litmus-rt.git/drivers/tty/vt, branch test

tty: Use static attribute groups for sysfs entries

2015-03-26T15:10:10+00:00

Instead of manual calls of device_create_file() and
device_remove_file(), pass the static attribute groups using
device_create_with_groups().

Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

vt: use msecs_to_jiffies for time conversion

2015-03-07T03:02:26+00:00

Converting milliseconds to jiffies by "val * HZ / 1000" is technically
OK but msecs_to_jiffies(val) is the cleaner solution and handles all
corner cases correctly. This is a minor API consolidation only and
should make things more readable.

Signed-off-by: Nicholas Mc Guire 
Reviewed-by: David Herrmann 
Signed-off-by: Greg Kroah-Hartman

tty: vt/vt: fix sparse warning

2015-03-07T03:02:26+00:00

this patch fixes following sparse warning:
vt.c:1240:12: warning: symbol 'rgb_from_256' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar 
Signed-off-by: Greg Kroah-Hartman

vt: vt_ioctl: use msecs_to_jiffies for time conversion

2015-03-07T03:02:26+00:00

Converting milliseconds to jiffies by "val * HZ / 1000" is technically
OK but msecs_to_jiffies(val) is the cleaner solution and handles all
corner cases correctly. This is a minor API consolidation only and
should make things more readable.

Signed-off-by: Nicholas Mc Guire 
Signed-off-by: Greg Kroah-Hartman

vt: provide notifications on selection changes

2015-02-02T18:09:54+00:00

The vcs device's poll/fasync support relies on the vt notifier to signal
changes to the screen content.  Notifier invocations were missing for
changes that comes through the selection interface though.  Fix that.

Tested with BRLTTY 5.2.

Signed-off-by: Nicolas Pitre 
Cc: Dave Mielke 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

vt: fix locking around vt_bind/vt_unbind

2015-01-09T22:39:52+00:00

Currently vt_bind and vt_unbind access at least the con_driver object
and registered_con_driver array without holding the console lock. Fix
this by locking around the whole function in each case.

Signed-off-by: Imre Deak 
Reviewed-by: Peter Hurley 
Reviewed-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

vt: fix check for system/busy console drivers when unregistering them

2015-01-09T22:39:52+00:00

The default console driver (conswitchp) and busy drivers bound to a
console (as reported by con_is_bound()) shouldn't be unregistered.
System console drivers (without the CON_DRIVER_FLAG_MODULE flag) can be
unregistered, provided they are neither default nor busy. The current
code checks for the CON_DRIVER_FLAG_INIT flag but this doesn't make
sense: this flag is set for a driver whenever its associated console's
con_startup() function is called, which first happens when the console
driver is registered (so before the console gets bound) and gets cleared
when the console gets unbound. The purpose of this flag is to show if we
need to call con_startup() on a console before we use it.

Based on the above, do_unregister_con_driver() in its current form will
allow unregistering a console driver only if it was never bound, but
will refuse to unregister one that was bound and later unbound.

Fix this by dropping the CON_DRIVER_FLAG_INIT check, allowing
unregistering of any console driver provided that it's not the default
one and it's not busy.

v2:
- reword the third paragraph to clarify how the fix works (Peter Hurley)
v3:
- unchanged
v4:
- Allow unregistering a system console driver too, needed by i915 to
  unregister vgacon. Update commit description accordingly. (Daniel)

Signed-off-by: Imre Deak 
Reviewed-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

tty: pr_warning->pr_warn and logging neatening

2014-11-26T01:06:38+00:00

Convert the pr_warning to the more common pr_warn.

Other miscellanea:

o Convert unusual PR_FMT define and uses to pr_fmt
o Remove unnecessary OOM message
o Fix grammar in an error message
o Convert a pr_warning with a KERN_ERR to pr_err

Signed-off-by: Joe Perches 
Signed-off-by: Greg Kroah-Hartman

vt: Fix build breakage when !CONFIG_VT_CONSOLE

2014-11-22T15:48:51+00:00

Commit 68952076e9226cc23ebce66d3fc2fdb8b6c04c30 ("vt: Remove
vt_get_kmsg_redirect() from uapi header") fails to compile if
!CONFIG_VT_CONSOLE.

Move macro definition for vt_get_kmsg_redirect() up with file-scope
function declarations.

Reported-by: Jim Davis 
Signed-off-by: Peter Hurley 
Signed-off-by: Greg Kroah-Hartman

Merge 3.18-rc4 into tty-next.

2014-11-10T03:42:04+00:00

This resolves a merge issue with drivers/tty/serial/8250/8250_mtk.c

Signed-off-by: Greg Kroah-Hartman