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authorJeff Dike <jdike@addtoit.com>2006-10-02 05:17:18 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-02 10:57:14 -0400
commitb68e31d0ebbcc909d1941f9f230c9d062a3a13d3 (patch)
treeb32902e5de02081cbb9eca49d7bb0b444e2b4f23 /drivers/char/rio/rio_linux.c
parented97bd37efd8ff7398d3a7eedf4bcbf245f5dad3 (diff)
[PATCH] const struct tty_operations
As part of an SMP cleanliness pass over UML, I consted a bunch of structures in order to not have to document their locking. One of these structures was a struct tty_operations. In order to const it in UML without introducing compiler complaints, the declaration of tty_set_operations needs to be changed, and then all of its callers need to be fixed. This patch declares all struct tty_operations in the tree as const. In all cases, they are static and used only as input to tty_set_operations. As an extra check, I ran an i386 allyesconfig build which produced no extra warnings. 53 drivers are affected. I checked the history of a bunch of them, and in most cases, there have been only a handful of maintenance changes in the last six months. serial_core.c was the busiest one that I looked at. Signed-off-by: Jeff Dike <jdike@addtoit.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/rio/rio_linux.c')
-rw-r--r--drivers/char/rio/rio_linux.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index 3fa80aaf4527..202a3b0945b7 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -727,7 +727,7 @@ static struct vpd_prom *get_VPD_PROM(struct Host *hp)
727 return &vpdp; 727 return &vpdp;
728} 728}
729 729
730static struct tty_operations rio_ops = { 730static const struct tty_operations rio_ops = {
731 .open = riotopen, 731 .open = riotopen,
732 .close = gs_close, 732 .close = gs_close,
733 .write = gs_write, 733 .write = gs_write,