From: Christoph Hellwig <hch@lst.de>
To: x86@kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
linux-arm-kernel@lists.infradead.org,
Andy Lutomirski <luto@kernel.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/5] x86: unexport set_memory_x and set_memory_nx
Date: Mon, 26 Aug 2019 09:55:54 +0200 [thread overview]
Message-ID: <20190826075558.8125-2-hch@lst.de> (raw)
In-Reply-To: <20190826075558.8125-1-hch@lst.de>
No module currently messed with clearing or setting the execute
permission of kernel memory, and none really should.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
arch/x86/mm/pageattr.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 6a9a77a403c9..a02ca8986299 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1967,7 +1967,6 @@ int set_memory_x(unsigned long addr, int numpages)
return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_NX), 0);
}
-EXPORT_SYMBOL(set_memory_x);
int set_memory_nx(unsigned long addr, int numpages)
{
@@ -1976,7 +1975,6 @@ int set_memory_nx(unsigned long addr, int numpages)
return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_NX), 0);
}
-EXPORT_SYMBOL(set_memory_nx);
int set_memory_ro(unsigned long addr, int numpages)
{
--
2.20.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-08-26 7:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-26 7:55 remove various unused set_memory_* related functions and exports v2 Christoph Hellwig
2019-08-26 7:55 ` Christoph Hellwig [this message]
2019-08-26 7:55 ` [PATCH 2/5] x86: remove the unused set_memory_array_* functions Christoph Hellwig
2019-08-26 7:55 ` [PATCH 3/5] x86: remove set_pages_x and set_pages_nx Christoph Hellwig
2019-08-26 7:55 ` [PATCH 4/5] x86: remove the unused set_memory_wt function Christoph Hellwig
2019-08-26 7:55 ` [PATCH 5/5] x86: remove the unused set_pages_array_wt function Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190826075558.8125-2-hch@lst.de \
--to=hch@lst.de \
--cc=dave.hansen@linux.intel.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=peterz@infradead.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).