The patch titled
Subject: init/main.c: fix misleading "This architecture does not have kernel memory protection" message
has been added to the -mm tree. Its filename is
init-fix-misleading-this-architecture-does-not-have-kernel-memory-protection-message.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/init-fix-misleading-this-architecture-does-not-have-kernel-memory-protection-message.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/init-fix-misleading-this-architecture-does-not-have-kernel-memory-protection-message.patch
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------------------------------------------------------
From: Christophe Leroy <christophe.leroy@xxxxxx>
Subject: init/main.c: fix misleading "This architecture does not have kernel memory protection" message
This message leads to thinking that memory protection is not implemented
for the said architecture, whereas absence of CONFIG_STRICT_KERNEL_RWX
only means that memory protection has not been selected at compile time.
Don't print this message when CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is
selected by the architecture. Instead, print "Kernel memory protection
not selected by kernel config."
Link: http://lkml.kernel.org/r/62477e446d9685459d4f27d193af6ff1bd69d55f.1578557581.git.christophe.leroy@xxxxxx
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
init/main.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/init/main.c~init-fix-misleading-this-architecture-does-not-have-kernel-memory-protection-message
+++ a/init/main.c
@@ -1104,6 +1104,11 @@ static void mark_readonly(void)
} else
pr_info("Kernel memory protection disabled.\n");
}
+#elif defined(CONFIG_ARCH_HAS_STRICT_KERNEL_RWX)
+static inline void mark_readonly(void)
+{
+ pr_warn("Kernel memory protection not selected by kernel config.\n");
+}
#else
static inline void mark_readonly(void)
{
_
Patches currently in -mm which might be from christophe.leroy@xxxxxx are
init-fix-misleading-this-architecture-does-not-have-kernel-memory-protection-message.patch
