From patchwork Thu Mar 28 15:44:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Granados via B4 Relay X-Patchwork-Id: 13608786 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89C8512D74F; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640657; cv=none; b=elpmLOjeqO9OM756pZGOzZ+KW0l1WG1s0myQ8QDQI21uPJdOTzDmcRgbPVEmyGvQoJrb4pSp+Bf629ZWjyCBhE4umv+fTZ3KOvM+xVuFHydAZ81YlyJmV+MIZ8aJnvEXB3Qh+YifXtjgLrx+xNflh0g6dCsSAoTrt4sa9DedrwE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640657; c=relaxed/simple; bh=TafjZyOBrAQcoCaSUtdYESxekOuvHr9fiXUccrxPgwg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=oOhGj12CMt2nTchKsz7OEBNN6Y9GfGELmR/mTWFkGAkJ4QmOkFBbq2P+YhqkxbnUGEspEon611ZQ1ls97Qx3XO7tGRiRzbHDeJ+hG+Poo8R0lKZvXTmDnKSAb+imenIxTdgeuLuBw2nA+DIKZmUtDcKJtBQHLaGPc/F0B6ix024= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HhV4INsj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HhV4INsj" Received: by smtp.kernel.org (Postfix) with ESMTPS id 2326BC433C7; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711640657; bh=TafjZyOBrAQcoCaSUtdYESxekOuvHr9fiXUccrxPgwg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=HhV4INsjdFJMH6CkQK7wFPjJVZRrr+YmZymoFqUgEZF5ogabkNva4TWh7CEGqCcHi e91bE02jndeBDQ+6vJen9iGftuHvAo4TsIhXFesDKdT/bP41R2xcYxzdQD1oUDXWSu /fOiBBZMlct2HMTZRapG1lSYwzJMNOlSU6rGAKKPZtNi/sFxr3e8Vt0kriyXBC0xHQ qmMsIafYP+ifNnbaIIMVhRwlYtljtn3Qb/GvTjrHGC2MW8WEQbhc8d+dyQK4HYMq5+ PDcVPs5TmPnpFOgrfMv6p/4AmkqyJo/FymJQvILQQE5WHa4geTEkDpVoHM6ZvdaPUQ CpoX+ks17ZmRA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09051C54E67; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:02 +0100 Subject: [PATCH v3 01/10] kernel misc: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-1-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. Rao" , Anil S Keshavamurthy , "David S. Miller" , Balbir Singh , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Joel Granados X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=openpgp-sha256; l=6862; i=j.granados@samsung.com; h=from:subject:message-id; bh=zWKI2WbaiCqgirqHNbxUlm2EzrR5vOXaQIBnSoj9n8I=; b=owJ4nAHtARL+kA0DAAoBupfNUreWQU8ByyZiAGYFkEmsxck3BZWQhrNuiOjNH90xMk8HtDVGf 4kmwH1mB7F9MYkBswQAAQoAHRYhBK5HCVcl5jElzssnkLqXzVK3lkFPBQJmBZBJAAoJELqXzVK3 lkFP3BIL/2qan7wwTLiJJK+4lWqvrNXeD6XVMQUVhJtRLXL+CPRQoLNPbRRC4OvDwc8yNZNatF4 ld3yf1GSwjtf46wrjxjMplEeTX+nurnvzT2U3eW2QGyX5DaEL3lgERQv3sWRVEKrLUgu2I/vYW7 VJsS9vhCxPe9mpYJ2HwyI2bjznXUAdrAXD0HOs5IQBSs/9XvkeEi0DqmurgQj2bJ0iE9+CrBxiH BZZOvtt16bBbGVWswY9fPpl+E7JGQux6ItNHqflJEnZZiao9nSkp0h+R9/AXraU3roVJCp0KjNF JdnqCXg0QRUWaLt2JIqoNBIdzgHEXGi6sBjuV3UYvQwe2jHGHQN8CkTRVJ7osHofLfKFrsC3sFG F+IUVvGCEr0d1d5GytO8pwCKYI9wJ9rkHd2RZxqYoS2wurnyTpy8G3MDgXWZGjCCwchmTw0oJc7 zd2YmTAyHk0irG9owIuVestvStFPauK191lfx3T73bNHl549m8ATBMjHk7Fdt/xIhg6pT1AsZi4 y8= X-Developer-Key: i=j.granados@samsung.com; a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados 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 the sentinel from ctl_table arrays. Reduce by one the values used to compare the size of the adjusted arrays. Signed-off-by: Joel Granados --- kernel/acct.c | 1 - kernel/exit.c | 1 - kernel/hung_task.c | 1 - kernel/kexec_core.c | 1 - kernel/latencytop.c | 1 - kernel/panic.c | 1 - kernel/pid_namespace.c | 1 - kernel/pid_sysctl.h | 1 - kernel/reboot.c | 1 - kernel/signal.c | 1 - kernel/stackleak.c | 1 - kernel/sysctl.c | 2 -- kernel/ucount.c | 3 +-- kernel/utsname_sysctl.c | 1 - kernel/watchdog.c | 2 -- 15 files changed, 1 insertion(+), 18 deletions(-) diff --git a/kernel/acct.c b/kernel/acct.c index 986c8214dabf..179848ad33e9 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -84,7 +84,6 @@ static struct ctl_table kern_acct_table[] = { .mode = 0644, .proc_handler = proc_dointvec, }, - { } }; static __init int kernel_acct_sysctls_init(void) diff --git a/kernel/exit.c b/kernel/exit.c index 41a12630cbbc..cd3aa9042f1a 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -94,7 +94,6 @@ static struct ctl_table kern_exit_table[] = { .mode = 0644, .proc_handler = proc_douintvec, }, - { } }; static __init int kernel_exit_sysctls_init(void) diff --git a/kernel/hung_task.c b/kernel/hung_task.c index b2fc2727d654..1d92016b0b3c 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -314,7 +314,6 @@ static struct ctl_table hung_task_sysctls[] = { .proc_handler = proc_dointvec_minmax, .extra1 = SYSCTL_NEG_ONE, }, - {} }; static void __init hung_task_sysctl_init(void) diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c index 0e96f6b24344..9112d69d68b0 100644 --- a/kernel/kexec_core.c +++ b/kernel/kexec_core.c @@ -948,7 +948,6 @@ static struct ctl_table kexec_core_sysctls[] = { .mode = 0644, .proc_handler = kexec_limit_handler, }, - { } }; static int __init kexec_core_sysctl_init(void) diff --git a/kernel/latencytop.c b/kernel/latencytop.c index 781249098cb6..84c53285f499 100644 --- a/kernel/latencytop.c +++ b/kernel/latencytop.c @@ -85,7 +85,6 @@ static struct ctl_table latencytop_sysctl[] = { .mode = 0644, .proc_handler = sysctl_latencytop, }, - {} }; #endif diff --git a/kernel/panic.c b/kernel/panic.c index 747c3f3d289a..8bff183d6180 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -100,7 +100,6 @@ static struct ctl_table kern_panic_table[] = { .mode = 0644, .proc_handler = proc_douintvec, }, - { } }; static __init int kernel_panic_sysctls_init(void) diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 7ade20e95232..dc48fecfa1dc 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -307,7 +307,6 @@ static struct ctl_table pid_ns_ctl_table[] = { .extra1 = SYSCTL_ZERO, .extra2 = &pid_max, }, - { } }; #endif /* CONFIG_CHECKPOINT_RESTORE */ diff --git a/kernel/pid_sysctl.h b/kernel/pid_sysctl.h index 2ee41a3a1dfd..fe9fb991dc42 100644 --- a/kernel/pid_sysctl.h +++ b/kernel/pid_sysctl.h @@ -41,7 +41,6 @@ static struct ctl_table pid_ns_ctl_table_vm[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_TWO, }, - { } }; static inline void register_pid_ns_sysctl_table_vm(void) { diff --git a/kernel/reboot.c b/kernel/reboot.c index 22c16e2564cc..f05dbde2c93f 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -1295,7 +1295,6 @@ static struct ctl_table kern_reboot_table[] = { .mode = 0644, .proc_handler = proc_dointvec, }, - { } }; static void __init kernel_reboot_sysctls_init(void) diff --git a/kernel/signal.c b/kernel/signal.c index 7bdbcf1b78d0..01c4c46a51a8 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -4840,7 +4840,6 @@ static struct ctl_table signal_debug_table[] = { .proc_handler = proc_dointvec }, #endif - { } }; static int __init init_signal_sysctls(void) diff --git a/kernel/stackleak.c b/kernel/stackleak.c index 34c9d81eea94..d099f3affcf1 100644 --- a/kernel/stackleak.c +++ b/kernel/stackleak.c @@ -54,7 +54,6 @@ static struct ctl_table stackleak_sysctls[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, - {} }; static int __init stackleak_sysctls_init(void) diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 81cc974913bb..e0b917328cf9 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -2034,7 +2034,6 @@ static struct ctl_table kern_table[] = { .extra2 = SYSCTL_INT_MAX, }, #endif - { } }; static struct ctl_table vm_table[] = { @@ -2240,7 +2239,6 @@ static struct ctl_table vm_table[] = { .extra2 = (void *)&mmap_rnd_compat_bits_max, }, #endif - { } }; int __init sysctl_init_bases(void) diff --git a/kernel/ucount.c b/kernel/ucount.c index 4aa6166cb856..e196da0204dc 100644 --- a/kernel/ucount.c +++ b/kernel/ucount.c @@ -87,7 +87,6 @@ static struct ctl_table user_table[] = { UCOUNT_ENTRY("max_fanotify_groups"), UCOUNT_ENTRY("max_fanotify_marks"), #endif - { } }; #endif /* CONFIG_SYSCTL */ @@ -96,7 +95,7 @@ bool setup_userns_sysctls(struct user_namespace *ns) #ifdef CONFIG_SYSCTL struct ctl_table *tbl; - BUILD_BUG_ON(ARRAY_SIZE(user_table) != UCOUNT_COUNTS + 1); + BUILD_BUG_ON(ARRAY_SIZE(user_table) != UCOUNT_COUNTS); setup_sysctl_set(&ns->set, &set_root, set_is_seen); tbl = kmemdup(user_table, sizeof(user_table), GFP_KERNEL); if (tbl) { diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c index 019e3a1566cf..76a772072557 100644 --- a/kernel/utsname_sysctl.c +++ b/kernel/utsname_sysctl.c @@ -120,7 +120,6 @@ static struct ctl_table uts_kern_table[] = { .proc_handler = proc_do_uts_string, .poll = &domainname_poll, }, - {} }; #ifdef CONFIG_PROC_SYSCTL diff --git a/kernel/watchdog.c b/kernel/watchdog.c index d7b2125503af..4e472d416525 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -950,7 +950,6 @@ static struct ctl_table watchdog_sysctls[] = { }, #endif /* CONFIG_SMP */ #endif - {} }; static struct ctl_table watchdog_hardlockup_sysctl[] = { @@ -963,7 +962,6 @@ static struct ctl_table watchdog_hardlockup_sysctl[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, - {} }; static void __init watchdog_sysctl_init(void) From patchwork Thu Mar 28 15:44:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Granados via B4 Relay X-Patchwork-Id: 13608785 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89CBD12F360; 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dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fuJ3G6+o" Received: by smtp.kernel.org (Postfix) with ESMTPS id 323F1C43390; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711640657; bh=b4/dj6SehevGFMXDVnAFfclsIoj8TxLZ3oIJqymWnsg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=fuJ3G6+oLkrT+l9nrSjFcpYUg/kDqfa2cFXvmbfSHDXZf9E7Adrk6HFRgV3XcR/M+ eNDCw7OSJI5AjnfJX5kt8EQev8Ikj14zHQRaRWc54CD3JQsdcmKXVj51nOlIYXnLRU l3EDWjZTVFnEOA2vLjFhGX3cOrqQj+lkZ9VYwmVy4Gwi+bAVvRyyWnWFrP8yQqF+nl iw9v68QEsS4zwpif5Qd679ElBRqIs8LHPa8CACnVouk6qf0YaQt+e+EpEMcq0tm2eS dirMaphuDGRLsK1gXJN1h9NAAZwNJ3ar7bqXgvEhC1xUp6LJP5ydXPVeD61QsFvEph ME46HcDI8o1pw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F26ACD1284; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:03 +0100 Subject: [PATCH v3 02/10] umh: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-2-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. Rao" , Anil S Keshavamurthy , "David S. Miller" , Balbir Singh , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Joel Granados X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=openpgp-sha256; l=848; i=j.granados@samsung.com; h=from:subject:message-id; bh=Us+pauVKvQYKYTVROgr9cx41Gi3l/GyUdGrp/t6hxLg=; b=owJ4nAHtARL+kA0DAAoBupfNUreWQU8ByyZiAGYFkEo0dt9WmTAEh/wL1ITZW04WdbDyjokxC /hAdi1zrFkFlYkBswQAAQoAHRYhBK5HCVcl5jElzssnkLqXzVK3lkFPBQJmBZBKAAoJELqXzVK3 lkFP2wIL/AjBsBaPYsbMjtmBVzxSkZWgD9fmjt+7K/jC87ZalaRJ0c3/FNzw5+SffsVLuX3Umam qKZ2njDL6pcTXXADXT5KEOxekjS+VwD7aR6CJh4cHUg5O6GyMAIETih91ek5+2/9mWQCVDry7kH kxcCeiGmcFIVWBXiHZ/HkD2Qp55C6O2o5NhW7nAORb1gKInoZLg2k5A0BBvWCC/2mU7ikg5WAXL YuvDzOUjNHNeCpU7+wJkuwEBCYoT7Xo6hdaf0o1eagGogaqyMysQMr5D8EDnXT2PFeI0Hu/9PSQ Cxt4kXwJrO2c4tNcUXHBR2pFGXdGVcUsdiwbsmjSNKzKwl9bQawr/Fhjq+0KeqC6Y3Eiyp4t3Dn u1VvIKLTGvrLixdIraVdZaIyMDH6GbhfbdXQ7B3FdTm1m3+pOYvPIod+FuhsP1OYlFjlbKksK3Y fbHNyShkqi5Eok7GgWo8ptBSsCWGjC962+XAMX9rnbtFs+1sECVQMEMVVNxt1y2KGGDYgldIqC5 RQ= X-Developer-Key: i=j.granados@samsung.com; a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados 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 usermodehelper_table Signed-off-by: Joel Granados --- kernel/umh.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/umh.c b/kernel/umh.c index 1b13c5d34624..598b3ffe1522 100644 --- a/kernel/umh.c +++ b/kernel/umh.c @@ -560,7 +560,6 @@ static struct ctl_table usermodehelper_table[] = { .mode = 0600, .proc_handler = proc_cap_handler, }, - { } }; static int __init init_umh_sysctls(void) From patchwork Thu Mar 28 15:44:04 2024 Content-Type: text/plain; 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Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:04 +0100 Subject: [PATCH v3 03/10] ftrace: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-3-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. 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Miller" , Balbir Singh , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Joel Granados X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=openpgp-sha256; l=1508; i=j.granados@samsung.com; h=from:subject:message-id; bh=1araE0kn/61sWG3kWH8OhE3BK5Hy2HOuryBQQ689H28=; b=owJ4nAHtARL+kA0DAAoBupfNUreWQU8ByyZiAGYFkEpW98gjG1D2aFsgWF2O5xiJynGheSz82 sXxRtohHqsNOIkBswQAAQoAHRYhBK5HCVcl5jElzssnkLqXzVK3lkFPBQJmBZBKAAoJELqXzVK3 lkFPCzUL/0SG+3ODZAcC8VOhC+0GoOi4kE7faOWvyEi+zuJjGTMcwSwNf4IntNxUSlKxLruqmu/ sXS4rISd6LajFHPlALx1lSwYZelfgle5kubkTKxbxuV4A4EpjxsYLKDFRoFS9tmt60X7MzNuPrv 2ARWH2eTismjVuHNYgaovyHiC3/nZ7Eq0vltmN6f9/mtI49KNhKAy6wgXicwxtfN5J5aRPKDmKF +Crd6eRk4VyjwwB2aR2w++kmDsP6Cjnha4ho87e4AWqV/7W9HLnSNaPkAilDaK+ZwdYvCX/6rhb nSA1+bIMwy8cuyKK461nhWqG3gxm1jyfzvwyM3bhD6Z4yl22JmRQg2TxIPM6rEulBpeOGoNfhm8 60+H0uxestVapnhLqg3gSUklk+b5Qv4YsJ9XowjlmPrCMKeLBtb6t8Wxpm+72Jba9Nba9Gyx7wB 6nHOXmVGMy7L5w1LCv/2Im1SpQ9JngLB+Gni4XCGVVQhaq/cxpd2dV7EQKFfhCDOo17ZGL+oWK6 +0= X-Developer-Key: i=j.granados@samsung.com; a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados 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 elements from ftrace_sysctls and user_event_sysctls Acked-by: "Masami Hiramatsu (Google)" Acked-by: "Steven Rostedt (Google)" Signed-off-by: Joel Granados --- kernel/trace/ftrace.c | 1 - kernel/trace/trace_events_user.c | 1 - 2 files changed, 2 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index da1710499698..6cec53aa45a6 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -8270,7 +8270,6 @@ static struct ctl_table ftrace_sysctls[] = { .mode = 0644, .proc_handler = ftrace_enable_sysctl, }, - {} }; static int __init ftrace_sysctl_init(void) diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c index 70d428c394b6..304ceed9fd7d 100644 --- a/kernel/trace/trace_events_user.c +++ b/kernel/trace/trace_events_user.c @@ -2833,7 +2833,6 @@ static struct ctl_table user_event_sysctls[] = { .mode = 0644, .proc_handler = set_max_user_events_sysctl, }, - {} }; static int __init trace_events_user_init(void) From patchwork Thu Mar 28 15:44:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Granados via B4 Relay X-Patchwork-Id: 13608787 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B449012FF88; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; 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Rao" , Anil S Keshavamurthy , "David S. Miller" , Balbir Singh , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Joel Granados X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=openpgp-sha256; l=864; i=j.granados@samsung.com; h=from:subject:message-id; bh=lyDve8Ip2KotGee+CC44snEs+zn3osht1uA6DiUuFwM=; b=owJ4nAHtARL+kA0DAAoBupfNUreWQU8ByyZiAGYFkEvKQgW+speYF787yYEHJDVSSH0tynerp 0z73pdqmzw2W4kBswQAAQoAHRYhBK5HCVcl5jElzssnkLqXzVK3lkFPBQJmBZBLAAoJELqXzVK3 lkFPUf0L/2YxDsRniEfrTN5jngDVulSOxiSB4qlNJo3EzgiFbMwGXq7qj0iTqrS6bzM/zQHQelM z6gGiMM/+yQqVBtt6i2wdHtGwRnjt/nOKL92syZf1XmUfb+DsmS3DsDC7HkhkySpWOEQLXPlh/Y vUKou/EVCej3uXWn3Sl9vZCixhu8HctQUpDljEkp3s/xydB+H6sl4c2TLRxDTAPYYbNP9MxMRxK LkPyLkmy7JCPkBw7vwDDId4ex2xU1aj5niZoIT3wH1FjULTg62tRugiLtaGtuoiqklfXBw7gc7q 53t3OF7HpFn26CSo5aJ3mgJZ97lfhYYtS2ji1qpRV9QdPw8k1cgbwYjnMeZvLRecFt7EabhMVOg +mi6NtJgoTt0zZjsuM8IeSGvTk96fszBpJuSQMJeUv+k0PnWx3KTP0gZl6nQNSt0eTxRFAYy67P 5Ugy64D77ah5RGxSUFzdEH9ayB60lVGT8bjRQn/Ix3kzI07osOgMD3M7f6SBTzAbLj7ghOBbLo6 Ww= X-Developer-Key: i=j.granados@samsung.com; 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Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:06 +0100 Subject: [PATCH v3 05/10] seccomp: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-5-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. 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Acked-by: Kees Cook Signed-off-by: Joel Granados --- kernel/seccomp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/seccomp.c b/kernel/seccomp.c index aca7b437882e..7ed72723fb8a 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -2445,7 +2445,6 @@ static struct ctl_table seccomp_sysctl_table[] = { .mode = 0644, .proc_handler = seccomp_actions_logged_handler, }, - { } }; static int __init seccomp_sysctl_init(void) From patchwork Thu Mar 28 15:44:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Granados via B4 Relay X-Patchwork-Id: 13608789 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D14751304AB; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640657; cv=none; b=b0/1X7hJ5JWmwrfESYUlvn2pwMad1Yr+qIyXbgkwW/smOeJkrfsuMl5YCv9EGa1O2+hpDy1skB0layiplj7QMCwm7LcAwSAJQJr8sct7ZItKTfpWXn5QXFC0jExxxUVPeEjEtIkxcRz+8uS8yO552g9x8ra2hr4nB9tkzAGdQa0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640657; c=relaxed/simple; bh=gVjX7kZuMI7PWnIkwvFQDdKgNrPSlsBI7m23GDAWKj8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RN+2lkL+lHyqMxIx1jYRljl6gq0KULjUTr/8BBsdJxi9wBgBnAESwVKvgK+DLPf47zwxNLRlwdo+Evx8I5gmGRTn/eOnPyzyjFq059WUDk2kl1qD5kP4Vq5oz86D//aYzjCSA6URQq2UWOY/GVgw+AnAWqtfWSiNc4CsYDBZbpo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VD9M4KpR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VD9M4KpR" Received: by smtp.kernel.org (Postfix) with ESMTPS id 8C601C32790; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711640657; bh=gVjX7kZuMI7PWnIkwvFQDdKgNrPSlsBI7m23GDAWKj8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=VD9M4KpRgRABtXgErWUIa5WvPi+7lEpxfkfoIeX1VZ4mxRQUKk6QQjkTBW5uqmK0d +hBvwjIWMDCYtZ/SEu0kQolGCuVJFFrylBR4ocX+dD3MlW+lbH4tEcKu7vH7FI1o9R DrKg13bZQ+Wg2kTVNKlgtp9reWd3bSGbYoi0sx1X58ILgJLOl8y1Eqr00HIiMa6cSv eH9g+lOUkqBottzJ5Iq5PBSIoi1dVdFQlet01MGS3uvwm+3R8lB0JyZOd3M4+tIaQx P2j9zdse9frbejoPJsG6LrbLjKrHYgvqb6FdVHIlo4oBMbZCc/qhqA0NFofIvQxDDN yOibrbrT809eA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 817DBC54E64; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:07 +0100 Subject: [PATCH v3 06/10] scheduler: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-6-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. 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a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados 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/) rm sentinel element from ctl_table arrays Acked-by: "Peter Zijlstra (Intel)" Signed-off-by: Joel Granados Tested-by: Valentin Schneider Reviewed-by: Valentin Schneider --- kernel/sched/autogroup.c | 1 - kernel/sched/core.c | 1 - kernel/sched/deadline.c | 1 - kernel/sched/fair.c | 1 - kernel/sched/rt.c | 1 - kernel/sched/topology.c | 1 - 6 files changed, 6 deletions(-) diff --git a/kernel/sched/autogroup.c b/kernel/sched/autogroup.c index 991fc9002535..db68a964e34e 100644 --- a/kernel/sched/autogroup.c +++ b/kernel/sched/autogroup.c @@ -19,7 +19,6 @@ static struct ctl_table sched_autogroup_sysctls[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, - {} }; static void __init sched_autogroup_sysctl_init(void) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 7019a40457a6..7ce76620a308 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4741,7 +4741,6 @@ static struct ctl_table sched_core_sysctls[] = { .extra2 = SYSCTL_FOUR, }, #endif /* CONFIG_NUMA_BALANCING */ - {} }; static int __init sched_core_sysctl_init(void) { diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index a04a436af8cc..c75d1307d86d 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -43,7 +43,6 @@ static struct ctl_table sched_dl_sysctls[] = { .proc_handler = proc_douintvec_minmax, .extra2 = (void *)&sysctl_sched_dl_period_max, }, - {} }; static int __init sched_dl_sysctl_init(void) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 03be0d1330a6..4ac2cf7a918e 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -157,7 +157,6 @@ static struct ctl_table sched_fair_sysctls[] = { .extra1 = SYSCTL_ZERO, }, #endif /* CONFIG_NUMA_BALANCING */ - {} }; static int __init sched_fair_sysctl_init(void) diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 3261b067b67e..aa4c1c874fa4 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -56,7 +56,6 @@ static struct ctl_table sched_rt_sysctls[] = { .mode = 0644, .proc_handler = sched_rr_handler, }, - {} }; static int __init sched_rt_sysctl_init(void) diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 99ea5986038c..42c22648d124 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -322,7 +322,6 @@ static struct ctl_table sched_energy_aware_sysctls[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, - {} }; static int __init sched_energy_aware_sysctl_init(void) From patchwork Thu Mar 28 15:44:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Granados via B4 Relay X-Patchwork-Id: 13608792 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04F09130AF7; 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a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados 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/) rm sentinel element from printk_sysctls Reviewed-by: Petr Mladek Signed-off-by: Joel Granados --- kernel/printk/sysctl.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/printk/sysctl.c b/kernel/printk/sysctl.c index c228343eeb97..3e47dedce9e5 100644 --- a/kernel/printk/sysctl.c +++ b/kernel/printk/sysctl.c @@ -76,7 +76,6 @@ static struct ctl_table printk_sysctls[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_TWO, }, - {} }; void __init printk_sysctl_init(void) From patchwork Thu Mar 28 15:44:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Granados via B4 Relay X-Patchwork-Id: 13608790 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EC67E130AC8; Thu, 28 Mar 2024 15:44:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640658; cv=none; b=ODFI156aimm8o9j2Z2qTz9ihDrBZ+GWY2DeTk6vTaf4V4Ez3yC3+Qi1A2b0bvu7mZu5eJ7XP+HGvPw38INjCEsJgk5h4WCe5OC8r3dAh3ve0uXmbSoyuXNwcZHDsq4wXQYogYn6cBZwMOr/a7E8WCWv7JPkiTcwG/H7IQuv+ka4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640658; c=relaxed/simple; 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Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:09 +0100 Subject: [PATCH v3 08/10] kprobes: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-8-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. 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Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:10 +0100 Subject: [PATCH v3 09/10] delayacct: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-9-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. 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Miller" , Balbir Singh , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Joel Granados X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=openpgp-sha256; l=901; i=j.granados@samsung.com; h=from:subject:message-id; bh=i6rZdV8sO6keniVz/tdr/tgncwQ879+rgbNywApATf4=; b=owJ4nAHtARL+kA0DAAoBupfNUreWQU8ByyZiAGYFkE6p4PaxshghascUKUubW96pCKfCYMXWK /aBSiIGgBYe9IkBswQAAQoAHRYhBK5HCVcl5jElzssnkLqXzVK3lkFPBQJmBZBOAAoJELqXzVK3 lkFPT5QL/jFMK8C8aAUdHmCMTOc9tNhM631bX9/8b8lUvEasqWg0CLuygFHjzAxdGGUi6f2nMno kUA+T74QXcgNWEfjN8VdVP/NO4Hz21SVA+aCZP0vFbtKHAWBkHmYwmnWX0fPlkGMJCrUunVQyKT /67OzmNJMzHHhjA/5fn7WKriT/aSjVsfwMvG4vmTR6pFuRckh3PfzYN490bT09jtp1LM5eUpmG8 v+ea5g4zkwWid2odf83OnRVh4vdoUz5SuApM5ocoFDK7fQ6gmTKXpn9+d22D/KNKyXUPTutUE6b B+0o078nrfEIiOgvo4renClDzc1apR/G+d1RNpqmV8CYDBGy1C/udE8mtdW8dL14nv07BW4TQ75 7DrHQJXonF56KDikz3C/7owWHYyRwwWaSoa3lP3hankVdZGw4kpt1l5d4Zc7t/LBDUip5/4gAew VC1fPxiZoxYHw1Y5wWleWrZgF2lyeO69C7f9SD9OUdRUvMTemIC3m7QuHy3ZmGO6//TXewH9oV6 tI= X-Developer-Key: i=j.granados@samsung.com; a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados 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 kern_delayacct_table Signed-off-by: Joel Granados --- kernel/delayacct.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/delayacct.c b/kernel/delayacct.c index 6f0c358e73d8..e039b0f99a0b 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -74,7 +74,6 @@ static struct ctl_table kern_delayacct_table[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, - { } }; static __init int kernel_delayacct_sysctls_init(void) From patchwork Thu Mar 28 15:44:11 2024 Content-Type: text/plain; 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Thu, 28 Mar 2024 15:44:17 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:44:11 +0100 Subject: [PATCH v3 10/10] bpf: Remove the now superfluous sentinel elements from ctl_table array Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-10-285d273912fe@samsung.com> References: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> In-Reply-To: <20240328-jag-sysctl_remove_empty_elem_kernel-v3-0-285d273912fe@samsung.com> To: Luis Chamberlain , josh@joshtriplett.org, Kees Cook , Eric Biederman , Iurii Zaikin , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Thomas Gleixner , John Stultz , Stephen Boyd , Andy Lutomirski , Will Drewry , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , Petr Mladek , John Ogness , Sergey Senozhatsky , "Naveen N. Rao" , Anil S Keshavamurthy , "David S. Miller" , Balbir Singh , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Joel Granados X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=openpgp-sha256; l=940; i=j.granados@samsung.com; h=from:subject:message-id; bh=EHedMAAx8mJbivlU9QHUO7qJGc32TBFT3ByM4xDoG9I=; b=owJ4nAHtARL+kA0DAAoBupfNUreWQU8ByyZiAGYFkE408xMhw90vhF81FOWcLfCE8LWhQfflT 61/EIF6yCrZ3okBswQAAQoAHRYhBK5HCVcl5jElzssnkLqXzVK3lkFPBQJmBZBOAAoJELqXzVK3 lkFPfZQL/3zdbAgEIU2dcwe2erodBotsa3e1HOBR1lR9Kv1mef/Eai0SkALWcSc5dDfORlh8Bpq PH8ootjUW/DunAVLKXTQn4VMu6CLt820UZOwAAUShG8wiPlD4fPaiCI3bJT2Gmei+/UblaMVCdT 7zSXlcmiXsNQpLq8wzHqy1pX7aghk8yJqVPHjwRh/RQdcVvFeabeB6ftt/HC5jB4xRGKOC2oRuT t1YyA9E3vlnRld0l3Uz4poLLs6b+/Hl1CYRdcR90Vamvfh2vrhHNkhSZalYTcUe6Zt35Kda6JmY h+Bn9Q93xvC9r8Ehl48JR/4OnKrelkTK5nibpYdaTr+qdGNmJMIlGTaIfwjxFPnT9wQwxHgSore qY5gbsjMkHcpBf/cSrodl7fYS+2m8r1N6uxoFO+qx6jK8BEHEkPUSly2nhgOStdKvBxcMqJo15Y /UHtNHyB50pyHMxZlSDGfg/qGcL5XYwLqrGyHpObIk+F5IXwU2yUuRmWXIZcFjiMMdWAeEM4C85 rE= X-Developer-Key: i=j.granados@samsung.com; a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados 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 bpf_syscall_table. Acked-by: Andrii Nakryiko Signed-off-by: Joel Granados --- kernel/bpf/syscall.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index ae2ff73bde7e..c7e805087b06 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -5979,7 +5979,6 @@ static struct ctl_table bpf_syscall_table[] = { .mode = 0644, .proc_handler = bpf_stats_handler, }, - { } }; static int __init bpf_syscall_sysctl_init(void)