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Date: Thu, 6 Jan 2022 09:23:45 +0100
From: Dominik Brodowski <linux@...inikbrodowski.net>
To: linux-kernel@...r.kernel.org
Subject: [PATCH] pcmcia: use sysfs_emit{,_at} for sysfs output
Convert the PCMCIA core and yenta_socket.c to use sysfs_emit or
sysfs_emit_at when providing output in sysfs.
Signed-off-by: Dominik Brodowski <linux@...inikbrodowski.net>
---
drivers/pcmcia/ds.c | 20 +++++++++-----------
drivers/pcmcia/rsrc_nonstatic.c | 6 +++---
drivers/pcmcia/socket_sysfs.c | 18 +++++++++---------
drivers/pcmcia/yenta_socket.c | 14 +++++++-------
4 files changed, 28 insertions(+), 30 deletions(-)
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 5bd1b80424e7..ace133b9f7d4 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -998,7 +998,7 @@ static int runtime_resume(struct device *dev)
static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
- return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \
+ return p_dev->test ? sysfs_emit(buf, format, p_dev->field) : -ENODEV; \
} \
static DEVICE_ATTR_RO(field);
@@ -1006,7 +1006,7 @@ static DEVICE_ATTR_RO(field);
static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
- return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \
+ return p_dev->field ? sysfs_emit(buf, "%s\n", p_dev->field) : -ENODEV; \
} \
static DEVICE_ATTR_RO(name);
@@ -1022,7 +1022,7 @@ static ssize_t function_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- return p_dev->socket ? sprintf(buf, "0x%02x\n", p_dev->func) : -ENODEV;
+ return p_dev->socket ? sysfs_emit(buf, "0x%02x\n", p_dev->func) : -ENODEV;
}
static DEVICE_ATTR_RO(function);
@@ -1030,13 +1030,12 @@ static ssize_t resources_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- char *str = buf;
- int i;
+ int i, at = 0;
for (i = 0; i < PCMCIA_NUM_RESOURCES; i++)
- str += sprintf(str, "%pr\n", p_dev->resource[i]);
+ at += sysfs_emit_at(buf, at, "%pr\n", p_dev->resource[i]);
- return str - buf;
+ return at;
}
static DEVICE_ATTR_RO(resources);
@@ -1045,9 +1044,9 @@ static ssize_t pm_state_show(struct device *dev, struct device_attribute *attr,
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (p_dev->suspended)
- return sprintf(buf, "off\n");
+ return sysfs_emit(buf, "off\n");
else
- return sprintf(buf, "on\n");
+ return sysfs_emit(buf, "on\n");
}
static ssize_t pm_state_store(struct device *dev, struct device_attribute *attr,
@@ -1081,8 +1080,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
hash[i] = crc32(0, p_dev->prod_id[i],
strlen(p_dev->prod_id[i]));
}
- return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
- "pa%08Xpb%08Xpc%08Xpd%08X\n",
+ return sysfs_emit(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02Xpa%08Xpb%08Xpc%08Xpd%08X\n",
p_dev->has_manf_id ? p_dev->manf_id : 0,
p_dev->has_card_id ? p_dev->card_id : 0,
p_dev->has_func_id ? p_dev->func_id : 0,
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 1cac52870711..6b6c578b5f92 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -1082,7 +1082,7 @@ static ssize_t show_io_db(struct device *dev,
for (p = data->io_db.next; p != &data->io_db; p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
- ret += scnprintf(&buf[ret], (PAGE_SIZE - ret - 1),
+ ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
@@ -1139,7 +1139,7 @@ static ssize_t show_mem_db(struct device *dev,
p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
- ret += scnprintf(&buf[ret], (PAGE_SIZE - ret - 1),
+ ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
@@ -1148,7 +1148,7 @@ static ssize_t show_mem_db(struct device *dev,
for (p = data->mem_db.next; p != &data->mem_db; p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
- ret += scnprintf(&buf[ret], (PAGE_SIZE - ret - 1),
+ ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c
index d1b220a1e1ab..c7a906664c36 100644
--- a/drivers/pcmcia/socket_sysfs.c
+++ b/drivers/pcmcia/socket_sysfs.c
@@ -38,8 +38,8 @@ static ssize_t pccard_show_type(struct device *dev, struct device_attribute *att
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (s->state & SOCKET_CARDBUS)
- return sprintf(buf, "32-bit\n");
- return sprintf(buf, "16-bit\n");
+ return sysfs_emit(buf, "32-bit\n");
+ return sysfs_emit(buf, "16-bit\n");
}
static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
@@ -51,9 +51,9 @@ static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (s->socket.Vcc)
- return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
+ return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10,
s->socket.Vcc % 10);
- return sprintf(buf, "X.XV\n");
+ return sysfs_emit(buf, "X.XV\n");
}
static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
@@ -63,7 +63,7 @@ static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr
struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
- return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
+ return sysfs_emit(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
}
static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
@@ -73,7 +73,7 @@ static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr
struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
- return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
+ return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
}
static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
@@ -98,7 +98,7 @@ static ssize_t pccard_show_card_pm_state(struct device *dev,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
- return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
+ return sysfs_emit(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
}
static ssize_t pccard_store_card_pm_state(struct device *dev,
@@ -145,7 +145,7 @@ static ssize_t pccard_show_irq_mask(struct device *dev,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
- return sprintf(buf, "0x%04x\n", s->irq_mask);
+ return sysfs_emit(buf, "0x%04x\n", s->irq_mask);
}
static ssize_t pccard_store_irq_mask(struct device *dev,
@@ -177,7 +177,7 @@ static ssize_t pccard_show_resource(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
- return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
+ return sysfs_emit(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
}
static ssize_t pccard_store_resource(struct device *dev,
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index e7ec3ea23db9..837877daed62 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -178,16 +178,16 @@ static ssize_t show_yenta_registers(struct device *yentadev, struct device_attri
struct yenta_socket *socket = dev_get_drvdata(yentadev);
int offset = 0, i;
- offset = snprintf(buf, PAGE_SIZE, "CB registers:");
+ offset = sysfs_emit(buf, "CB registers:");
for (i = 0; i < 0x24; i += 4) {
unsigned val;
if (!(i & 15))
- offset += scnprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
+ offset += sysfs_emit_at(buf, offset, "\n%02x:", i);
val = cb_readl(socket, i);
- offset += scnprintf(buf + offset, PAGE_SIZE - offset, " %08x", val);
+ offset += sysfs_emit_at(buf, offset, " %08x", val);
}
- offset += scnprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:");
+ offset += sysfs_emit_at(buf, offset, "\n\nExCA registers:");
for (i = 0; i < 0x45; i++) {
unsigned char val;
if (!(i & 7)) {
@@ -195,12 +195,12 @@ static ssize_t show_yenta_registers(struct device *yentadev, struct device_attri
memcpy(buf + offset, " -", 2);
offset += 2;
} else
- offset += scnprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
+ offset += sysfs_emit_at(buf, offset, "\n%02x:", i);
}
val = exca_readb(socket, i);
- offset += scnprintf(buf + offset, PAGE_SIZE - offset, " %02x", val);
+ offset += sysfs_emit_at(buf, offset, " %02x", val);
}
- buf[offset++] = '\n';
+ sysfs_emit_at(buf, offset, "\n");
return offset;
}
--
2.34.1
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