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authorMartin Habets <errandir_news@mph.eclipse.co.uk>2007-12-11 14:37:04 +0300
committerDavid S. Miller <davem@sunset.davemloft.net>2007-12-12 18:36:34 +0300
commit58d784a5c754cd66ecd4791222162504d3c16c74 (patch)
treea25670e8dd1569cf5084af790873b246f45134c3 /drivers/serial/sunsab.c
parent4af75653031c6d454b4ace47c1536f0d2e727e3e (diff)
downloadlinux-58d784a5c754cd66ecd4791222162504d3c16c74.tar.xz
[SERIAL] sparc: Infrastructure to fix section mismatch bugs.
This patch against 2.6.23 sparc-2.6.git contains a number of minor cleanups of the sparc serial drivers. Initially I fixed this build warning: WARNING: vmlinux.o(.text+0x107a2c): Section mismatch: reference to .init.text:add_preferred_console (between 'sunserial_console_match' and 'sunserial_console_termios') which is done by declaring sunserial_console_match() as __init. This resulted in build warnings on sunserial_current_minor. To resolve these the variable was changed so it is no longer global, and to hide operations on it inside 2 new functions. These functions handle the UART minor handling code that is common to all sparc serial drivers. These changes allowed to clean up the uart counters in all the sparc serial drivers, and the administration of minor device numbers. Lastly, sunserial_console_termios() does not need to be exported since it is only called from non-modular code. Sadly, the following build warning still exists: WARNING: vmlinux.o(__ksymtab+0x2910): Section mismatch: reference to .init.text:sunserial_console_match (between '__ksymtab_sunserial_console_match' and '__ksymtab_sunserial_unregister_minors') This could be resolved by not exporting sunserial_console_match(), but this is not possible at the moment because it is being called from modular code. On the other hand, this is a bogus warning since it comes from a ksymtab section. Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/serial/sunsab.c')
-rw-r--r--drivers/serial/sunsab.c16
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index ff610c23314b..543f93741e6f 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -832,7 +832,6 @@ static struct uart_driver sunsab_reg = {
};
static struct uart_sunsab_port *sunsab_ports;
-static int num_channels;
#ifdef CONFIG_SERIAL_SUNSAB_CONSOLE
@@ -1102,8 +1101,8 @@ static int __init sunsab_init(void)
{
struct device_node *dp;
int err;
+ int num_channels = 0;
- num_channels = 0;
for_each_node_by_name(dp, "se")
num_channels += 2;
for_each_node_by_name(dp, "serial") {
@@ -1117,20 +1116,14 @@ static int __init sunsab_init(void)
if (!sunsab_ports)
return -ENOMEM;
- sunsab_reg.minor = sunserial_current_minor;
- sunsab_reg.nr = num_channels;
sunsab_reg.cons = SUNSAB_CONSOLE();
-
- err = uart_register_driver(&sunsab_reg);
+ err = sunserial_register_minors(&sunsab_reg, num_channels);
if (err) {
kfree(sunsab_ports);
sunsab_ports = NULL;
return err;
}
-
- sunsab_reg.tty_driver->name_base = sunsab_reg.minor - 64;
- sunserial_current_minor += num_channels;
}
return of_register_driver(&sab_driver, &of_bus_type);
@@ -1139,9 +1132,8 @@ static int __init sunsab_init(void)
static void __exit sunsab_exit(void)
{
of_unregister_driver(&sab_driver);
- if (num_channels) {
- sunserial_current_minor -= num_channels;
- uart_unregister_driver(&sunsab_reg);
+ if (sunsab_reg.nr) {
+ sunserial_unregister_minors(&sunsab_reg, sunsab_reg.nr);
}
kfree(sunsab_ports);