lib/os/printk.c: use ARG_UNUSED() for char_out()
Use ARG_UNUSED() within the function char_out() to handel unused param. Signed-off-by: Florian La Roche <Florian.LaRoche@gmail.com>
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@ -107,7 +107,7 @@ static int buf_char_out(int c, void *ctx_p)
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static int char_out(int c, void *ctx_p)
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{
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(void) ctx_p;
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ARG_UNUSED(ctx_p);
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return _char_out(c);
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}
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