From: Joel Granados via B4 Relay <devnull+j.granados.samsung.com@kernel.org>
To: Luis Chamberlain <mcgrof@kernel.org>,
willy@infradead.org, josh@joshtriplett.org,
Kees Cook <keescook@chromium.org>,
Iurii Zaikin <yzaikin@google.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Andy Lutomirski <luto@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Guo Ren <guoren@kernel.org>, Alexey Gladkov <legion@kernel.org>
Cc: linux-fsdevel@vger.kernel.org, linux-s390@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org,
linux-ia64@vger.kernel.org, linux-csky@vger.kernel.org,
Joel Granados <j.granados@samsung.com>,
Ingo Molnar <mingo@kernel.org>
Subject: [PATCH v3 3/7] arch/x86: Remove now superfluous sentinel elem from ctl_table arrays
Date: Mon, 02 Oct 2023 13:30:38 +0200 [thread overview]
Message-ID: <20231002-jag-sysctl_remove_empty_elem_arch-v3-3-606da2840a7a@samsung.com> (raw)
In-Reply-To: <20231002-jag-sysctl_remove_empty_elem_arch-v3-0-606da2840a7a@samsung.com>
From: Joel Granados <j.granados@samsung.com>
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/)
Remove sentinel element from sld_sysctl and itmt_kern_table. This
removal is safe because register_sysctl_init and register_sysctl
implicitly use the array size in addition to checking for the sentinel.
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com> # for x86
Signed-off-by: Joel Granados <j.granados@samsung.com>
---
arch/x86/kernel/cpu/intel.c | 1 -
arch/x86/kernel/itmt.c | 1 -
2 files changed, 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index be4045628fd3..d9bb53f49a4d 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -1016,7 +1016,6 @@ static struct ctl_table sld_sysctls[] = {
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
- {}
};
static int __init sld_mitigate_sysctl_init(void)
diff --git a/arch/x86/kernel/itmt.c b/arch/x86/kernel/itmt.c
index ee4fe8cdb857..9a7c03d47861 100644
--- a/arch/x86/kernel/itmt.c
+++ b/arch/x86/kernel/itmt.c
@@ -74,7 +74,6 @@ static struct ctl_table itmt_kern_table[] = {
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
- {}
};
static struct ctl_table_header *itmt_sysctl_header;
--
2.30.2
next prev parent reply other threads:[~2023-10-02 11:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-02 11:30 [PATCH v3 0/7] sysctl: Remove sentinel elements from arch Joel Granados via B4 Relay
2023-10-02 11:30 ` [PATCH v3 1/7] S390: Remove now superfluous sentinel elem from ctl_table arrays Joel Granados via B4 Relay
2023-10-02 11:30 ` [PATCH v3 2/7] arm: " Joel Granados via B4 Relay
2023-10-02 11:30 ` Joel Granados via B4 Relay [this message]
2023-10-02 11:30 ` [PATCH v3 4/7] x86/vdso: Remove now superfluous sentinel element from ctl_table array Joel Granados via B4 Relay
2023-10-02 11:30 ` [PATCH v3 5/7] riscv: " Joel Granados via B4 Relay
2023-10-02 11:30 ` [PATCH v3 6/7] powerpc: Remove now superfluous sentinel element from ctl_table arrays Joel Granados via B4 Relay
2023-10-02 11:30 ` [PATCH v3 7/7] c-sky: Remove now superfluous sentinel element from ctl_talbe array Joel Granados via B4 Relay
2023-10-10 22:22 ` [PATCH v3 0/7] sysctl: Remove sentinel elements from arch Luis Chamberlain
2023-10-11 8:21 ` Joel Granados
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