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Message-Id: <20211209080051.421844-1-chi.minghao@zte.com.cn>
Date: Thu, 9 Dec 2021 08:00:51 +0000
From: cgel.zte@...il.com
To: andrii.nakryiko@...il.com
Cc: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
cgel.zte@...il.com, chi.minghao@....com.cn, daniel@...earbox.net,
davem@...emloft.net, hawk@...nel.org, john.fastabend@...il.com,
kafai@...com, kpsingh@...nel.org, kuba@...nel.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
songliubraving@...com, yhs@...com, zealci@....com.cm
Subject: [PATCHv2 bpf-next] samples/bpf:remove unneeded variable
From: Minghao Chi <chi.minghao@....com.cn>
return value form directly instead of
taking this in another redundant variable.
Reported-by: Zeal Robot <zealci@....com.cm>
Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
---
samples/bpf/xdp_redirect_cpu.bpf.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/samples/bpf/xdp_redirect_cpu.bpf.c b/samples/bpf/xdp_redirect_cpu.bpf.c
index f10fe3cf25f6..25e3a405375f 100644
--- a/samples/bpf/xdp_redirect_cpu.bpf.c
+++ b/samples/bpf/xdp_redirect_cpu.bpf.c
@@ -100,7 +100,6 @@ u16 get_dest_port_ipv4_udp(struct xdp_md *ctx, u64 nh_off)
void *data = (void *)(long)ctx->data;
struct iphdr *iph = data + nh_off;
struct udphdr *udph;
- u16 dport;
if (iph + 1 > data_end)
return 0;
@@ -111,8 +110,7 @@ u16 get_dest_port_ipv4_udp(struct xdp_md *ctx, u64 nh_off)
if (udph + 1 > data_end)
return 0;
- dport = bpf_ntohs(udph->dest);
- return dport;
+ return bpf_ntohs(udph->dest);
}
static __always_inline
--
2.25.1
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