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authorKees Cook <keescook@chromium.org>2016-07-25 23:50:36 +0300
committerKees Cook <keescook@chromium.org>2016-07-25 23:50:36 +0300
commit74e630a7582e6b3cb39559d712a0049f08dea8a0 (patch)
tree98a752412dcfc74d802024c1d9e8c541b93174f9 /drivers/tty/vt/keyboard.c
parent35da60941e44dbf57868e67686dd24cc1a33125a (diff)
parent523d939ef98fd712632d93a5a2b588e477a7565e (diff)
downloadlinux-74e630a7582e6b3cb39559d712a0049f08dea8a0.tar.xz
Merge tag 'v4.7' into for-linus/pstore
Linux 4.7
Diffstat (limited to 'drivers/tty/vt/keyboard.c')
-rw-r--r--drivers/tty/vt/keyboard.c30
1 files changed, 9 insertions, 21 deletions
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index f973bfce5d08..1e93a37e27f0 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -366,34 +366,22 @@ static void to_utf8(struct vc_data *vc, uint c)
static void do_compute_shiftstate(void)
{
- unsigned int i, j, k, sym, val;
+ unsigned int k, sym, val;
shift_state = 0;
memset(shift_down, 0, sizeof(shift_down));
- for (i = 0; i < ARRAY_SIZE(key_down); i++) {
-
- if (!key_down[i])
+ for_each_set_bit(k, key_down, min(NR_KEYS, KEY_CNT)) {
+ sym = U(key_maps[0][k]);
+ if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
continue;
- k = i * BITS_PER_LONG;
-
- for (j = 0; j < BITS_PER_LONG; j++, k++) {
-
- if (!test_bit(k, key_down))
- continue;
+ val = KVAL(sym);
+ if (val == KVAL(K_CAPSSHIFT))
+ val = KVAL(K_SHIFT);
- sym = U(key_maps[0][k]);
- if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
- continue;
-
- val = KVAL(sym);
- if (val == KVAL(K_CAPSSHIFT))
- val = KVAL(K_SHIFT);
-
- shift_down[val]++;
- shift_state |= (1 << val);
- }
+ shift_down[val]++;
+ shift_state |= BIT(val);
}
}