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authorHeiko Carstens <heiko.carstens@de.ibm.com>2006-08-30 14:33:35 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-08-30 14:33:35 +0200
commit292888c81e74115db5e5a4a838f730a7c3662982 (patch)
tree16f7b7bf39cd8a72fa8d3aa5b71c8dc890b57c96 /drivers/s390/cio/chsc.c
parent8f61701bdf536c7a80f0f614bac91c7883804c4c (diff)
[S390] cio: kernel stack overflow.
Use different kind of assignment to make sure gcc doesn't create code that creates temp variables on the stack, assigns values to it and copies the content of the whole temp variable to the destination. This reduces stack usage of e.g. ccwgroup_driver_register from 976 to 48 bytes instead. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/chsc.c')
-rw-r--r--drivers/s390/cio/chsc.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 61ce3f1d522..6405e9bd6eb 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -1391,10 +1391,8 @@ new_channel_path(int chpid)
/* fill in status, etc. */
chp->id = chpid;
chp->state = 1;
- chp->dev = (struct device) {
- .parent = &css[0]->device,
- .release = chp_release,
- };
+ chp->dev.parent = &css[0]->device;
+ chp->dev.release = chp_release;
snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp0.%x", chpid);
/* Obtain channel path description and fill it in. */