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9a5ab8bf1d
Turn err() and info() macros into functions. In order to avoid naming conflicts with variables in the code, rename them as p_err() and p_info() respectively. The behavior of these functions is similar to the one of the macros for plain output. However, when JSON output is requested, these macros return a JSON-formatted "error" object instead of printing a message to stderr. To handle error messages correctly with JSON, a modification was brought to their behavior nonetheless: the functions now append a end-of-line character at the end of the message. This way, we can remove end-of-line characters at the end of the argument strings, and not have them in the JSON output. All error messages are formatted to hold in a single call to p_err(), in order to produce a single JSON field. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>