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SubjectRe: [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 <alastair@d-silva.org>
>
> In order to support additional features in hex_dump_to_buffer, replace
> the ascii bool parameter with flags.
>
> Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
> ---
> 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

> drm_printf(m, "[%04zx] %s\n", pos, line);
>
> prev = buf + pos;
> diff --git a/include/linux/printk.h b/include/linux/printk.h
> index c014e5573665..82975853c400 100644
> --- a/include/linux/printk.h
> +++ b/include/linux/printk.h
> @@ -493,7 +493,7 @@ enum {
>
> extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
> int groupsize, char *linebuf, size_t linebuflen,
> - bool ascii);
> + u64 flags);

I wonder how fancy hex_dump could be. IMHO, u32 should be enough.
The last famous words ;-)

Best Regards,
Petr

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