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Message-ID: <4B4A1FA9.7030505@imap.cc>
Date: Sun, 10 Jan 2010 19:42:49 +0100
From: Tilman Schmidt <tilman@...p.cc>
To: Alexey Dobriyan <adobriyan@...il.com>
CC: akpm@...ux-foundation.org, isdn@...ux-pingi.de,
netdev@...r.kernel.org
Subject: Re: [patch 1/2] proc_fops: convert drivers/isdn/ to seq_file
Am 05.01.2010 22:19 schrieb Alexey Dobriyan:
> Here is hopefully last version and sorry for delay.
Looks good. Thanks.
> [PATCH] proc_fops: convert drivers/isdn/ to seq_file
>
> Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
Acked-by: Tilman Schmidt <tilman@...p.cc>
for the Documentation and drivers/isdn/gigaset parts.
> ---
>
> Documentation/isdn/INTERFACE.CAPI | 9 -
> drivers/isdn/capi/capi.c | 99 +++++-----------
> drivers/isdn/capi/capidrv.c | 55 ++------
> drivers/isdn/capi/kcapi.c | 8 -
> drivers/isdn/gigaset/capi.c | 75 +++++-------
> drivers/isdn/hardware/avm/avmcard.h | 6
> drivers/isdn/hardware/avm/b1.c | 54 +++++---
> drivers/isdn/hardware/avm/b1dma.c | 71 +++++------
> drivers/isdn/hardware/avm/b1isa.c | 2
> drivers/isdn/hardware/avm/b1pci.c | 4
> drivers/isdn/hardware/avm/b1pcmcia.c | 2
> drivers/isdn/hardware/avm/c4.c | 53 +++++---
> drivers/isdn/hardware/avm/t1isa.c | 2
> drivers/isdn/hardware/avm/t1pci.c | 2
> drivers/isdn/hardware/eicon/capimain.c | 40 +++---
> drivers/isdn/hardware/eicon/diva_didd.c | 45 +++----
> drivers/isdn/hardware/eicon/divasi.c | 48 ++++---
> drivers/isdn/hardware/eicon/divasproc.c | 198 ++++++++++++++------------------
> drivers/isdn/hysdn/hycapi.c | 56 ++++-----
> include/linux/isdn/capilli.h | 3
> net/bluetooth/cmtp/capi.c | 37 +++--
> 21 files changed, 411 insertions(+), 458 deletions(-)
>
> --- a/Documentation/isdn/INTERFACE.CAPI
> +++ b/Documentation/isdn/INTERFACE.CAPI
> @@ -149,10 +149,11 @@ char *(*procinfo)(struct capi_ctr *ctrlr)
> pointer to a callback function returning the entry for the device in
> the CAPI controller info table, /proc/capi/controller
>
> -read_proc_t *ctr_read_proc
> - pointer to the read_proc callback function for the device's proc file
> - system entry, /proc/capi/controllers/<n>; will be called with a
> - pointer to the device's capi_ctr structure as the last (data) argument
> +const struct file_operations *proc_fops
> + pointers to callback functions for the device's proc file
> + system entry, /proc/capi/controllers/<n>; pointer to the device's
> + capi_ctr structure is available from struct proc_dir_entry::data
> + which is available from struct inode.
>
> Note: Callback functions except send_message() are never called in interrupt
> context.
[...]
> --- a/drivers/isdn/gigaset/capi.c
> +++ b/drivers/isdn/gigaset/capi.c
> @@ -13,6 +13,8 @@
>
> #include "gigaset.h"
> #include <linux/ctype.h>
> +#include <linux/proc_fs.h>
> +#include <linux/seq_file.h>
> #include <linux/isdn/capilli.h>
> #include <linux/isdn/capicmd.h>
> #include <linux/isdn/capiutil.h>
> @@ -2106,35 +2108,22 @@ static char *gigaset_procinfo(struct capi_ctr *ctr)
> return ctr->name; /* ToDo: more? */
> }
>
> -/**
> - * gigaset_ctr_read_proc() - build controller proc file entry
> - * @page: buffer of PAGE_SIZE bytes for receiving the entry.
> - * @start: unused.
> - * @off: unused.
> - * @count: unused.
> - * @eof: unused.
> - * @ctr: controller descriptor structure.
> - *
> - * Return value: length of generated entry
> - */
> -static int gigaset_ctr_read_proc(char *page, char **start, off_t off,
> - int count, int *eof, struct capi_ctr *ctr)
> +static int gigaset_proc_show(struct seq_file *m, void *v)
> {
> + struct capi_ctr *ctr = m->private;
> struct cardstate *cs = ctr->driverdata;
> char *s;
> int i;
> - int len = 0;
> - len += sprintf(page+len, "%-16s %s\n", "name", ctr->name);
> - len += sprintf(page+len, "%-16s %s %s\n", "dev",
> +
> + seq_printf(m, "%-16s %s\n", "name", ctr->name);
> + seq_printf(m, "%-16s %s %s\n", "dev",
> dev_driver_string(cs->dev), dev_name(cs->dev));
> - len += sprintf(page+len, "%-16s %d\n", "id", cs->myid);
> + seq_printf(m, "%-16s %d\n", "id", cs->myid);
> if (cs->gotfwver)
> - len += sprintf(page+len, "%-16s %d.%d.%d.%d\n", "firmware",
> + seq_printf(m, "%-16s %d.%d.%d.%d\n", "firmware",
> cs->fwver[0], cs->fwver[1], cs->fwver[2], cs->fwver[3]);
> - len += sprintf(page+len, "%-16s %d\n", "channels",
> - cs->channels);
> - len += sprintf(page+len, "%-16s %s\n", "onechannel",
> - cs->onechannel ? "yes" : "no");
> + seq_printf(m, "%-16s %d\n", "channels", cs->channels);
> + seq_printf(m, "%-16s %s\n", "onechannel", cs->onechannel ? "yes" : "no");
>
> switch (cs->mode) {
> case M_UNKNOWN:
> @@ -2152,7 +2141,7 @@ static int gigaset_ctr_read_proc(char *page, char **start, off_t off,
> default:
> s = "??";
> }
> - len += sprintf(page+len, "%-16s %s\n", "mode", s);
> + seq_printf(m, "%-16s %s\n", "mode", s);
>
> switch (cs->mstate) {
> case MS_UNINITIALIZED:
> @@ -2176,25 +2165,21 @@ static int gigaset_ctr_read_proc(char *page, char **start, off_t off,
> default:
> s = "??";
> }
> - len += sprintf(page+len, "%-16s %s\n", "mstate", s);
> + seq_printf(m, "%-16s %s\n", "mstate", s);
>
> - len += sprintf(page+len, "%-16s %s\n", "running",
> - cs->running ? "yes" : "no");
> - len += sprintf(page+len, "%-16s %s\n", "connected",
> - cs->connected ? "yes" : "no");
> - len += sprintf(page+len, "%-16s %s\n", "isdn_up",
> - cs->isdn_up ? "yes" : "no");
> - len += sprintf(page+len, "%-16s %s\n", "cidmode",
> - cs->cidmode ? "yes" : "no");
> + seq_printf(m, "%-16s %s\n", "running", cs->running ? "yes" : "no");
> + seq_printf(m, "%-16s %s\n", "connected", cs->connected ? "yes" : "no");
> + seq_printf(m, "%-16s %s\n", "isdn_up", cs->isdn_up ? "yes" : "no");
> + seq_printf(m, "%-16s %s\n", "cidmode", cs->cidmode ? "yes" : "no");
>
> for (i = 0; i < cs->channels; i++) {
> - len += sprintf(page+len, "[%d]%-13s %d\n", i, "corrupted",
> + seq_printf(m, "[%d]%-13s %d\n", i, "corrupted",
> cs->bcs[i].corrupted);
> - len += sprintf(page+len, "[%d]%-13s %d\n", i, "trans_down",
> + seq_printf(m, "[%d]%-13s %d\n", i, "trans_down",
> cs->bcs[i].trans_down);
> - len += sprintf(page+len, "[%d]%-13s %d\n", i, "trans_up",
> + seq_printf(m, "[%d]%-13s %d\n", i, "trans_up",
> cs->bcs[i].trans_up);
> - len += sprintf(page+len, "[%d]%-13s %d\n", i, "chstate",
> + seq_printf(m, "[%d]%-13s %d\n", i, "chstate",
> cs->bcs[i].chstate);
> switch (cs->bcs[i].proto2) {
> case L2_BITSYNC:
> @@ -2209,11 +2194,23 @@ static int gigaset_ctr_read_proc(char *page, char **start, off_t off,
> default:
> s = "??";
> }
> - len += sprintf(page+len, "[%d]%-13s %s\n", i, "proto2", s);
> + seq_printf(m, "[%d]%-13s %s\n", i, "proto2", s);
> }
> - return len;
> + return 0;
> }
>
> +static int gigaset_proc_open(struct inode *inode, struct file *file)
> +{
> + return single_open(file, gigaset_proc_show, PDE(inode)->data);
> +}
> +
> +static const struct file_operations gigaset_proc_fops = {
> + .owner = THIS_MODULE,
> + .open = gigaset_proc_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
>
> static struct capi_driver capi_driver_gigaset = {
> .name = "gigaset",
> @@ -2256,7 +2253,7 @@ int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
> iif->ctr.release_appl = gigaset_release_appl;
> iif->ctr.send_message = gigaset_send_message;
> iif->ctr.procinfo = gigaset_procinfo;
> - iif->ctr.ctr_read_proc = gigaset_ctr_read_proc;
> + iif->ctr.proc_fops = &gigaset_proc_fops;
> INIT_LIST_HEAD(&iif->appls);
> skb_queue_head_init(&iif->sendqueue);
> atomic_set(&iif->sendqlen, 0);
--
Tilman Schmidt E-Mail: tilman@...p.cc
Bonn, Germany
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