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arcnet: com90io: Mark expected switch fall-throughs 

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings (Building: powerpc allyesconfig):

drivers/net/arcnet/com90io.c: In function 'com90io_setup':
include/linux/printk.h:304:2: warning: this statement may fall through [-Wimplicit-fallthrough=]
  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/arcnet/com90io.c:365:3: note: in expansion of macro 'pr_err'
   pr_err("Too many arguments\n");
   ^~~~~~
drivers/net/arcnet/com90io.c:366:2: note: here
  case 2:  /* IRQ */
  ^~~~
drivers/net/arcnet/com90io.c:367:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
   irq = ints[2];
   ~~~~^~~~~~~~~
drivers/net/arcnet/com90io.c:368:2: note: here
  case 1:  /* IO address */
  ^~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gustavo A. R. Silva 2019-07-29 06:13:20 -05:00 committed by David S. Miller
parent f3eb2c334a
commit 56f37a3fa2
1 changed files with 2 additions and 0 deletions
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2
drivers/net/arcnet/com90io.c
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@ -363,8 +363,10 @@ static int __init com90io_setup(char *s)
switch (ints[0]) {
default: /* ERROR */
pr_err("Too many arguments\n");
/* Fall through */
case 2: /* IRQ */
irq = ints[2];
/* Fall through */
case 1: /* IO address */
io = ints[1];
}