On Sat 2019-04-13 09:31:27, Alastair D'Silva wrote:
> > -----Original Message-----
> > From: Petr Mladek <[email protected]>
> > Sent: Saturday, 13 April 2019 12:12 AM
> > To: Alastair D'Silva <[email protected]>
> > Cc: [email protected]; Jani Nikula <[email protected]>;
> Joonas
> > Lahtinen <[email protected]>; Rodrigo Vivi
> > <[email protected]>; David Airlie <[email protected]>; Daniel Vetter
> > <[email protected]>; Karsten Keil <[email protected]>; Jassi Brar
> > <[email protected]>; Tom Lendacky <[email protected]>;
> > David S. Miller <[email protected]>; Jose Abreu
> > <[email protected]>; Kalle Valo <[email protected]>;
> > Stanislaw Gruszka <[email protected]>; Benson Leung
> > <[email protected]>; Enric Balletbo i Serra
> > <[email protected]>; James E.J. Bottomley
> > <[email protected]>; Martin K. Petersen <[email protected]>;
> > Greg Kroah-Hartman <[email protected]>; Alexander Viro
> > <[email protected]>; Sergey Senozhatsky
> > <[email protected]>; Steven Rostedt <[email protected]>;
> > Andrew Morton <[email protected]>; intel-
> > [email protected]; [email protected]; linux-
> > [email protected]; [email protected];
> > [email protected]; [email protected]; linux-
> > [email protected]; [email protected];
> > [email protected]; [email protected]
> > Subject: Re: [PATCH 3/4] lib/hexdump.c: Replace ascii bool in
> > hex_dump_to_buffer with flags
> > 
> > On Wed 2019-04-10 13:17:19, Alastair D'Silva wrote:
> > > From: Alastair D'Silva <[email protected]>
> > >
> > > In order to support additional features in hex_dump_to_buffer, replace
> > > the ascii bool parameter with flags.
> > >
> > > Signed-off-by: Alastair D'Silva <[email protected]>
> > > ---
> > >  drivers/gpu/drm/i915/intel_engine_cs.c            |  2 +-
> > >  drivers/isdn/hardware/mISDN/mISDNisar.c           |  6 ++++--
> > >  drivers/mailbox/mailbox-test.c                    |  2 +-
> > >  drivers/net/ethernet/amd/xgbe/xgbe-drv.c          |  2 +-
> > >  drivers/net/ethernet/synopsys/dwc-xlgmac-common.c |  2 +-
> > >  drivers/net/wireless/ath/ath10k/debug.c           |  3 ++-
> > >  drivers/net/wireless/intel/iwlegacy/3945-mac.c    |  2 +-
> > >  drivers/platform/chrome/wilco_ec/debugfs.c        |  3 ++-
> > >  drivers/scsi/scsi_logging.c                       |  8 +++-----
> > >  drivers/staging/fbtft/fbtft-core.c                |  2 +-
> > >  fs/seq_file.c                                     |  3 ++-
> > >  include/linux/printk.h                            |  2 +-
> > >  lib/hexdump.c                                     | 15 ++++++++-------
> > >  lib/test_hexdump.c                                |  5 +++--
> > >  14 files changed, 31 insertions(+), 26 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c
> > > b/drivers/gpu/drm/i915/intel_engine_cs.c
> > > index 49fa43ff02ba..fb133e729f9a 100644
> > > --- a/drivers/gpu/drm/i915/intel_engine_cs.c
> > > +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
> > > @@ -1318,7 +1318,7 @@ static void hexdump(struct drm_printer *m, const
> > void *buf, size_t len)
> > >           WARN_ON_ONCE(hex_dump_to_buffer(buf + pos, len -
> > pos,
> > >                                           rowsize, sizeof(u32),
> > >                                           line, sizeof(line),
> > > -                                         false) >= sizeof(line));
> > > +                                         0) >= sizeof(line));
> > 
> > It might be more clear when we define:
> > 
> > #define HEXDUMP_BINARY 0
> 
> This feels unnecessary, and weird. Omitting the flag won't disable the hex
> output (as expected), and if you don't want hex output why call hexdump in
> the first place?

Why do we have HEXDUMP_ASCII then?
Why is the above funtion not using HEXDUMP_ASCII?
Who would call it with (HEXDUMP_ASCII | HEXDUMP_BINARY)?

Best Regards,
Petr
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