lwn.git/arch/s390/pci/pci_debug.c, branch v4.4.30

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2015-04-20T17:15:33+00:00

Pull more s390 updates from Martin Schwidefsky: "The big thing in this second merge for s390 is the new eBPF JIT from Michael which replaces the old 32-bit backend. The remaining commits are bug fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: add locking for fmb access s390/pci: extract software counters from fmb s390/dasd: Fix unresumed device after suspend/resume having no paths s390/dasd: fix unresumed device after suspend/resume s390/dasd: fix inability to set a DASD device offline s390/mm: Fix memory hotplug for unaligned standby memory s390/bpf: Add s390x eBPF JIT compiler backend s390: Use bool function return values of true/false not 1/0

s390: remove use of seq_printf return value

2015-04-15T23:35:25+00:00

The seq_printf return value, because it's frequently misused, will eventually be converted to void. See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to seq_has_overflowed() and make public") Signed-off-by: Joe Perches Acked-by: Sebastian Ott Cc: Gerald Schaefer Cc: Peter Oberparleiter Cc: Martin Schwidefsky Cc: Heiko Carstens Signed-off-by: Linus Torvalds

s390/pci: add locking for fmb access

2015-04-15T10:23:53+00:00

Function measurement can be toggled at runtime. Make sure that all access to the fmb is protected via a mutex. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

s390/pci: extract software counters from fmb

2015-04-15T10:23:52+00:00

The software counters are not a part of the function measurement block. Also we do not check for zdev->fmb != NULL when using these counters (function measurement can be toggled at runtime). Just move the software counters to struct zpci_dev. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

s390/pci: Deletion of unnecessary checks before the function call "debug_unregister"

2014-11-28T08:47:20+00:00

The debug_unregister() function performs also input parameter validation. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

s390/pci: fix kmsg component

2014-07-22T07:26:21+00:00

KMSG_COMPONENT has to be defined instead of COMPONENT. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky

s390: improve debug feature usage

2014-02-21T07:50:23+00:00

The maximum usable buffer size of the s390 debug feature (when using the sprintf_view) is 11 * sizeof(long) (1 pointer for the format string + 10 arguments). When a larger buffer size is specified the additional memory is unused and wasted per debug entry. So reducing the buffer size to its maximum (or to the actual buffer size used) will make more precious debug feature space usable. For pci_msg, chsc_msg, and cio_crw we use the additional usable dbf space to reduce the number of allocated pages. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

s390/pci: remove per device debug attribute

2013-06-26T19:10:27+00:00

The per-pci-device 'debug' attribute is ill defined. For each device it prints the same information, the adapter interrupt bit vector for irq numbers 0 & 1, the start of the global interrupt summary vector and the global irq retries counter. Just remove the attribute and the associated code. Signed-off-by: Martin Schwidefsky

s390/pci: debug device states

2013-04-17T12:07:35+00:00

Use the debugfs to keep track of a pci function's status changes. Reviewed-by: Gerald Schaefer Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

new helper: file_inode(file)

2013-02-23T04:31:31+00:00

Signed-off-by: Al Viro