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Subject[PATCH] Char: mxser, remove predefined isa support
Date
Remove a support of ISA addresses predefined on the compile time.
It is unused (filled by zeroes) and prolongs the code.
Don't initialize global array and add `ioaddr' module param
description.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
---
drivers/char/mxser.c | 67 ++++++++++++++++++++-----------------------------
1 files changed, 27 insertions(+), 40 deletions(-)
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 800b609..8f7afdc 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -173,14 +173,15 @@ static struct pci_device_id mxser_pcibrds[] = {
};
MODULE_DEVICE_TABLE(pci, mxser_pcibrds);

-static int ioaddr[MXSER_BOARDS] = { 0, 0, 0, 0 };
+static unsigned long ioaddr[MXSER_BOARDS];
static int ttymajor = MXSERMAJOR;

/* Variables for insmod */

MODULE_AUTHOR("Casper Yang");
MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver");
-module_param_array(ioaddr, int, NULL, 0);
+module_param_array(ioaddr, ulong, NULL, 0);
+MODULE_PARM_DESC(ioaddr, "ISA io addresses to look for a moxa board");
module_param(ttymajor, int, 0);
MODULE_LICENSE("GPL");

@@ -289,11 +290,6 @@ struct mxser_mstatus {
int dcd;
};

-static int mxserBoardCAP[MXSER_BOARDS] = {
- 0, 0, 0, 0
- /* 0x180, 0x280, 0x200, 0x320 */
-};
-
static struct mxser_board mxser_boards[MXSER_BOARDS];
static struct tty_driver *mxvar_sdriver;
static struct mxser_log mxvar_log;
@@ -2772,9 +2768,8 @@ static struct pci_driver mxser_driver = {
static int __init mxser_module_init(void)
{
struct mxser_board *brd;
- unsigned long cap;
- unsigned int i, m, isaloop;
- int retval, b;
+ unsigned int b, i, m;
+ int retval;

pr_debug("Loading module mxser ...\n");

@@ -2806,41 +2801,33 @@ static int __init mxser_module_init(void)
goto err_put;
}

- m = 0;
/* Start finding ISA boards here */
- for (isaloop = 0; isaloop < 2; isaloop++)
- for (b = 0; b < MXSER_BOARDS && m < MXSER_BOARDS; b++) {
- if (!isaloop)
- cap = mxserBoardCAP[b]; /* predefined */
- else
- cap = ioaddr[b]; /* module param */
-
- if (!cap)
- continue;
-
- brd = &mxser_boards[m];
- retval = mxser_get_ISA_conf(cap, brd);
- if (retval <= 0) {
- brd->info = NULL;
- continue;
- }
+ for (m = 0, b = 0; b < MXSER_BOARDS; b++) {
+ if (!ioaddr[b])
+ continue;
+
+ brd = &mxser_boards[m];
+ retval = mxser_get_ISA_conf(!ioaddr[b], brd);
+ if (retval <= 0) {
+ brd->info = NULL;
+ continue;
+ }

- printk(KERN_INFO "mxser: found MOXA %s board "
- "(CAP=0x%x)\n", brd->info->name, ioaddr[b]);
+ printk(KERN_INFO "mxser: found MOXA %s board (CAP=0x%lx)\n",
+ brd->info->name, ioaddr[b]);

- /* mxser_initbrd will hook ISR. */
- if (mxser_initbrd(brd, NULL) < 0) {
- brd->info = NULL;
- continue;
- }
+ /* mxser_initbrd will hook ISR. */
+ if (mxser_initbrd(brd, NULL) < 0) {
+ brd->info = NULL;
+ continue;
+ }

- brd->idx = m * MXSER_PORTS_PER_BOARD;
- for (i = 0; i < brd->info->nports; i++)
- tty_register_device(mxvar_sdriver, brd->idx + i,
- NULL);
+ brd->idx = m * MXSER_PORTS_PER_BOARD;
+ for (i = 0; i < brd->info->nports; i++)
+ tty_register_device(mxvar_sdriver, brd->idx + i, NULL);

- m++;
- }
+ m++;
+ }

retval = pci_register_driver(&mxser_driver);
if (retval) {
--
1.5.4.5


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