netdev - [PATCH v4 net-next 14/14] net: sysctl: introduce sysctl SYSCTL

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Message-Id: <20241021215910.59767-15-chia-yu.chang@nokia-bell-labs.com>
Date: Mon, 21 Oct 2024 23:59:10 +0200
From: chia-yu.chang@...ia-bell-labs.com
To: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, dsahern@...nel.org,
        netfilter-devel@...r.kernel.org, kadlec@...filter.org,
        coreteam@...filter.org, pablo@...filter.org, bpf@...r.kernel.org,
        joel.granados@...nel.org, linux-fsdevel@...r.kernel.org,
        kees@...nel.org, mcgrof@...nel.org, ij@...nel.org,
        ncardwell@...gle.com, koen.de_schepper@...ia-bell-labs.com,
        g.white@...leLabs.com, ingemar.s.johansson@...csson.com,
        mirja.kuehlewind@...csson.com, cheshire@...le.com, rs.ietf@....at,
        Jason_Livingood@...cast.com, vidhi_goel@...le.com
Cc: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com>
Subject: [PATCH v4 net-next 14/14] net: sysctl: introduce sysctl SYSCTL_FIVE

From: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com>

Add SYSCTL_FIVE for new AccECN feedback modes of net.ipv4.tcp_ecn.

Signed-off-by: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com>
---
 include/linux/sysctl.h | 17 +++++++++--------
 kernel/sysctl.c        |  3 ++-
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index aa4c6d44aaa0..37c95a70c10e 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -37,21 +37,22 @@ struct ctl_table_root;
 struct ctl_table_header;
 struct ctl_dir;
 
-/* Keep the same order as in fs/proc/proc_sysctl.c */
+/* Keep the same order as in kernel/sysctl.c */
 #define SYSCTL_ZERO			((void *)&sysctl_vals[0])
 #define SYSCTL_ONE			((void *)&sysctl_vals[1])
 #define SYSCTL_TWO			((void *)&sysctl_vals[2])
 #define SYSCTL_THREE			((void *)&sysctl_vals[3])
 #define SYSCTL_FOUR			((void *)&sysctl_vals[4])
-#define SYSCTL_ONE_HUNDRED		((void *)&sysctl_vals[5])
-#define SYSCTL_TWO_HUNDRED		((void *)&sysctl_vals[6])
-#define SYSCTL_ONE_THOUSAND		((void *)&sysctl_vals[7])
-#define SYSCTL_THREE_THOUSAND		((void *)&sysctl_vals[8])
-#define SYSCTL_INT_MAX			((void *)&sysctl_vals[9])
+#define SYSCTL_FIVE			((void *)&sysctl_vals[5])
+#define SYSCTL_ONE_HUNDRED		((void *)&sysctl_vals[6])
+#define SYSCTL_TWO_HUNDRED		((void *)&sysctl_vals[7])
+#define SYSCTL_ONE_THOUSAND		((void *)&sysctl_vals[8])
+#define SYSCTL_THREE_THOUSAND		((void *)&sysctl_vals[9])
+#define SYSCTL_INT_MAX			((void *)&sysctl_vals[10])
 
 /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
-#define SYSCTL_MAXOLDUID		((void *)&sysctl_vals[10])
-#define SYSCTL_NEG_ONE			((void *)&sysctl_vals[11])
+#define SYSCTL_MAXOLDUID		((void *)&sysctl_vals[11])
+#define SYSCTL_NEG_ONE			((void *)&sysctl_vals[12])
 
 extern const int sysctl_vals[];
 
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 79e6cb1d5c48..68b6ca67a0c6 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -82,7 +82,8 @@
 #endif
 
 /* shared constants to be used in various sysctls */
-const int sysctl_vals[] = { 0, 1, 2, 3, 4, 100, 200, 1000, 3000, INT_MAX, 65535, -1 };
+const int sysctl_vals[] = { 0, 1, 2, 3, 4, 5, 100, 200, 1000, 3000, INT_MAX,
+			   65535, -1 };
 EXPORT_SYMBOL(sysctl_vals);
 
 const unsigned long sysctl_long_vals[] = { 0, 1, LONG_MAX };
-- 
2.34.1