* [PATCH 3/3] s390:add missing CONFIG_STRICT_KERNEL_RWX for mark_rodata_ro
@ 2018-05-29 13:36 nixiaoming
0 siblings, 0 replies; 3+ messages in thread
From: nixiaoming @ 2018-05-29 13:36 UTC (permalink / raw)
To: catalin.marinas, will.deacon, ard.biesheuvel, marc.zyngier,
james.morse, kristina.martsenko, steve.capper, tglx, mingo, hpa,
akpm, vbabka, mhocko, dave.hansen, dan.j.williams,
kirill.shutemov, zhang.jia, schwidefsky, heiko.carstens, gregkh
Cc: nixiaoming, linux-kernel, linux-arm-kernel, x86, linux-s390
mark_rodata_ro is only called by the function mark_readonly
when CONFIG_STRICT_KERNEL_RWX=y
if CONFIG_STRICT_KERNEL_RWX is not set
a compile warning may be triggered: unused function
Signed-off-by: nixiaoming <nixiaoming@huawei.com>
---
arch/s390/mm/init.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 3fa3e53..a96fc3f 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -116,6 +116,7 @@ void __init paging_init(void)
free_area_init_nodes(max_zone_pfns);
}
+#ifdef CONFIG_STRICT_KERNEL_RWX
void mark_rodata_ro(void)
{
unsigned long size = __end_ro_after_init - __start_ro_after_init;
@@ -123,6 +124,7 @@ void mark_rodata_ro(void)
set_memory_ro((unsigned long)__start_ro_after_init, size >> PAGE_SHIFT);
pr_info("Write protected read-only-after-init data: %luk\n", size >> 10);
}
+#endif
void __init mem_init(void)
{
--
2.10.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 3/3] s390:add missing CONFIG_STRICT_KERNEL_RWX for mark_rodata_ro
2018-05-28 3:33 nixiaoming
@ 2018-05-28 5:22 ` Greg KH
0 siblings, 0 replies; 3+ messages in thread
From: Greg KH @ 2018-05-28 5:22 UTC (permalink / raw)
To: nixiaoming
Cc: schwidefsky, heiko.carstens, akpm, vbabka, mhocko, linux-kernel,
linux-s390
On Mon, May 28, 2018 at 11:33:55AM +0800, nixiaoming wrote:
> Signed-off-by: nixiaoming <nixiaoming@huawei.com>
Please do not submit patches without any changelog text. I do not
accept such patches, but other maintainers might be easier...
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 3/3] s390:add missing CONFIG_STRICT_KERNEL_RWX for mark_rodata_ro
@ 2018-05-28 3:33 nixiaoming
2018-05-28 5:22 ` Greg KH
0 siblings, 1 reply; 3+ messages in thread
From: nixiaoming @ 2018-05-28 3:33 UTC (permalink / raw)
To: schwidefsky, heiko.carstens, akpm, vbabka, mhocko, gregkh
Cc: nixiaoming, linux-kernel, linux-s390
Signed-off-by: nixiaoming <nixiaoming@huawei.com>
---
arch/s390/mm/init.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 3fa3e53..a96fc3f 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -116,6 +116,7 @@ void __init paging_init(void)
free_area_init_nodes(max_zone_pfns);
}
+#ifdef CONFIG_STRICT_KERNEL_RWX
void mark_rodata_ro(void)
{
unsigned long size = __end_ro_after_init - __start_ro_after_init;
@@ -123,6 +124,7 @@ void mark_rodata_ro(void)
set_memory_ro((unsigned long)__start_ro_after_init, size >> PAGE_SHIFT);
pr_info("Write protected read-only-after-init data: %luk\n", size >> 10);
}
+#endif
void __init mem_init(void)
{
--
2.10.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
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