Re: [Qemu-devel] [PATCH v3 0/4] trace-events: print 0x before hex numbers

[Stefan Hajnoczi]

On Mon, Jul 31, 2017 at 07:01:31PM +0300, Vladimir Sementsov-Ogievskiy wrote:
> Hi all!
> 
> It is hard to read logs, when there are hex and dec numbers in one line, when
> hex number doesn't contain any letters and don't have '0x' prefix.
> 
> So, here is a complete solution for the problem:
> 
> - add information into CODING_STYLE
> - add a check into checkpatch.pl
> - fix current state
> 
> The new rule for the style is:
> 
> Hex numbers should be prefixed by '0x', except groups of numbers,
> separated by symbols ' ', '.', ':', '/', however '0x' can be used for
> numbers in such groups too. Flag '#' in number format is not allowed.
> 
> Note: checkpatch fails on checkpatch change (03) due to long lines.
> It is because checkpatch.pl is indented by tabs and when it checks
> for long lines it consider tabs as 8 spaces. Looks like nobody cares,
> so do I. I see two ways here:
>  -  s/\t/    /g
>  -  make exclusion in checkpatch.pl for checkpatch.pl to consider tabs
>     as 4 spaces, not 8.  However I don't want to fix it in the context
>     of these series.
> 
> v3: 01 - rewording
>     02 - adjust commit message - add two printf flags "'I" into a check
>          add Stefan's and Eric's r-bs
>     03 - fix commit message s/Accordingly/According/
>          add Stefan's r-b
>     04 - add Stefan's r-b
>          add Cornelia's a-b
> v2: almost everything (style, checkpatch, excluding number groups)
> V1: was a draft of the idea using two sed commands.
> 
> Vladimir Sementsov-Ogievskiy (4):
>   coding_style: add point about 0x in trace-events
>   trace-events: fix code style: %# -> 0x%
>   checkpatch: check trace-events code style
>   trace-events: fix code style: print 0x before hex numbers
> 
>  CODING_STYLE              |  35 +++++++++
>  accel/tcg/trace-events    |   2 +-
>  audio/trace-events        |   4 +-
>  block/trace-events        |  28 ++++----
>  hw/audio/trace-events     |   4 +-
>  hw/char/trace-events      |  12 ++--
>  hw/display/trace-events   |  14 ++--
>  hw/dma/trace-events       |  20 +++---
>  hw/i386/xen/trace-events  |  26 +++----
>  hw/input/trace-events     |   6 +-
>  hw/intc/trace-events      | 176 
> +++++++++++++++++++++++-----------------------
>  hw/isa/trace-events       |   4 +-
>  hw/misc/trace-events      |  78 ++++++++++----------
>  hw/net/trace-events       |  52 +++++++-------
>  hw/nvram/trace-events     |   2 +-
>  hw/pci/trace-events       |   4 +-
>  hw/ppc/trace-events       |  64 ++++++++---------
>  hw/s390x/trace-events     |  20 +++---
>  hw/scsi/trace-events      | 118 +++++++++++++++----------------
>  hw/sd/trace-events        |   4 +-
>  hw/timer/trace-events     |  20 +++---
>  hw/usb/trace-events       |  56 +++++++--------
>  hw/vfio/trace-events      |  44 ++++++------
>  hw/virtio/trace-events    |   6 +-
>  hw/xen/trace-events       |   8 +--
>  linux-user/trace-events   |  10 +--
>  migration/trace-events    |  36 +++++-----
>  nbd/trace-events          |  18 ++---
>  net/trace-events          |   4 +-
>  scripts/checkpatch.pl     |  19 +++++
>  target/arm/trace-events   |  10 +--
>  target/s390x/trace-events |   2 +-
>  target/sparc/trace-events |  30 ++++----
>  trace-events              |  20 +++---
>  34 files changed, 505 insertions(+), 451 deletions(-)
> 
> -- 
> 2.11.1
> 

Thanks, applied to my tracing tree:
https://github.com/stefanha/qemu/commits/tracing

Stefan

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