linux/drivers/tty/vt, branch v4.0

vt: provide notifications on selection changes

2015-02-02T18:09:54Z

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

2015-01-09T22:39:52Z

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

2015-01-09T22:39:52Z

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

2014-11-26T01:06:38Z

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

2014-11-22T15:48:51Z

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.

2014-11-10T03:42:04Z

This resolves a merge issue with drivers/tty/serial/8250/8250_mtk.c Signed-off-by: Greg Kroah-Hartman

tty:vt remove obsolete struct initializer

2014-11-06T04:22:47Z

This patch fixes sparse warning: "obsolete struct initializer, use C99 syntax" Signed-off-by: Peng Fan Signed-off-by: Greg Kroah-Hartman

vt: Remove vt_get_kmsg_redirect() from uapi header

2014-11-06T04:18:30Z

vt_get_kmsg_redirect() only has meaning to the console driver as an alias for calling vt_kmsg_redirect(). Move the macro definition to the only source file which uses it; remove from uapi/linux/vt.h Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty/vt: don't set font mappings on vc not supporting this

2014-11-06T04:12:02Z

We can call this function for a dummy console that doesn't support setting the font mapping, which will result in a null ptr BUG. So check for this case and return error for consoles w/o font mapping support. Reference: https://bugzilla.kernel.org/show_bug.cgi?id=59321 Signed-off-by: Imre Deak Cc: stable Signed-off-by: Greg Kroah-Hartman

tty/vt/keyboard: Resolve many shadow warnings

2014-09-08T23:30:43Z

Many local variables were given the same name as a global. This is valid, but generates many shadow warnings in W=2 builds. Resolve them by changing the local names. Also change local variables named "up" because they shadow the semaphore "up" function. Also moved the outer declaration of the variable "a" because it is only used in one block, and that resolves all of the shadow warnings for the other declarations of "a" that have different types. Change diacr => dia, kbd => kb, rep => rpt, up => udp. Signed-off-by: Mark Rustad Signed-off-by: Jeff Kirsher Signed-off-by: Greg Kroah-Hartman