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[S390] cio: Export chsc_error_from_response().

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Make chsc_error_from_response() available to chsc callers outside
of chsc.c (namely qdio) to avoid duplicating error checking code.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Cornelia Huck 2008-07-17 17:16:47 +02:00 committed by Heiko Carstens
parent b9993a38a9
commit dae39843f4
2 changed files with 10 additions and 1 deletions
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9
drivers/s390/cio/chsc.c
View File

@ -27,7 +27,13 @@
static void *sei_page;
static int chsc_error_from_response(int response)
/**
* chsc_error_from_response() - convert a chsc response to an error
* @response: chsc response code
*
* Returns an appropriate Linux error code for @response.
*/
int chsc_error_from_response(int response)
{
switch (response) {
case 0x0001:
@ -45,6 +51,7 @@ static int chsc_error_from_response(int response)
return -EIO;
}
}
EXPORT_SYMBOL_GPL(chsc_error_from_response);
struct chsc_ssd_area {
struct chsc_header request;

2
drivers/s390/cio/chsc.h
View File

@ -101,4 +101,6 @@ void chsc_chp_online(struct chp_id chpid);
void chsc_chp_offline(struct chp_id chpid);
int chsc_get_channel_measurement_chars(struct channel_path *chp);
int chsc_error_from_response(int response);
#endif