linux-kernel - [PATCH 0/2] kernel/sysctl.c: remove to major base directories

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Message-Id: <20230522210814.1919325-1-mcgrof@kernel.org>
Date:   Mon, 22 May 2023 14:08:12 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     keescook@...omium.org, yzaikin@...gle.com, ebiederm@...ssion.com,
        arnd@...db.de, bp@...en8.de, James.Bottomley@...senPartnership.com,
        deller@....de, tglx@...utronix.de, mingo@...hat.com,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        luto@...nel.org, peterz@...radead.org, brgerst@...il.com,
        christophe.jaillet@...adoo.fr, kirill.shutemov@...ux.intel.com,
        jroedel@...e.de
Cc:     j.granados@...sung.com, akpm@...ux-foundation.org,
        willy@...radead.org, linux-parisc@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH 0/2] kernel/sysctl.c: remove to major base directories

Arnd, x86 folks, your review for the second patch would be greatly appreciated.

Now that Joel has cleaned up and removed one of the routines which we wanted
to deprecate, remove two major arrays from kernel/sysctl.c which are empty or
almost empty. One of them, the debug one just needs moving to its source, so
do that.

The move for the signal sysctl costs us 23 bytes but we have already saved
1465 bytes with the other recent cleanup Joel made. The next step is to
depreecate one more call and then we can simplify the registration to only
use ARRAY_SIZE() completely and remove the extra empty entries all over.
That should save us tons of bytes all around in the kernel and we'd then
later kill for good all recursion possible sysctl registration calls.

These patches apply on top of sysctl-next [0] which already carry Joel's patches.

[0] https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git/log/?h=sysctl-next

Luis Chamberlain (2):
  sysctl: remove empty dev table
  signal: move show_unhandled_signals sysctl to its own file

 arch/parisc/kernel/traps.c |  1 +
 arch/x86/kernel/signal.c   |  1 +
 arch/x86/kernel/traps.c    |  1 +
 arch/x86/kernel/umip.c     |  1 +
 arch/x86/mm/fault.c        |  1 +
 kernel/signal.c            | 23 +++++++++++++++++++++++
 kernel/sysctl.c            | 19 -------------------
 7 files changed, 28 insertions(+), 19 deletions(-)

-- 
2.39.2