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authorChenguang Zhao <zhaochenguang@kylinos.cn>2023-07-28 10:30:42 +0800
committerHuacai Chen <chenhuacai@loongson.cn>2023-07-28 10:30:42 +0800
commitde0e30bee86d0f99c696a1fea34474e556a946ec (patch)
treebc7c34dec86efcce0d033b4eecc0cf33ff556b44
parente66d511fc92201ba481392e54896f1aeadfcf0e9 (diff)
LoongArch: BPF: Enable bpf_probe_read{, str}() on LoongArch
Currently nettrace does not work on LoongArch due to missing bpf_probe_read{,str}() support, with the error message: ERROR: failed to load kprobe-based eBPF ERROR: failed to load kprobe-based bpf According to commit 0ebeea8ca8a4d1d ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work"), we only need to select CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE to add said support, because LoongArch does have non-overlapping address ranges for kernel and userspace. Cc: stable@vger.kernel.org # 6.1 Signed-off-by: Chenguang Zhao <zhaochenguang@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
-rw-r--r--arch/loongarch/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index e55511af4c77..e71d5bf2cee0 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -14,6 +14,7 @@ config LOONGARCH
select ARCH_HAS_CPU_FINALIZE_INIT
select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
+ select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_INLINE_READ_LOCK if !PREEMPTION