diff options
| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-11 13:34:38 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 21:16:12 +0300 |
| commit | 66f4e88cc69da7d9ec4d68cf370cc69742d4af81 (patch) | |
| tree | 9ba92c918c9aa2804e1413c82de7a4893a271fd3 /drivers | |
| parent | c7b95d5156a9ee70f800bd2e47a9eba677be73e1 (diff) | |
| download | linux-66f4e88cc69da7d9ec4d68cf370cc69742d4af81.tar.xz | |
x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm()
Using this helper allows us to avoid the in-kernel calls to the
sys_ioperm() syscall. The ksys_ prefix denotes that this function is meant
as a drop-in replacement for the syscall. In particular, it uses the same
calling convention as sys_ioperm().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: x86@kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/vt/vt_ioctl.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index d61be307256a..a78ad10a119b 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -57,7 +57,7 @@ extern struct tty_driver *console_driver; */ #ifdef CONFIG_X86 -#include <linux/syscalls.h> +#include <asm/syscalls.h> #endif static void complete_change_console(struct vc_data *vc); @@ -420,12 +420,12 @@ int vt_ioctl(struct tty_struct *tty, ret = -EINVAL; break; } - ret = sys_ioperm(arg, 1, (cmd == KDADDIO)) ? -ENXIO : 0; + ret = ksys_ioperm(arg, 1, (cmd == KDADDIO)) ? -ENXIO : 0; break; case KDENABIO: case KDDISABIO: - ret = sys_ioperm(GPFIRST, GPNUM, + ret = ksys_ioperm(GPFIRST, GPNUM, (cmd == KDENABIO)) ? -ENXIO : 0; break; #endif |