2024-02-19 20:27:40

by Thomas Weißschuh

[permalink] [raw]
Subject: [PATCH v3 3/3] scripts: check-sysctl-docs: handle per-namespace sysctls

Some sysctl tables are registered for each namespace.
(Like in ipc/ipc_sysctl.c)
These need special handling to track the variable assignments.

Signed-off-by: Thomas Weißschuh <[email protected]>
---
scripts/check-sysctl-docs | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/scripts/check-sysctl-docs b/scripts/check-sysctl-docs
index 739afd766708..20274c63e745 100755
--- a/scripts/check-sysctl-docs
+++ b/scripts/check-sysctl-docs
@@ -93,6 +93,7 @@ BEGINFILE {
delete entries
curtable = ""
curentry = ""
+ delete vars
if (debug) print "Processing file " FILENAME
}

@@ -105,6 +106,7 @@ BEGINFILE {
/^};$/ {
curtable = ""
curentry = ""
+ delete vars
}

curtable && /\.procname[\t ]*=[\t ]*".+"/ {
@@ -125,6 +127,24 @@ curtable && /\.procname[\t ]*=[\t ]*".+"/ {
}
}

+/kmemdup.*/ {
+ match($0, /([^ \t]+) *= *kmemdup\(([^,]+) *,/, names)
+ if (debug) print "Found variable " names[1] " for table " names[2]
+ if (names[2] in entries) {
+ vars[names[1]] = names[2]
+ }
+}
+
+/__register_sysctl_table.*/ {
+ match($0, /__register_sysctl_table\([^,]+, *"([^"]+)" *, *([^,]+)/, tables)
+ if (debug) print "Registering variable table " tables[2] " at " tables[1]
+ if (tables[1] == table && tables[2] in vars) {
+ for (entry in entries[vars[tables[2]]]) {
+ printentry(entry)
+ }
+ }
+}
+
END {
for (entry in documented) {
if (!seen[entry]) {

--
2.43.2