Re: rfc: remove print_vma_addr ? (was Re: [PATCH 00/16] remove eight obsolete architectures)

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On Thu, Mar 15, 2018 at 09:56:46AM -0700, Joe Perches wrote:
> I have a patchset that creates a vsprintf extension for
> print_vma_addr and removes all the uses similar to the
> print_symbol() removal.
> 
> This now avoids any possible printk interleaving.
> 
> Unfortunately, without some #ifdef in vsprintf, which
> I would like to avoid, it increases the nommu kernel
> size by ~500 bytes.
> 
> Anyone think this is acceptable?
> 
> Here's the overall patch, but I have it as a series
> ---
>  Documentation/core-api/printk-formats.rst |  9 +++++
>  arch/arm64/kernel/traps.c                 | 13 +++----
>  arch/mips/mm/fault.c                      | 16 ++++-----
>  arch/parisc/mm/fault.c                    | 15 ++++----
>  arch/riscv/kernel/traps.c                 | 11 +++---
>  arch/s390/mm/fault.c                      |  7 ++--
>  arch/sparc/mm/fault_32.c                  |  8 ++---
>  arch/sparc/mm/fault_64.c                  |  8 ++---
>  arch/tile/kernel/signal.c                 |  9 ++---
>  arch/um/kernel/trap.c                     | 13 +++----
>  arch/x86/kernel/signal.c                  | 10 ++----
>  arch/x86/kernel/traps.c                   | 18 ++++------
>  arch/x86/mm/fault.c                       | 12 +++----
>  include/linux/mm.h                        |  1 -
>  lib/vsprintf.c                            | 58 ++++++++++++++++++++++++++-----
>  mm/memory.c                               | 33 ------------------
>  16 files changed, 112 insertions(+), 129 deletions(-)

This doesn't feel like a huge win since it's only called ~once per
architecture.  I'd be more excited if it made the printing of the whole
thing standardised; eg we have a print_fault() function in mm/memory.c
which takes a suitable set of arguments.
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