On 06/25/2017 10:12 AM, Enrico Weigelt, metux IT consult wrote:
> Adding a new format conversion for *printf() and friends.
>
> If CONFIG_ERRNO_PRINTF_VERBOSE is enabled, prints human-readable
> strerror()-like texts, otherwise just the number.
> ---
> lib/Kconfig | 19 +++++++
> lib/vsprintf.c | 172
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
> 2 files changed, 189 insertions(+), 2 deletions(-)
>
> diff --git a/lib/Kconfig b/lib/Kconfig
> index 0c8b78a9ae2e..b28ab2162435 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -7,6 +7,25 @@ config BINARY_PRINTF
>
> menu "Library routines"
>
> +config ERRNO_PRINTF
> + bool "printf conversion %M for errno codes"
> + default n
> + help
> + This option adds an %M modifier for *printf() for errno values.
> + (and callers like printk() etc)
> +
> + In conjunction with ERRNO_PRINTF_VERBOSE, it prints human readable
> + strerror()-like textsm, otherwise just numeric values
text, values.
> +
> +config ERRNO_PRINTF_VERBOSE
> + bool "Verbose errno strings"
> + default y
> + depends on ERRNO_PRINTF
> + help
> + Enable verbose error strings for ERRNO_PRINTF.
> +
> + Small embedded systems might disable it for reducing kernel size.
> +
> config RAID6_PQ
> tristate
>
--
~Randy
