• Josh Triplett's avatar
    checkpatch: check for quoted strings broken across lines · ca56dc09
    Josh Triplett authored
    
    
    checkpatch already makes an exception to the 80-column rule for quoted
    strings, and Documentation/CodingStyle recommends not splitting quoted
    strings across lines, because it breaks the ability to grep for the
    string.  Rather than just permitting this, actively warn about quoted
    strings split across lines.
    
    Test case:
    
    void context(void)
    {
    	struct { unsigned magic; const char *strdata; } foo[] = {
    		{ 42, "these strings"
    		      "do not produce warnings" },
    		{ 256, "though perhaps"
    		       "they should" },
    	};
    	pr_err("this string"
    	       " should produce a warning\n");
    	pr_err("this multi-line string\n"
    	       "should not produce a warning\n");
    	asm ("this asm\n\t"
    	     "should not produce a warning");
    }
    
    Results of checkpatch on that test case:
    
    WARNING: quoted string split across lines
    +	       " should produce a warning\n");
    
    total: 0 errors, 1 warnings, 15 lines checked
    Signed-off-by: default avatarJosh Triplett <josh@joshtriplett.org>
    Acked-by: default avatarJoe Perches <joe@perches.com>
    Cc: Andy Whitcroft <apw@canonical.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    ca56dc09
checkpatch.pl 94.9 KB