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staging: vt6656: key: Mark expected switch fall-throughs

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In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/staging/vt6656/key.c: In function ‘vnt_set_keymode’:
drivers/staging/vt6656/key.c:70:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   key->hw_key_idx = entry;
   ~~~~~~~~~~~~~~~~^~~~~~~
drivers/staging/vt6656/key.c:71:2: note: here
  case VNT_KEY_ALLGROUP:
  ^~~~
drivers/staging/vt6656/key.c:73:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (onfly_latch)
      ^
drivers/staging/vt6656/key.c:75:2: note: here
  case VNT_KEY_GROUP_ADDRESS:
  ^~~~
drivers/staging/vt6656/key.c:76:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
   key_mode |= mode;
   ~~~~~~~~~^~~~~~~
drivers/staging/vt6656/key.c:77:2: note: here
  case VNT_KEY_GROUP:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gustavo A. R. Silva 2019-02-18 12:52:01 -06:00 committed by Greg Kroah-Hartman
parent 880cbfa024
commit 3623d4deff
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/vt6656/key.c
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@ -63,17 +63,19 @@ static int vnt_set_keymode(struct ieee80211_hw *hw, u8 *mac_addr,
}
switch (key_type) {
/* fallthrough */
case VNT_KEY_DEFAULTKEY:
/* default key last entry */
entry = MAX_KEY_TABLE - 1;
key->hw_key_idx = entry;
/* fall through */
case VNT_KEY_ALLGROUP:
key_mode |= VNT_KEY_ALLGROUP;
if (onfly_latch)
key_mode |= VNT_KEY_ONFLY_ALL;
/* fall through */
case VNT_KEY_GROUP_ADDRESS:
key_mode |= mode;
/* fall through */
case VNT_KEY_GROUP:
key_mode |= (mode << 4);
key_mode |= VNT_KEY_GROUP;