diff mbox series

[v2,03/19] xen/xsm: wrap around xsm_sysctl with CONFIG_SYSCTL

Message ID 20250326055053.3313146-4-Penny.Zheng@amd.com (mailing list archive)
State New
Headers show
Series xen: introduce CONFIG_SYSCTL | expand

Commit Message

Penny, Zheng March 26, 2025, 5:50 a.m. UTC 
As function xsm_sysctl() is solely invoked in sysctl.c, we need to
wrap around it with CONFIG_SYSCTL

Signed-off-by: Penny Zheng <Penny.Zheng@amd.com>
---
v1 -> v2
- remove unnecessary redundancy in dummy handler
- re-place #ifdef into function body
---
 xen/include/xsm/xsm.h | 4 ++++
 xen/xsm/dummy.c       | 2 ++
 xen/xsm/flask/hooks.c | 4 ++++
 3 files changed, 10 insertions(+)

Comments

Stefano Stabellini March 29, 2025, 12:06 a.m. UTC | #1 
On Wed, 26 Mar 2025, Penny Zheng wrote:
> As function xsm_sysctl() is solely invoked in sysctl.c, we need to
> wrap around it with CONFIG_SYSCTL
> 
> Signed-off-by: Penny Zheng <Penny.Zheng@amd.com>

Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
diff mbox series

Patch

diff --git a/xen/include/xsm/xsm.h b/xen/include/xsm/xsm.h
index 24acc16125..22e2429f52 100644
--- a/xen/include/xsm/xsm.h
+++ b/xen/include/xsm/xsm.h
@@ -261,7 +261,11 @@  static inline int xsm_domctl(xsm_default_t def, struct domain *d,
 
 static inline int xsm_sysctl(xsm_default_t def, int cmd)
 {
+#ifdef CONFIG_SYSCTL
     return alternative_call(xsm_ops.sysctl, cmd);
+#else
+    return -EOPNOTSUPP;
+#endif
 }
 
 static inline int xsm_readconsole(xsm_default_t def, uint32_t clear)
diff --git a/xen/xsm/dummy.c b/xen/xsm/dummy.c
index 93fbfc43cc..93a0665ecc 100644
--- a/xen/xsm/dummy.c
+++ b/xen/xsm/dummy.c
@@ -22,7 +22,9 @@  static const struct xsm_ops __initconst_cf_clobber dummy_ops = {
     .sysctl_scheduler_op           = xsm_sysctl_scheduler_op,
     .set_target                    = xsm_set_target,
     .domctl                        = xsm_domctl,
+#ifdef CONFIG_SYSCTL
     .sysctl                        = xsm_sysctl,
+#endif
     .readconsole                   = xsm_readconsole,
 
     .evtchn_unbound                = xsm_evtchn_unbound,
diff --git a/xen/xsm/flask/hooks.c b/xen/xsm/flask/hooks.c
index 6a53487ea4..befe9336ee 100644
--- a/xen/xsm/flask/hooks.c
+++ b/xen/xsm/flask/hooks.c
@@ -856,6 +856,7 @@  static int cf_check flask_domctl(struct domain *d, unsigned int cmd,
     }
 }
 
+#ifdef CONFIG_SYSCTL
 static int cf_check flask_sysctl(int cmd)
 {
     switch ( cmd )
@@ -933,6 +934,7 @@  static int cf_check flask_sysctl(int cmd)
         return avc_unknown_permission("sysctl", cmd);
     }
 }
+#endif
 
 static int cf_check flask_readconsole(uint32_t clear)
 {
@@ -1884,7 +1886,9 @@  static const struct xsm_ops __initconst_cf_clobber flask_ops = {
     .sysctl_scheduler_op = flask_sysctl_scheduler_op,
     .set_target = flask_set_target,
     .domctl = flask_domctl,
+#ifdef CONFIG_SYSCTL
     .sysctl = flask_sysctl,
+#endif
     .readconsole = flask_readconsole,
 
     .evtchn_unbound = flask_evtchn_unbound,