| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <1365015729-9192-1-git-send-email-linus.walleij@stericsson.com>
Date: Wed, 3 Apr 2013 21:02:09 +0200
From: Linus Walleij <linus.walleij@...ricsson.com>
To: <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Cc: Stephen Warren <swarren@...dia.com>,
Anmar Oueja <anmar.oueja@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
Laurent Meunier <laurent.meunier@...com>
Subject: [PATCH] pinctrl/pinconf: partial revert of pin config debugfs
From: Linus Walleij <linus.walleij@...aro.org>
I accidentally left this patch:
commit 6f9e41f4e673bf9ae6a5c0831b1524a91ea1c440
"pinctrl/pinconfig: add debug interface"
in the tree though the patch was not yet finished.
Revert it partially (we need the infrastructural changes).
Cc: Laurent Meunier <laurent.meunier@...com>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
drivers/pinctrl/pinconf.c | 207 ----------------------------------------------
1 file changed, 207 deletions(-)
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index 8aefd28..baee2cc 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -574,207 +574,6 @@ static const struct file_operations pinconf_groups_ops = {
.release = single_release,
};
-/* 32bit read/write ressources */
-#define MAX_NAME_LEN 16
-char dbg_pinname[MAX_NAME_LEN]; /* shared: name of the state of the pin*/
-char dbg_state_name[MAX_NAME_LEN]; /* shared: state of the pin*/
-static u32 dbg_config; /* shared: config to be read/set for the pin & state*/
-
-static int pinconf_dbg_pinname_print(struct seq_file *s, void *d)
-{
- if (strlen(dbg_pinname))
- seq_printf(s, "%s\n", dbg_pinname);
- else
- seq_printf(s, "No pin name set\n");
- return 0;
-}
-
-static int pinconf_dbg_pinname_open(struct inode *inode, struct file *file)
-{
- return single_open(file, pinconf_dbg_pinname_print, inode->i_private);
-}
-
-static int pinconf_dbg_pinname_write(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- int err;
-
- if (count > MAX_NAME_LEN)
- return -EINVAL;
-
- err = sscanf(user_buf, "%15s", dbg_pinname);
-
- if (err != 1)
- return -EINVAL;
-
- return count;
-}
-
-static const struct file_operations pinconf_dbg_pinname_fops = {
- .open = pinconf_dbg_pinname_open,
- .write = pinconf_dbg_pinname_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static int pinconf_dbg_state_print(struct seq_file *s, void *d)
-{
- if (strlen(dbg_state_name))
- seq_printf(s, "%s\n", dbg_pinname);
- else
- seq_printf(s, "No pin state set\n");
- return 0;
-}
-
-static int pinconf_dbg_state_open(struct inode *inode, struct file *file)
-{
- return single_open(file, pinconf_dbg_state_print, inode->i_private);
-}
-
-static int pinconf_dbg_state_write(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- int err;
-
- if (count > MAX_NAME_LEN)
- return -EINVAL;
-
- err = sscanf(user_buf, "%15s", dbg_state_name);
-
- if (err != 1)
- return -EINVAL;
-
- return count;
-}
-
-static const struct file_operations pinconf_dbg_pinstate_fops = {
- .open = pinconf_dbg_state_open,
- .write = pinconf_dbg_state_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-/**
- * pinconf_dbg_config_print() - display the pinctrl config from the pinctrl
- * map, of a pin/state pair based on pinname and state that have been
- * selected with the debugfs entries pinconf-name and pinconf-state
- * @s: contains the 32bits config to be written
- * @d: not used
- */
-static int pinconf_dbg_config_print(struct seq_file *s, void *d)
-{
- struct pinctrl_maps *maps_node;
- struct pinctrl_map const *map;
- struct pinctrl_dev *pctldev = NULL;
- const struct pinconf_ops *confops = NULL;
- int i, j;
- bool found = false;
-
- mutex_lock(&pinctrl_mutex);
-
- /* Parse the pinctrl map and look for the elected pin/state */
- for_each_maps(maps_node, i, map) {
- if (map->type != PIN_MAP_TYPE_CONFIGS_PIN)
- continue;
-
- if (strncmp(map->name, dbg_state_name, MAX_NAME_LEN) > 0)
- continue;
-
- for (j = 0; j < map->data.configs.num_configs; j++) {
- if (0 == strncmp(map->data.configs.group_or_pin,
- dbg_pinname, MAX_NAME_LEN)) {
- /* We found the right pin / state, read the
- * config and store the pctldev */
- dbg_config = map->data.configs.configs[j];
- pctldev = get_pinctrl_dev_from_devname
- (map->ctrl_dev_name);
- found = true;
- break;
- }
- }
- }
-
- mutex_unlock(&pinctrl_mutex);
-
- if (found) {
- seq_printf(s, "Config of %s in state %s: 0x%08X\n", dbg_pinname,
- dbg_state_name, dbg_config);
-
- if (pctldev)
- confops = pctldev->desc->confops;
-
- if (confops && confops->pin_config_config_dbg_show)
- confops->pin_config_config_dbg_show(pctldev,
- s, dbg_config);
- } else {
- seq_printf(s, "No pin found for defined name/state\n");
- }
-
- return 0;
-}
-
-static int pinconf_dbg_config_open(struct inode *inode, struct file *file)
-{
- return single_open(file, pinconf_dbg_config_print, inode->i_private);
-}
-
-/**
- * pinconf_dbg_config_write() - overwrite the pinctrl config in thepinctrl
- * map, of a pin/state pair based on pinname and state that have been
- * selected with the debugfs entries pinconf-name and pinconf-state
- */
-static int pinconf_dbg_config_write(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- int err;
- unsigned long config;
- struct pinctrl_maps *maps_node;
- struct pinctrl_map const *map;
- int i, j;
-
- err = kstrtoul_from_user(user_buf, count, 0, &config);
-
- if (err)
- return err;
-
- dbg_config = config;
-
- mutex_lock(&pinctrl_mutex);
-
- /* Parse the pinctrl map and look for the selected pin/state */
- for_each_maps(maps_node, i, map) {
- if (map->type != PIN_MAP_TYPE_CONFIGS_PIN)
- continue;
-
- if (strncmp(map->name, dbg_state_name, MAX_NAME_LEN) > 0)
- continue;
-
- /* we found the right pin / state, so overwrite config */
- for (j = 0; j < map->data.configs.num_configs; j++) {
- if (strncmp(map->data.configs.group_or_pin, dbg_pinname,
- MAX_NAME_LEN) == 0)
- map->data.configs.configs[j] = dbg_config;
- }
- }
-
- mutex_unlock(&pinctrl_mutex);
-
- return count;
-}
-
-static const struct file_operations pinconf_dbg_pinconfig_fops = {
- .open = pinconf_dbg_config_open,
- .write = pinconf_dbg_config_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
void pinconf_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev)
{
@@ -782,12 +581,6 @@ void pinconf_init_device_debugfs(struct dentry *devroot,
devroot, pctldev, &pinconf_pins_ops);
debugfs_create_file("pinconf-groups", S_IFREG | S_IRUGO,
devroot, pctldev, &pinconf_groups_ops);
- debugfs_create_file("pinconf-name", (S_IRUGO | S_IWUSR | S_IWGRP),
- devroot, pctldev, &pinconf_dbg_pinname_fops);
- debugfs_create_file("pinconf-state", (S_IRUGO | S_IWUSR | S_IWGRP),
- devroot, pctldev, &pinconf_dbg_pinstate_fops);
- debugfs_create_file("pinconf-config", (S_IRUGO | S_IWUSR | S_IWGRP),
- devroot, pctldev, &pinconf_dbg_pinconfig_fops);
}
#endif
--
1.7.11.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists