linux-toradex.git/drivers/s390/char, branch v3.0.52

compat: Re-add missing asm/compat.h include to fix compile breakage on s390

2012-03-19T15:57:59+00:00

For 3.0 stable kernel the backport of 048cd4e51d24ebf7f3552226d03c769d6ad91658
"compat: fix compile breakage on s390" breaks compilation...

Re-add a single #include  in order to fix this.

This patch is _not_ necessary for upstream, only for stable kernels
which include the "build fix" mentioned above.

One fix for arch/s390/kernel/setup.c was already sent and applied. But
we need a similar patch for drivers/s390/char/fs3270.c.

Signed-off-by: Jiri Slaby 
Signed-off-by: Greg Kroah-Hartman

compat: fix compile breakage on s390

2012-03-12T17:32:38+00:00

commit 048cd4e51d24ebf7f3552226d03c769d6ad91658 upstream.

The new is_compat_task() define for the !COMPAT case in
include/linux/compat.h conflicts with a similar define in
arch/s390/include/asm/compat.h.

This is the minimal patch which fixes the build issues.

Signed-off-by: Heiko Carstens 
Signed-off-by: Linus Torvalds 
Cc: Jonathan Nieder 
Signed-off-by: Greg Kroah-Hartman

[S390] irq: merge irq.c and s390_ext.c

2011-05-26T07:48:24+00:00

Merge irq.c and s390_ext.c into irq.c. That way all external interrupt
related functions are together.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] irq: fix service signal external interrupt handling

2011-05-26T07:48:24+00:00

Interrupt sources like pfault, sclp, dasd_diag and virtio all use the
service signal external interrupt subclass mask in control register 0
to enable and disable the corresponding interrupt.
Because no reference counting is implemented each subsystem thinks it
is the only user of subclass and sets and clears the bit like it wants.
This leads to case that unloading the dasd diag module under z/VM
causes both sclp and pfault interrupts to be masked. The result will
be locked up system sooner or later.
Fix this by introducing a new way to set (register) and clear
(unregister) the service signal subclass mask bit in cr0.
Also convert all drivers.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] get CPC image name

2011-05-23T08:24:32+00:00

Provide sysfs attributes that contain the CPC name and the HMC network
name of the machine the operating system is running on. This information
is retrieved with the operation communication parameters (OCF) sclp
interface.

Signed-off-by: Martin Schwidefsky

[S390] sclp: event buffer dissection

2011-05-23T08:24:31+00:00

Move gds vector/subvector find functions to the sclp header file.
Simplify event buffer dissection in sclp tty code.

Signed-off-by: Martin Schwidefsky

[S390] sclp: remove unnecessary sendmask check

2011-05-23T08:24:31+00:00

The sendmask check is not needed. Remove it.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] tape: remove unused/not handled return codes

2011-05-23T08:24:29+00:00

Return codes are on purpose not handled or used. So remove them.

Acked-by: Michael Holzheu 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] monwriter: fix return code handling

2011-05-23T08:24:29+00:00

Fix return code handling within monwrite_new_hdr(). Return code handling
is everwhere implemented, the return code of the diagnose function was
just not passed.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] get rid of unused variables

2011-05-23T08:24:28+00:00

Remove trivially unused variables as detected with -Wunused-but-set-variable.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky