* [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section
@ 2018-09-30 16:49 Ard Biesheuvel
2018-09-30 16:55 ` Kees Cook
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Ard Biesheuvel @ 2018-09-30 16:49 UTC (permalink / raw)
To: linux-s390
Cc: linux-kernel, linux, Ard Biesheuvel, Heiko Carstens, Kees Cook,
Thomas Gleixner, Ingo Molnar, Martin Schwidefsky, Jessica Yu,
Peter Zijlstra
Commit e872267b8bcbb179 ("jump_table: move entries into ro_after_init
region") moved the __jump_table input section into the __ro_after_init
output section, but inadvertently put the macro in the wrong place in
the s390 linker script. Let's fix that.
Fixes: e872267b8bcbb179 ("jump_table: move entries into ro_after_init region")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/s390/kernel/vmlinux.lds.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 4042bbf3f9ad..457713f48734 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -64,9 +64,9 @@ SECTIONS
__start_ro_after_init = .;
.data..ro_after_init : {
*(.data..ro_after_init)
+ JUMP_TABLE_DATA
}
EXCEPTION_TABLE(16)
- JUMP_TABLE_DATA
. = ALIGN(PAGE_SIZE);
__end_ro_after_init = .;
--
2.17.1
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section
2018-09-30 16:49 [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section Ard Biesheuvel
@ 2018-09-30 16:55 ` Kees Cook
2018-10-01 20:25 ` Heiko Carstens
2018-10-02 6:12 ` [tip:core/core] s390/vmlinux.lds: Move " tip-bot for Ard Biesheuvel
2 siblings, 0 replies; 5+ messages in thread
From: Kees Cook @ 2018-09-30 16:55 UTC (permalink / raw)
To: Ard Biesheuvel
Cc: linux-s390, LKML, Guenter Roeck, Heiko Carstens, Thomas Gleixner,
Ingo Molnar, Martin Schwidefsky, Jessica Yu, Peter Zijlstra
On Sun, Sep 30, 2018 at 9:49 AM, Ard Biesheuvel
<ard.biesheuvel@linaro.org> wrote:
> Commit e872267b8bcbb179 ("jump_table: move entries into ro_after_init
> region") moved the __jump_table input section into the __ro_after_init
> output section, but inadvertently put the macro in the wrong place in
> the s390 linker script. Let's fix that.
>
> Fixes: e872267b8bcbb179 ("jump_table: move entries into ro_after_init region")
> Reported-by: Guenter Roeck <linux@roeck-us.net>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Kees Cook <keescook@chromium.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Jessica Yu <jeyu@kernel.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
-Kees
> ---
> arch/s390/kernel/vmlinux.lds.S | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
> index 4042bbf3f9ad..457713f48734 100644
> --- a/arch/s390/kernel/vmlinux.lds.S
> +++ b/arch/s390/kernel/vmlinux.lds.S
> @@ -64,9 +64,9 @@ SECTIONS
> __start_ro_after_init = .;
> .data..ro_after_init : {
> *(.data..ro_after_init)
> + JUMP_TABLE_DATA
> }
> EXCEPTION_TABLE(16)
> - JUMP_TABLE_DATA
> . = ALIGN(PAGE_SIZE);
> __end_ro_after_init = .;
>
> --
> 2.17.1
>
--
Kees Cook
Pixel Security
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section
2018-09-30 16:49 [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section Ard Biesheuvel
2018-09-30 16:55 ` Kees Cook
@ 2018-10-01 20:25 ` Heiko Carstens
2018-10-02 5:48 ` Ard Biesheuvel
2018-10-02 6:12 ` [tip:core/core] s390/vmlinux.lds: Move " tip-bot for Ard Biesheuvel
2 siblings, 1 reply; 5+ messages in thread
From: Heiko Carstens @ 2018-10-01 20:25 UTC (permalink / raw)
To: Ard Biesheuvel, Thomas Gleixner
Cc: linux-s390, linux-kernel, linux, Kees Cook, Ingo Molnar,
Martin Schwidefsky, Jessica Yu, Peter Zijlstra
On Sun, Sep 30, 2018 at 06:49:50PM +0200, Ard Biesheuvel wrote:
> Commit e872267b8bcbb179 ("jump_table: move entries into ro_after_init
> region") moved the __jump_table input section into the __ro_after_init
> output section, but inadvertently put the macro in the wrong place in
> the s390 linker script. Let's fix that.
>
> Fixes: e872267b8bcbb179 ("jump_table: move entries into ro_after_init region")
> Reported-by: Guenter Roeck <linux@roeck-us.net>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Kees Cook <keescook@chromium.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Jessica Yu <jeyu@kernel.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> ---
> arch/s390/kernel/vmlinux.lds.S | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
I don't think this is very obvious, but this fixes current build breakage
in linux-next and I assume Thomas should pick this up.
> diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
> index 4042bbf3f9ad..457713f48734 100644
> --- a/arch/s390/kernel/vmlinux.lds.S
> +++ b/arch/s390/kernel/vmlinux.lds.S
> @@ -64,9 +64,9 @@ SECTIONS
> __start_ro_after_init = .;
> .data..ro_after_init : {
> *(.data..ro_after_init)
> + JUMP_TABLE_DATA
> }
> EXCEPTION_TABLE(16)
> - JUMP_TABLE_DATA
> . = ALIGN(PAGE_SIZE);
> __end_ro_after_init = .;
>
> --
> 2.17.1
>
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section
2018-10-01 20:25 ` Heiko Carstens
@ 2018-10-02 5:48 ` Ard Biesheuvel
0 siblings, 0 replies; 5+ messages in thread
From: Ard Biesheuvel @ 2018-10-02 5:48 UTC (permalink / raw)
To: Heiko Carstens, Thomas Gleixner, Ingo Molnar
Cc: linux-s390, Linux Kernel Mailing List, Guenter Roeck, Kees Cook,
Martin Schwidefsky, Jessica Yu, Peter Zijlstra
On 1 October 2018 at 22:25, Heiko Carstens <heiko.carstens@de.ibm.com> wrote:
> On Sun, Sep 30, 2018 at 06:49:50PM +0200, Ard Biesheuvel wrote:
>> Commit e872267b8bcbb179 ("jump_table: move entries into ro_after_init
>> region") moved the __jump_table input section into the __ro_after_init
>> output section, but inadvertently put the macro in the wrong place in
>> the s390 linker script. Let's fix that.
>>
>> Fixes: e872267b8bcbb179 ("jump_table: move entries into ro_after_init region")
>> Reported-by: Guenter Roeck <linux@roeck-us.net>
>> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
>> Cc: Kees Cook <keescook@chromium.org>
>> Cc: Thomas Gleixner <tglx@linutronix.de>
>> Cc: Ingo Molnar <mingo@redhat.com>
>> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
>> Cc: Jessica Yu <jeyu@kernel.org>
>> Cc: Peter Zijlstra <peterz@infradead.org>
>> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
>> ---
>> arch/s390/kernel/vmlinux.lds.S | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
>
> I don't think this is very obvious, but this fixes current build breakage
> in linux-next and I assume Thomas should pick this up.
>
Indeed.
Thomas, Ingo,
Could you please take this fix for the jump lable changes queued in
-next, and the other one I sent out yesterday [0], through core/core
in tip.git as before?
Thanks,
Ard.
[0] https://lore.kernel.org/lkml/20181001081324.11553-1-ard.biesheuvel@linaro.org/
^ permalink raw reply [flat|nested] 5+ messages in thread
* [tip:core/core] s390/vmlinux.lds: Move JUMP_TABLE_DATA into output section
2018-09-30 16:49 [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section Ard Biesheuvel
2018-09-30 16:55 ` Kees Cook
2018-10-01 20:25 ` Heiko Carstens
@ 2018-10-02 6:12 ` tip-bot for Ard Biesheuvel
2 siblings, 0 replies; 5+ messages in thread
From: tip-bot for Ard Biesheuvel @ 2018-10-02 6:12 UTC (permalink / raw)
To: linux-tip-commits
Cc: hpa, heiko.carstens, ard.biesheuvel, tglx, linux-kernel,
keescook, jeyu, schwidefsky, mingo, peterz, linux
Commit-ID: 57d15877033e44e9ac283b8c6e82cc67bf6a0aa6
Gitweb: https://git.kernel.org/tip/57d15877033e44e9ac283b8c6e82cc67bf6a0aa6
Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
AuthorDate: Sun, 30 Sep 2018 18:49:50 +0200
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 2 Oct 2018 08:08:08 +0200
s390/vmlinux.lds: Move JUMP_TABLE_DATA into output section
Commit e872267b8bcbb179 ("jump_table: move entries into ro_after_init
region") moved the __jump_table input section into the __ro_after_init
output section, but inadvertently put the macro in the wrong place in
the s390 linker script. Let's fix that.
Fixes: e872267b8bcbb179 ("jump_table: move entries into ro_after_init region")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: linux-s390@vger.kernel.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20180930164950.3841-1-ard.biesheuvel@linaro.org
---
arch/s390/kernel/vmlinux.lds.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 4042bbf3f9ad..457713f48734 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -64,9 +64,9 @@ SECTIONS
__start_ro_after_init = .;
.data..ro_after_init : {
*(.data..ro_after_init)
+ JUMP_TABLE_DATA
}
EXCEPTION_TABLE(16)
- JUMP_TABLE_DATA
. = ALIGN(PAGE_SIZE);
__end_ro_after_init = .;
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2018-10-02 6:13 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2018-09-30 16:49 [PATCH] s390: vmlinux.lds: move JUMP_TABLE_DATA into output section Ard Biesheuvel
2018-09-30 16:55 ` Kees Cook
2018-10-01 20:25 ` Heiko Carstens
2018-10-02 5:48 ` Ard Biesheuvel
2018-10-02 6:12 ` [tip:core/core] s390/vmlinux.lds: Move " tip-bot for Ard Biesheuvel
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