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Thu, 06 Mar 2025 14:02:44 -0800 (PST) Received: from pop-os.scu.edu ([129.210.115.104]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-224109ddfa6sm17478775ad.33.2025.03.06.14.02.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Mar 2025 14:02:43 -0800 (PST) From: Cong Wang To: netdev@vger.kernel.org Cc: bpf@vger.kernel.org, jakub@cloudflare.com, john.fastabend@gmail.com, zhoufeng.zf@bytedance.com, Cong Wang Subject: [Patch bpf-next v2 3/4] skmsg: save some space in struct sk_psock Date: Thu, 6 Mar 2025 14:02:04 -0800 Message-Id: <20250306220205.53753-4-xiyou.wangcong@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250306220205.53753-1-xiyou.wangcong@gmail.com> References: <20250306220205.53753-1-xiyou.wangcong@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net From: Cong Wang This patch aims to save some space in struct sk_psock and prepares for the next patch which will add more fields. psock->eval can only have 4 possible values, make it 8-bit is sufficient. psock->redir_ingress is just a boolean, using 1 bit is enough. Signed-off-by: Cong Wang --- include/linux/skmsg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h index bf28ce9b5fdb..7620f170c4b1 100644 --- a/include/linux/skmsg.h +++ b/include/linux/skmsg.h @@ -85,8 +85,8 @@ struct sk_psock { struct sock *sk_redir; u32 apply_bytes; u32 cork_bytes; - u32 eval; - bool redir_ingress; /* undefined if sk_redir is null */ + u8 eval; + u8 redir_ingress : 1; /* undefined if sk_redir is null */ struct sk_msg *cork; struct sk_psock_progs progs; #if IS_ENABLED(CONFIG_BPF_STREAM_PARSER)