switch.py
bpf: Failed to load program: Invalid argument
[...]
11: (85) call bpf_probe_read#4
unknown func bpf_probe_read#4
[...]
Exception: Failed to load BPF program count_sched: Invalid argument
ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE should be restricted to archs
with non-overlapping address ranges, but they can overlap in EVA mode
on MIPS, so select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA in
arch/mips/Kconfig, otherwise the bpf old helper bpf_probe_read() will
not be available.
This is similar with the commit d195b1d1d119 ("powerpc/bpf: Enable
bpf_probe_read{, str}() on powerpc again").
Fixes: 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/ralink/rt305x.c')
0 files changed, 0 insertions, 0 deletions