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authorJeff Dike <jdike@addtoit.com>2006-10-02 11:17:18 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-02 16:57:14 +0200
commitb68e31d0ebbcc909d1941f9f230c9d062a3a13d3 (patch)
treeb32902e5de02081cbb9eca49d7bb0b444e2b4f23 /arch/um/drivers/line.c
parent[PATCH] fs/inode.c tweaks (diff)
downloadlinux-b68e31d0ebbcc909d1941f9f230c9d062a3a13d3.tar.xz
linux-b68e31d0ebbcc909d1941f9f230c9d062a3a13d3.zip
[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 'arch/um/drivers/line.c')
-rw-r--r--arch/um/drivers/line.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 563ce7690a1e..24747a413785 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -642,9 +642,9 @@ int line_remove(struct line *lines, unsigned int num, int n)
}
struct tty_driver *line_register_devfs(struct lines *set,
- struct line_driver *line_driver,
- struct tty_operations *ops, struct line *lines,
- int nlines)
+ struct line_driver *line_driver,
+ const struct tty_operations *ops,
+ struct line *lines, int nlines)
{
int i;
struct tty_driver *driver = alloc_tty_driver(nlines);