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treewide: Use fallthrough pseudo-keyword

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Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
This commit is contained in:
Gustavo A. R. Silva
2020-08-23 17:36:59 -05:00
parent d012a7190f
commit df561f6688
1148 changed files with 2667 additions and 2737 deletions
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6
kernel/debug/gdbstub.c
View File

@@ -1046,14 +1046,14 @@ int gdb_serial_stub(struct kgdb_state *ks)
return DBG_PASS_EVENT;
}
#endif
/* Fall through */
fallthrough;
case 'C': /* Exception passing */
tmp = gdb_cmd_exception_pass(ks);
if (tmp > 0)
goto default_handle;
if (tmp == 0)
break;
/* Fall through - on tmp < 0 */
fallthrough; /* on tmp < 0 */
case 'c': /* Continue packet */
case 's': /* Single step packet */
if (kgdb_contthread && kgdb_contthread != current) {
@@ -1062,7 +1062,7 @@ int gdb_serial_stub(struct kgdb_state *ks)
break;
}
dbg_activate_sw_breakpoints();
/* Fall through - to default processing */
fallthrough; /* to default processing */
default:
default_handle:
error = kgdb_arch_handle_exception(ks->ex_vector,

4
kernel/debug/kdb/kdb_keyboard.c
View File

@@ -173,11 +173,11 @@ int kdb_get_kbd_char(void)
case KT_LATIN:
if (isprint(keychar))
break; /* printable characters */
/* fall through */
fallthrough;
case KT_SPEC:
if (keychar == K_ENTER)
break;
/* fall through */
fallthrough;
default:
return -1; /* ignore unprintables */
}

6
kernel/debug/kdb/kdb_support.c
View File

@@ -432,7 +432,7 @@ int kdb_getphysword(unsigned long *word, unsigned long addr, size_t size)
*word = w8;
break;
}
/* fall through */
fallthrough;
default:
diag = KDB_BADWIDTH;
kdb_printf("kdb_getphysword: bad width %ld\n", (long) size);
@@ -481,7 +481,7 @@ int kdb_getword(unsigned long *word, unsigned long addr, size_t size)
*word = w8;
break;
}
/* fall through */
fallthrough;
default:
diag = KDB_BADWIDTH;
kdb_printf("kdb_getword: bad width %ld\n", (long) size);
@@ -525,7 +525,7 @@ int kdb_putword(unsigned long addr, unsigned long word, size_t size)
diag = kdb_putarea(addr, w8);
break;
}
/* fall through */
fallthrough;
default:
diag = KDB_BADWIDTH;
kdb_printf("kdb_putword: bad width %ld\n", (long) size);