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path: root/arch/loongarch/lib/csum.c
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2025-02-13LoongArch: csum: Fix OoB access in IP checksum code for negative lengthsYuli Wang
Commit 69e3a6aa6be2 ("LoongArch: Add checksum optimization for 64-bit system") would cause an undefined shift and an out-of-bounds read. Commit 8bd795fedb84 ("arm64: csum: Fix OoB access in IP checksum code for negative lengths") fixes the same issue on ARM64. Fixes: 69e3a6aa6be2 ("LoongArch: Add checksum optimization for 64-bit system") Co-developed-by: Wentao Guan <guanwentao@uniontech.com> Signed-off-by: Wentao Guan <guanwentao@uniontech.com> Signed-off-by: Yuli Wang <wangyuli@uniontech.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: Add checksum optimization for 64-bit systemBibo Mao
LoongArch platform is 64-bit system, which supports 8-bytes memory accessing, but generic checksum functions use 4-byte memory access. So add 8-bytes memory access optimization for checksum functions on LoongArch. And the code comes from arm64 system. When network hw checksum is disabled, iperf performance improves about 10% with this patch. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>