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authorThomas Weißschuh <linux@weissschuh.net>2024-03-15 19:11:31 +0100
committerJoel Granados <j.granados@samsung.com>2024-04-24 09:43:54 +0200
commit795f90c6f13c30484ff10355a6775979f57f78cb (patch)
treece6f6f75381431c15bf0963770ba8c8ae345ee77 /ipc
parent520713a93d550406dae14d49cdb8778d70cecdfd (diff)
sysctl: treewide: constify argument ctl_table_root::permissions(table)
The permissions callback should not modify the ctl_table. Enforce this expectation via the typesystem. This is a step to put "struct ctl_table" into .rodata throughout the kernel. The patch was created with the following coccinelle script: @@ identifier func, head, ctl; @@ int func( struct ctl_table_header *head, - struct ctl_table *ctl) + const struct ctl_table *ctl) { ... } (insert_entry() from fs/proc/proc_sysctl.c is a false-positive) No additional occurrences of '.permissions =' were found after a tree-wide search for places missed by the conccinelle script. Reviewed-by: Joel Granados <j.granados@samsung.com> Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Joel Granados <j.granados@samsung.com>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/ipc_sysctl.c2
-rw-r--r--ipc/mq_sysctl.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 1a5085e5b178..19b2a67aef40 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -204,7 +204,7 @@ static void ipc_set_ownership(struct ctl_table_header *head,
*gid = gid_valid(ns_root_gid) ? ns_root_gid : GLOBAL_ROOT_GID;
}
-static int ipc_permissions(struct ctl_table_header *head, struct ctl_table *table)
+static int ipc_permissions(struct ctl_table_header *head, const struct ctl_table *table)
{
int mode = table->mode;
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 6bb1c5397c69..43c0825da9e8 100644
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -90,7 +90,7 @@ static void mq_set_ownership(struct ctl_table_header *head,
*gid = gid_valid(ns_root_gid) ? ns_root_gid : GLOBAL_ROOT_GID;
}
-static int mq_permissions(struct ctl_table_header *head, struct ctl_table *table)
+static int mq_permissions(struct ctl_table_header *head, const struct ctl_table *table)
{
int mode = table->mode;
kuid_t ns_root_uid;