1 files changed, 0 insertions, 46 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0101-bpf-fix-divides-by-zero.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0101-bpf-fix-divides-by-zero.patch
deleted file mode 100644
index 73a0ef6c..00000000
--- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0101-bpf-fix-divides-by-zero.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-From 919f74d13fc915b102092df42673100a20ac5e99 Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Mon, 29 Jan 2018 02:48:59 +0100
-Subject: [PATCH 101/103] bpf: fix divides by zero
-
-[ upstream commit c366287ebd698ef5e3de300d90cd62ee9ee7373e ]
-
-Divides by zero are not nice, lets avoid them if possible.
-
-Also do_div() seems not needed when dealing with 32bit operands,
-but this seems a minor detail.
-
-Fixes: bd4cf0ed331a ("net: filter: rework/optimize internal BPF interpreter's instruction set")
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Reported-by: syzbot <syzkaller@googlegroups.com>
-Signed-off-by: Alexei Starovoitov <ast@kernel.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- kernel/bpf/core.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
-index 64c4b13..879ca84 100644
---- a/kernel/bpf/core.c
-+++ b/kernel/bpf/core.c
-@@ -642,7 +642,7 @@ static unsigned int __bpf_prog_run(void *ctx, const struct bpf_insn *insn)
- 		DST = tmp;
- 		CONT;
- 	ALU_MOD_X:
--		if (unlikely(SRC == 0))
-+		if (unlikely((u32)SRC == 0))
- 			return 0;
- 		tmp = (u32) DST;
- 		DST = do_div(tmp, (u32) SRC);
-@@ -661,7 +661,7 @@ static unsigned int __bpf_prog_run(void *ctx, const struct bpf_insn *insn)
- 		DST = div64_u64(DST, SRC);
- 		CONT;
- 	ALU_DIV_X:
--		if (unlikely(SRC == 0))
-+		if (unlikely((u32)SRC == 0))
- 			return 0;
- 		tmp = (u32) DST;
- 		do_div(tmp, (u32) SRC);
--- 
-2.7.4
-