LoongArch: BPF: Remove duplicated bpf_flush_icache()

chenhengqi · chenhuacai · commit b0f50dc09bf0 · 2025-10-02T22:39:52.000+08:00
The bpf_flush_icache() is called by bpf_arch_text_copy() already. So
remove it. This has been done in arm64 and riscv.

Cc: stable@vger.kernel.org
Tested-by: Vincent Li &lt;vincent.mc.li@gmail.com&gt;
Signed-off-by: Hengqi Chen &lt;hengqi.chen@gmail.com&gt;
Signed-off-by: Huacai Chen &lt;chenhuacai@loongson.cn&gt;
diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c
@@ -1718,7 +1718,6 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *ro_image,
 		goto out;
 	}
 
-	bpf_flush_icache(ro_image, ro_image_end);
 out:
 	kvfree(image);
 	return ret < 0 ? ret : size;

Original file line number	Diff line number	Diff line change
`@@ -1718,7 +1718,6 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image im, void ro_image,`
`1718`	`1718`	`goto out;`
`1719`	`1719`	`}`
`1720`	`1720`
`1721`		`- bpf_flush_icache(ro_image, ro_image_end);`
`1722`	`1721`	`out:`
`1723`	`1722`	`kvfree(image);`
`1724`	`1723`	`return ret < 0 ? ret : size;`