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Message-ID: <ZqnWVi4M/UwJQwdz@li-008a6a4c-3549-11b2-a85c-c5cc2836eea2.ibm.com>
Date: Wed, 31 Jul 2024 08:14:46 +0200
From: Alexander Gordeev <agordeev@...ux.ibm.com>
To: Jann Horn <jannh@...gle.com>
Cc: Arnd Bergmann <arnd@...db.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ux.ibm.com>,
Sven Schnelle <svens@...ux.ibm.com>,
Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
Borislav Petkov <bp@...en8.de>,
Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
"H. Peter Anvin" <hpa@...or.com>, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
linux-arch@...r.kernel.org
Subject: Re: [PATCH] runtime constants: move list of constants to
vmlinux.lds.h
On Tue, Jul 30, 2024 at 10:15:16PM +0200, Jann Horn wrote:
> Refactor the list of constant variables into a macro.
> This should make it easier to add more constants in the future.
>
> Signed-off-by: Jann Horn <jannh@...gle.com>
> ---
> I'm not sure whose tree this has to go through - I guess Arnd's?
> ---
> arch/arm64/kernel/vmlinux.lds.S | 3 +--
> arch/s390/kernel/vmlinux.lds.S | 3 +--
> arch/x86/kernel/vmlinux.lds.S | 3 +--
> include/asm-generic/vmlinux.lds.h | 4 ++++
> 4 files changed, 7 insertions(+), 6 deletions(-)
...
> diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
> index 975c654cf5a5..3e8ebf1d64c5 100644
> --- a/arch/s390/kernel/vmlinux.lds.S
> +++ b/arch/s390/kernel/vmlinux.lds.S
> @@ -187,14 +187,13 @@ SECTIONS
> _eamode31 = .;
>
> /* early.c uses stsi, which requires page aligned data. */
> . = ALIGN(PAGE_SIZE);
> INIT_DATA_SECTION(0x100)
>
> - RUNTIME_CONST(shift, d_hash_shift)
> - RUNTIME_CONST(ptr, dentry_hashtable)
> + RUNTIME_CONST_VARIABLES
>
> PERCPU_SECTION(0x100)
>
> . = ALIGN(PAGE_SIZE);
> __init_end = .; /* freed after init ends here */
>
...
For s390:
Reviewed-by: Alexander Gordeev <agordeev@...ux.ibm.com>
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