linux-kernel - Kernel version numbers after 4.9.255 and 4.4.255

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Date:   Thu, 04 Feb 2021 05:59:42 +0000
From:   Jari Ruusu <jariruusu@...tonmail.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Sasha Levin <sashal@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Kernel version numbers after 4.9.255 and 4.4.255

Greg,
I hope that your linux kernel release scripts are
implemented in a way that understands that PATCHLEVEL= and
SUBLEVEL= numbers in top-level linux Makefile are encoded
as 8-bit numbers for LINUX_VERSION_CODE and
KERNEL_VERSION() macros, and must stay in range 0...255.
These 8-bit limits are hardcoded in both kernel source and
userspace ABI.

After 4.9.255 and 4.4.255, your scripts should be
incrementing a number in EXTRAVERSION= in top-level
linux Makefile.

--
Jari Ruusu  4096R/8132F189 12D6 4C3A DCDA 0AA4 27BD  ACDF F073 3C80 8132 F189