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| author | Pierre Morel <pmorel@linux.vnet.ibm.com> | 2015-10-26 11:13:18 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-11-03 14:40:50 +0100 |
| commit | e510f681d27d402d74dc7b81e13db118e4180937 (patch) | |
| tree | 696e10adb00c80651acf5ca890e6af8601e0f678 /drivers/s390 | |
| parent | s390/css: unneeded initialization in for_each_subchannel (diff) | |
| download | linux-e510f681d27d402d74dc7b81e13db118e4180937.tar.xz linux-e510f681d27d402d74dc7b81e13db118e4180937.zip | |
s390/cio: de-duplicate subchannel validation
cio_validate_io_subchannel() and cio_validate_msg_subchannel() are
identical, as the called functions already take care about the
differences between subchannel types.
Just inline the code into the only user,
cio_validate_subchannel(), instead.
Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/cio/cio.c | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 0cc65b229a9c..b5620e818d6b 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -476,26 +476,6 @@ static int cio_check_devno_blacklisted(struct subchannel *sch) return 0; } -static int cio_validate_io_subchannel(struct subchannel *sch) -{ - /* Initialization for io subchannels. */ - if (!css_sch_is_valid(&sch->schib)) - return -ENODEV; - - /* Devno is valid. */ - return cio_check_devno_blacklisted(sch); -} - -static int cio_validate_msg_subchannel(struct subchannel *sch) -{ - /* Initialization for message subchannels. */ - if (!css_sch_is_valid(&sch->schib)) - return -ENODEV; - - /* Devno is valid. */ - return cio_check_devno_blacklisted(sch); -} - /** * cio_validate_subchannel - basic validation of subchannel * @sch: subchannel structure to be filled out @@ -533,10 +513,11 @@ int cio_validate_subchannel(struct subchannel *sch, struct subchannel_id schid) switch (sch->st) { case SUBCHANNEL_TYPE_IO: - err = cio_validate_io_subchannel(sch); - break; case SUBCHANNEL_TYPE_MSG: - err = cio_validate_msg_subchannel(sch); + if (!css_sch_is_valid(&sch->schib)) + err = -ENODEV; + else + err = cio_check_devno_blacklisted(sch); break; default: err = 0; |