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Message-ID: <20241009181339.a97e7557a81f.I45657e6a8415d796ec95c95becc9efb377ee3be6@changeid>
Date: Wed, 9 Oct 2024 18:13:40 +0200
From: Johannes Berg <johannes@...solutions.net>
To: linux-wireless@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Alexander Viro <viro@...iv.linux.org.uk>,
Johannes Berg <johannes.berg@...el.com>
Subject: [RFC PATCH 2/2] wifi: mac80211: convert debugfs files to short fops
From: Johannes Berg <johannes.berg@...el.com>
Given the large size of the regular struct file_operations, save
a lot of space with the newly added short fops for debugfs.
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
net/mac80211/debugfs.c | 27 +++++++++------------------
net/mac80211/debugfs_key.c | 9 +++------
net/mac80211/debugfs_netdev.c | 3 +--
net/mac80211/debugfs_sta.c | 9 +++------
net/mac80211/rate.c | 3 +--
net/mac80211/rate.h | 2 +-
6 files changed, 18 insertions(+), 35 deletions(-)
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 02b5476a4376..c52e85829e71 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -42,9 +42,8 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \
}
#define DEBUGFS_READONLY_FILE_OPS(name) \
-static const struct file_operations name## _ops = { \
+static const struct debugfs_short_fops name## _ops = { \
.read = name## _read, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
};
@@ -142,10 +141,9 @@ static ssize_t aqm_write(struct file *file,
return -EINVAL;
}
-static const struct file_operations aqm_ops = {
+static const struct debugfs_short_fops aqm_ops = {
.write = aqm_write,
.read = aqm_read,
- .open = simple_open,
.llseek = default_llseek,
};
@@ -194,10 +192,9 @@ static ssize_t airtime_flags_write(struct file *file,
return count;
}
-static const struct file_operations airtime_flags_ops = {
+static const struct debugfs_short_fops airtime_flags_ops = {
.write = airtime_flags_write,
.read = airtime_flags_read,
- .open = simple_open,
.llseek = default_llseek,
};
@@ -225,9 +222,8 @@ static ssize_t aql_pending_read(struct file *file,
buf, len);
}
-static const struct file_operations aql_pending_ops = {
+static const struct debugfs_short_fops aql_pending_ops = {
.read = aql_pending_read,
- .open = simple_open,
.llseek = default_llseek,
};
@@ -305,10 +301,9 @@ static ssize_t aql_txq_limit_write(struct file *file,
return count;
}
-static const struct file_operations aql_txq_limit_ops = {
+static const struct debugfs_short_fops aql_txq_limit_ops = {
.write = aql_txq_limit_write,
.read = aql_txq_limit_read,
- .open = simple_open,
.llseek = default_llseek,
};
@@ -355,10 +350,9 @@ static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
return count;
}
-static const struct file_operations aql_enable_ops = {
+static const struct debugfs_short_fops aql_enable_ops = {
.write = aql_enable_write,
.read = aql_enable_read,
- .open = simple_open,
.llseek = default_llseek,
};
@@ -406,10 +400,9 @@ static ssize_t force_tx_status_write(struct file *file,
return count;
}
-static const struct file_operations force_tx_status_ops = {
+static const struct debugfs_short_fops force_tx_status_ops = {
.write = force_tx_status_write,
.read = force_tx_status_read,
- .open = simple_open,
.llseek = default_llseek,
};
@@ -434,9 +427,8 @@ static ssize_t reset_write(struct file *file, const char __user *user_buf,
return count;
}
-static const struct file_operations reset_ops = {
+static const struct debugfs_short_fops reset_ops = {
.write = reset_write,
- .open = simple_open,
.llseek = noop_llseek,
};
#endif
@@ -623,9 +615,8 @@ static ssize_t stats_ ##name## _read(struct file *file, \
print_devstats_##name); \
} \
\
-static const struct file_operations stats_ ##name## _ops = { \
+static const struct debugfs_short_fops stats_ ##name## _ops = { \
.read = stats_ ##name## _read, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
};
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 7e54da508765..b3a64edea0f2 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -26,17 +26,15 @@ static ssize_t key_##name##_read(struct file *file, \
#define KEY_READ_X(name) KEY_READ(name, name, "0x%x\n")
#define KEY_OPS(name) \
-static const struct file_operations key_ ##name## _ops = { \
+static const struct debugfs_short_fops key_ ##name## _ops = { \
.read = key_##name##_read, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
}
#define KEY_OPS_W(name) \
-static const struct file_operations key_ ##name## _ops = { \
+static const struct debugfs_short_fops key_ ##name## _ops = { \
.read = key_##name##_read, \
.write = key_##name##_write, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
}
@@ -49,9 +47,8 @@ static const struct file_operations key_ ##name## _ops = { \
#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, "%d\n")
#define KEY_CONF_OPS(name) \
-static const struct file_operations key_ ##name## _ops = { \
+static const struct debugfs_short_fops key_ ##name## _ops = { \
.read = key_conf_##name##_read, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
}
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 68596ef78b15..a9bc2fd59f55 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -221,10 +221,9 @@ static ssize_t ieee80211_if_fmt_##name( \
}
#define _IEEE80211_IF_FILE_OPS(name, _read, _write) \
-static const struct file_operations name##_ops = { \
+static const struct debugfs_short_fops name##_ops = { \
.read = (_read), \
.write = (_write), \
- .open = simple_open, \
.llseek = generic_file_llseek, \
}
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 1e9389c49a57..a67a9d316008 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -30,17 +30,15 @@ static ssize_t sta_ ##name## _read(struct file *file, \
#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
#define STA_OPS(name) \
-static const struct file_operations sta_ ##name## _ops = { \
+static const struct debugfs_short_fops sta_ ##name## _ops = { \
.read = sta_##name##_read, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
}
#define STA_OPS_RW(name) \
-static const struct file_operations sta_ ##name## _ops = { \
+static const struct debugfs_short_fops sta_ ##name## _ops = { \
.read = sta_##name##_read, \
.write = sta_##name##_write, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
}
@@ -450,9 +448,8 @@ STA_OPS_RW(agg_status);
/* link sta attributes */
#define LINK_STA_OPS(name) \
-static const struct file_operations link_sta_ ##name## _ops = { \
+static const struct debugfs_short_fops link_sta_ ##name## _ops = { \
.read = link_sta_##name##_read, \
- .open = simple_open, \
.llseek = generic_file_llseek, \
}
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 3dc9752188d5..d1577c88b932 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -229,9 +229,8 @@ static ssize_t rcname_read(struct file *file, char __user *userbuf,
ref->ops->name, len);
}
-const struct file_operations rcname_ops = {
+const struct debugfs_short_fops rcname_ops = {
.read = rcname_read,
- .open = simple_open,
.llseek = default_llseek,
};
#endif
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index d6190f10fe7c..d3f46e26453c 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -62,7 +62,7 @@ static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
#endif
}
-extern const struct file_operations rcname_ops;
+extern const struct debugfs_short_fops rcname_ops;
static inline void rate_control_add_debugfs(struct ieee80211_local *local)
{
--
2.46.2
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