The patch titled
Subject: mm/rodata_test: use PAGE_ALIGNED() helper
has been added to the -mm mm-unstable branch. Its filename is
mm-rodata_test-use-page_aligned-helper.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-rodata_test-use-page_aligned-helper.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
Subject: mm/rodata_test: use PAGE_ALIGNED() helper
Date: Tue, 6 Sep 2022 15:53:12 +0800
Use PAGE_ALIGNED() helper instead of open-coding operation, no functional
changes here.
Link: https://lkml.kernel.org/r/20220906075312.166595-1-xiujianfeng@xxxxxxxxxx
Signed-off-by: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/rodata_test.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/mm/rodata_test.c~mm-rodata_test-use-page_aligned-helper
+++ a/mm/rodata_test.c
@@ -9,13 +9,13 @@
#include <linux/rodata_test.h>
#include <linux/uaccess.h>
+#include <linux/mm.h>
#include <asm/sections.h>
static const int rodata_test_data = 0xC3;
void rodata_test(void)
{
- unsigned long start, end;
int zero = 0;
/* test 1: read the value */
@@ -39,13 +39,11 @@ void rodata_test(void)
}
/* test 4: check if the rodata section is PAGE_SIZE aligned */
- start = (unsigned long)__start_rodata;
- end = (unsigned long)__end_rodata;
- if (start & (PAGE_SIZE - 1)) {
+ if (!PAGE_ALIGNED(__start_rodata)) {
pr_err("start of .rodata is not page size aligned\n");
return;
}
- if (end & (PAGE_SIZE - 1)) {
+ if (!PAGE_ALIGNED(__end_rodata)) {
pr_err("end of .rodata is not page size aligned\n");
return;
}
_
Patches currently in -mm which might be from xiujianfeng@xxxxxxxxxx are
mm-hwpoison-add-__init-__exit-annotations-to-module-init-exit-funcs.patch
mm-rodata_test-use-page_aligned-helper.patch
