Re: [PATCH v2 00/15] init_mm: cleanup ARCH's text/data/brk setup code
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
Date: 2021-06-07 09:31:37
Also in:
linux-arm-kernel, linux-m68k, linux-mm, linux-riscv, linux-s390, linux-sh, lkml
On Mon, Jun 07, 2021 at 07:48:54AM +0200, Christophe Leroy wrote:
Hi Kefeng, What you could do is to define a __weak function that architectures can override and call that function from mm_init() as suggested by Mike,
The problem with weak functions is that they bloat the kernel. Each time a weak function is overriden, it becomes dead unreachable code within the kernel image. At some point we're probabily going to have to enable -ffunction-sections to (hopefully) allow the dead code to be discarded. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!