Add 'fallthrough' pseudo-keyword to enable the removal of comments like '/* fallthrough */'. Add a script to convert the fallthrough comments. The script can be run over any single file or treewide. For instance, a treewide conversion can be done using: $ git ls-files -- '*.[ch]' | \ xargs scripts/cvt_style.pl -o --convert=fallthrough This currently produces: $ git diff --shortstat 1839 files changed, 4377 insertions(+), 4698 deletions(-) Example fallthrough conversion produced by the script: $ scripts/cvt_style.pl -o --convert=fallthrough arch/arm/mm/alignment.c a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c @@ -695,8 +695,7 @@ thumb2arm(u16 tinstr) return subset[(L<<1) | ((tinstr & (1<<8)) >> 8)] | (tinstr & 255); /* register_list */ } - /* Else, fall through - for illegal instruction case */ - + fallthrough; /* for illegal instruction case */ default: return BAD_INSTR; } @@ -751,8 +750,7 @@ do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs, case 0xe8e0: case 0xe9e0: poffset->un = (tinst2 & 0xff) << 2; - /* Fall through */ - + fallthrough; case 0xe940: case 0xe9c0: return do_alignment_ldrdstrd; Joe Perches (4): net: sctp: Rename fallthrough label to unhandled compiler_attributes.h: Add 'fallthrough' pseudo keyword for switch/case use Documentation/process: Add fallthrough pseudo-keyword scripts/cvt_style.pl: Tool to reformat sources in various ways Documentation/process/coding-style.rst | 2 +- Documentation/process/deprecated.rst | 33 +- include/linux/compiler_attributes.h | 17 + net/sctp/sm_make_chunk.c | 12 +- scripts/cvt_style.pl | 808 +++++++++++++++++++++++++++++++++ 5 files changed, 855 insertions(+), 17 deletions(-) create mode 100755 scripts/cvt_style.pl -- 2.15.0
