Re: [PATCH v3] selinux: move ibpkeys code under CONFIG_SECURITY_INFINIBAND.

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Move cache based  pkey sid  retrieval code which was added
with  Commit "409dcf31" under CONFIG_SECURITY_INFINIBAND.
As its  going to alloc a new cache which impacts
low ram devices which was enabled by default.

Suggested-by: Paul Moore <paul@xxxxxxxxxxxxxx>
Signed-off-by: Ravi Kumar Siddojigari <rsiddoji@xxxxxxxxxxxxxx>
---
 security/selinux/Makefile         |  4 +++-
 security/selinux/include/ibpkey.h | 13 +++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/security/selinux/Makefile b/security/selinux/Makefile
index ccf950409384..2000f95fb197 100644
--- a/security/selinux/Makefile
+++ b/security/selinux/Makefile
@@ -6,7 +6,7 @@
 obj-$(CONFIG_SECURITY_SELINUX) := selinux.o

 selinux-y := avc.o hooks.o selinuxfs.o netlink.o nlmsgtab.o netif.o \
-         netnode.o netport.o ibpkey.o \
+         netnode.o netport.o \
          ss/ebitmap.o ss/hashtab.o ss/symtab.o ss/sidtab.o ss/avtab.o \
          ss/policydb.o ss/services.o ss/conditional.o ss/mls.o ss/status.o

@@ -14,6 +14,8 @@ selinux-$(CONFIG_SECURITY_NETWORK_XFRM) += xfrm.o

 selinux-$(CONFIG_NETLABEL) += netlabel.o

+selinux-$(CONFIG_SECURITY_INFINIBAND) += ibpkey.o
+
 ccflags-y := -I$(srctree)/security/selinux -I$(srctree)/security/selinux/include

 $(addprefix $(obj)/,$(selinux-y)): $(obj)/flask.h
diff --git a/security/selinux/include/ibpkey.h b/security/selinux/include/ibpkey.h
index a2ebe397bcb7..040b93cca486 100644
--- a/security/selinux/include/ibpkey.h
+++ b/security/selinux/include/ibpkey.h
@@ -14,8 +14,21 @@
 #ifndef _SELINUX_IB_PKEY_H
 #define _SELINUX_IB_PKEY_H

+#ifdef CONFIG_SECURITY_INFINIBAND
 void sel_ib_pkey_flush(void);

 int sel_ib_pkey_sid(u64 subnet_prefix, u16 pkey, u32 *sid);

+#else
+
+static inline void sel_ib_pkey_flush(void) {
+  return;
+}
+
+static inline int sel_ib_pkey_sid(u64 subnet_prefix, u16 pkey, u32 *sid) {
+  *sid = SECINITSID_UNLABELED;
+  return 0;
+}
+#endif
+
 #endif
--



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