From 7bea96fd22a8fd19f90817405b4abe032317a0e3 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 8 Oct 2006 22:49:34 +0100 Subject: [PATCH] [PATCH] uml pt_regs fixes Real fix for UML pt_regs stuff. Note set_irq_regs() logics in there... Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- arch/um/drivers/line.c | 7 +++---- arch/um/drivers/mconsole_kern.c | 8 ++++---- arch/um/drivers/net_kern.c | 2 +- arch/um/drivers/port_kern.c | 4 ++-- arch/um/drivers/ubd_kern.c | 2 +- arch/um/drivers/xterm_kern.c | 2 +- arch/um/include/irq_kern.h | 5 ++--- arch/um/kernel/irq.c | 15 ++++++++------- arch/um/kernel/sigio.c | 2 +- arch/um/kernel/time.c | 2 +- 10 files changed, 24 insertions(+), 25 deletions(-) diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index cfd9f01fd4..426633e5d6 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -20,7 +20,7 @@ #define LINE_BUFSIZE 4096 -static irqreturn_t line_interrupt(int irq, void *data, struct pt_regs *unused) +static irqreturn_t line_interrupt(int irq, void *data) { struct chan *chan = data; struct line *line = chan->line; @@ -364,8 +364,7 @@ void line_unthrottle(struct tty_struct *tty) reactivate_chan(&line->chan_list, line->driver->read_irq); } -static irqreturn_t line_write_interrupt(int irq, void *data, - struct pt_regs *unused) +static irqreturn_t line_write_interrupt(int irq, void *data) { struct chan *chan = data; struct line *line = chan->line; @@ -712,7 +711,7 @@ struct winch { struct tty_struct *tty; }; -static irqreturn_t winch_interrupt(int irq, void *data, struct pt_regs *unused) +static irqreturn_t winch_interrupt(int irq, void *data) { struct winch *winch = data; struct tty_struct *tty; diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index a67dcbd78d..d08bd036cc 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -74,8 +74,7 @@ static void mc_work_proc(void *unused) static DECLARE_WORK(mconsole_work, mc_work_proc, NULL); -static irqreturn_t mconsole_interrupt(int irq, void *dev_id, - struct pt_regs *regs) +static irqreturn_t mconsole_interrupt(int irq, void *dev_id) { /* long to avoid size mismatch warnings from gcc */ long fd; @@ -674,8 +673,9 @@ static void with_console(struct mc_request *req, void (*proc)(void *), static void sysrq_proc(void *arg) { char *op = arg; - - handle_sysrq(*op, ¤t->thread.regs, NULL); + struct pt_regs *old_regs = set_irq_regs(¤t->thread.regs); + handle_sysrq(*op, NULL); + set_irq_regs(old_regs); } void mconsole_sysrq(struct mc_request *req) diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c index c1c5604752..ec9eb8bd94 100644 --- a/arch/um/drivers/net_kern.c +++ b/arch/um/drivers/net_kern.c @@ -77,7 +77,7 @@ static void uml_dev_close(void* dev) dev_close( (struct net_device *) dev); } -irqreturn_t uml_net_interrupt(int irq, void *dev_id, struct pt_regs *regs) +irqreturn_t uml_net_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct uml_net_private *lp = dev->priv; diff --git a/arch/um/drivers/port_kern.c b/arch/um/drivers/port_kern.c index 73755f37a8..ce9f3733f7 100644 --- a/arch/um/drivers/port_kern.c +++ b/arch/um/drivers/port_kern.c @@ -47,7 +47,7 @@ struct connection { struct port_list *port; }; -static irqreturn_t pipe_interrupt(int irq, void *data, struct pt_regs *regs) +static irqreturn_t pipe_interrupt(int irq, void *data) { struct connection *conn = data; int fd; @@ -152,7 +152,7 @@ void port_work_proc(void *unused) DECLARE_WORK(port_work, port_work_proc, NULL); -static irqreturn_t port_interrupt(int irq, void *data, struct pt_regs *regs) +static irqreturn_t port_interrupt(int irq, void *data) { struct port_list *port = data; diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index f0b0668458..bc458f5792 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -524,7 +524,7 @@ static void ubd_handler(void) do_ubd_request(ubd_queue); } -static irqreturn_t ubd_intr(int irq, void *dev, struct pt_regs *unused) +static irqreturn_t ubd_intr(int irq, void *dev) { ubd_handler(); return(IRQ_HANDLED); diff --git a/arch/um/drivers/xterm_kern.c b/arch/um/drivers/xterm_kern.c index 6036ec8589..a4ce7058e1 100644 --- a/arch/um/drivers/xterm_kern.c +++ b/arch/um/drivers/xterm_kern.c @@ -21,7 +21,7 @@ struct xterm_wait { int new_fd; }; -static irqreturn_t xterm_interrupt(int irq, void *data, struct pt_regs *regs) +static irqreturn_t xterm_interrupt(int irq, void *data) { struct xterm_wait *xterm = data; int fd; diff --git a/arch/um/include/irq_kern.h b/arch/um/include/irq_kern.h index c222d56b14..81beb18412 100644 --- a/arch/um/include/irq_kern.h +++ b/arch/um/include/irq_kern.h @@ -10,12 +10,11 @@ #include "asm/ptrace.h" extern int um_request_irq(unsigned int irq, int fd, int type, - irqreturn_t (*handler)(int, void *, - struct pt_regs *), + irqreturn_t (*handler)(int, void *), unsigned long irqflags, const char * devname, void *dev_id); extern int init_aio_irq(int irq, char *name, - irqreturn_t (*handler)(int, void *, struct pt_regs *)); + irqreturn_t (*handler)(int, void *)); #endif diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index 7c41dabe7a..3c01c2bc97 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -355,14 +355,16 @@ void forward_interrupts(int pid) */ unsigned int do_IRQ(int irq, union uml_pt_regs *regs) { - irq_enter(); - __do_IRQ(irq); - irq_exit(); - return 1; + struct pt_regs *old_regs = set_irq_regs((struct pt_regs *)regs); + irq_enter(); + __do_IRQ(irq); + irq_exit(); + set_irq_regs(old_regs); + return 1; } int um_request_irq(unsigned int irq, int fd, int type, - irqreturn_t (*handler)(int, void *, struct pt_regs *), + irqreturn_t (*handler)(int, void *), unsigned long irqflags, const char * devname, void *dev_id) { @@ -423,8 +425,7 @@ void __init init_IRQ(void) } } -int init_aio_irq(int irq, char *name, irqreturn_t (*handler)(int, void *, - struct pt_regs *)) +int init_aio_irq(int irq, char *name, irqreturn_t (*handler)(int, void *)) { int fds[2], err; diff --git a/arch/um/kernel/sigio.c b/arch/um/kernel/sigio.c index 0ad755ceb2..2b0ab43830 100644 --- a/arch/um/kernel/sigio.c +++ b/arch/um/kernel/sigio.c @@ -17,7 +17,7 @@ /* Protected by sigio_lock() called from write_sigio_workaround */ static int sigio_irq_fd = -1; -static irqreturn_t sigio_interrupt(int irq, void *data, struct pt_regs *unused) +static irqreturn_t sigio_interrupt(int irq, void *data) { char c; diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index a92965f8f9..2e354b3ca0 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c @@ -86,7 +86,7 @@ static inline unsigned long long get_time(void) return nsecs; } -irqreturn_t um_timer(int irq, void *dev, struct pt_regs *regs) +irqreturn_t um_timer(int irq, void *dev) { unsigned long long nsecs; unsigned long flags; -- 2.39.5