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s390/qeth: Convert sysfs sprintf to sysfs_emit 

Following the advice of the Documentation/filesystems/sysfs.rst.
All sysfs related show()-functions should only use sysfs_emit() or
sysfs_emit_at() when formatting the value to be returned to user space.

Reported-by: Jules Irenge <jbi.octave@gmail.com>
Reported-by: Joe Perches <joe@perches.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Thorsten Winkler <twinkler@linux.ibm.com>
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Thorsten Winkler 2023-02-09 12:04:23 +01:00 committed by Jakub Kicinski
parent 180f513174
commit dde8769b12
3 changed files with 73 additions and 98 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/s390/net/qeth_core_sys.c
View File

@ -23,15 +23,15 @@ static ssize_t qeth_dev_state_show(struct device *dev,
switch (card->state) {
case CARD_STATE_DOWN:
return sprintf(buf, "DOWN\n");
return sysfs_emit(buf, "DOWN\n");
case CARD_STATE_SOFTSETUP:
if (card->dev->flags & IFF_UP)
return sprintf(buf, "UP (LAN %s)\n",
netif_carrier_ok(card->dev) ? "ONLINE" :
"OFFLINE");
return sprintf(buf, "SOFTSETUP\n");
return sysfs_emit(buf, "UP (LAN %s)\n",
netif_carrier_ok(card->dev) ?
"ONLINE" : "OFFLINE");
return sysfs_emit(buf, "SOFTSETUP\n");
default:
return sprintf(buf, "UNKNOWN\n");
return sysfs_emit(buf, "UNKNOWN\n");
}
}
@ -42,7 +42,7 @@ static ssize_t qeth_dev_chpid_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%02X\n", card->info.chpid);
return sysfs_emit(buf, "%02X\n", card->info.chpid);
}
static DEVICE_ATTR(chpid, 0444, qeth_dev_chpid_show, NULL);
@ -52,7 +52,7 @@ static ssize_t qeth_dev_if_name_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", netdev_name(card->dev));
return sysfs_emit(buf, "%s\n", netdev_name(card->dev));
}
static DEVICE_ATTR(if_name, 0444, qeth_dev_if_name_show, NULL);
@ -62,7 +62,7 @@ static ssize_t qeth_dev_card_type_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", qeth_get_cardname_short(card));
return sysfs_emit(buf, "%s\n", qeth_get_cardname_short(card));
}
static DEVICE_ATTR(card_type, 0444, qeth_dev_card_type_show, NULL);
@ -86,7 +86,7 @@ static ssize_t qeth_dev_inbuf_size_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", qeth_get_bufsize_str(card));
return sysfs_emit(buf, "%s\n", qeth_get_bufsize_str(card));
}
static DEVICE_ATTR(inbuf_size, 0444, qeth_dev_inbuf_size_show, NULL);
@ -96,7 +96,7 @@ static ssize_t qeth_dev_portno_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%i\n", card->dev->dev_port);
return sysfs_emit(buf, "%i\n", card->dev->dev_port);
}
static ssize_t qeth_dev_portno_store(struct device *dev,
@ -134,7 +134,7 @@ static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store);
static ssize_t qeth_dev_portname_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "no portname required\n");
return sysfs_emit(buf, "no portname required\n");
}
static ssize_t qeth_dev_portname_store(struct device *dev,
@ -157,18 +157,18 @@ static ssize_t qeth_dev_prioqing_show(struct device *dev,
switch (card->qdio.do_prio_queueing) {
case QETH_PRIO_Q_ING_PREC:
return sprintf(buf, "%s\n", "by precedence");
return sysfs_emit(buf, "%s\n", "by precedence");
case QETH_PRIO_Q_ING_TOS:
return sprintf(buf, "%s\n", "by type of service");
return sysfs_emit(buf, "%s\n", "by type of service");
case QETH_PRIO_Q_ING_SKB:
return sprintf(buf, "%s\n", "by skb-priority");
return sysfs_emit(buf, "%s\n", "by skb-priority");
case QETH_PRIO_Q_ING_VLAN:
return sprintf(buf, "%s\n", "by VLAN headers");
return sysfs_emit(buf, "%s\n", "by VLAN headers");
case QETH_PRIO_Q_ING_FIXED:
return sprintf(buf, "always queue %i\n",
return sysfs_emit(buf, "always queue %i\n",
card->qdio.default_out_queue);
default:
return sprintf(buf, "disabled\n");
return sysfs_emit(buf, "disabled\n");
}
}
@ -242,7 +242,7 @@ static ssize_t qeth_dev_bufcnt_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%i\n", card->qdio.in_buf_pool.buf_count);
return sysfs_emit(buf, "%i\n", card->qdio.in_buf_pool.buf_count);
}
static ssize_t qeth_dev_bufcnt_store(struct device *dev,
@ -298,7 +298,7 @@ static DEVICE_ATTR(recover, 0200, NULL, qeth_dev_recover_store);
static ssize_t qeth_dev_performance_stats_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "1\n");
return sysfs_emit(buf, "1\n");
}
static ssize_t qeth_dev_performance_stats_store(struct device *dev,
@ -335,7 +335,7 @@ static ssize_t qeth_dev_layer2_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%i\n", card->options.layer);
return sysfs_emit(buf, "%i\n", card->options.layer);
}
static ssize_t qeth_dev_layer2_store(struct device *dev,
@ -470,23 +470,25 @@ static ssize_t qeth_dev_switch_attrs_show(struct device *dev,
int rc = 0;
if (!qeth_card_hw_is_reachable(card))
return sprintf(buf, "n/a\n");
return sysfs_emit(buf, "n/a\n");
rc = qeth_query_switch_attributes(card, &sw_info);
if (rc)
return rc;
if (!sw_info.capabilities)
rc = sprintf(buf, "unknown");
rc = sysfs_emit(buf, "unknown");
if (sw_info.capabilities & QETH_SWITCH_FORW_802_1)
rc = sprintf(buf, (sw_info.settings & QETH_SWITCH_FORW_802_1 ?
"[802.1]" : "802.1"));
rc = sysfs_emit(buf,
(sw_info.settings & QETH_SWITCH_FORW_802_1 ?
"[802.1]" : "802.1"));
if (sw_info.capabilities & QETH_SWITCH_FORW_REFL_RELAY)
rc += sprintf(buf + rc,
(sw_info.settings & QETH_SWITCH_FORW_REFL_RELAY ?
" [rr]" : " rr"));
rc += sprintf(buf + rc, "\n");
rc += sysfs_emit_at(buf, rc,
(sw_info.settings &
QETH_SWITCH_FORW_REFL_RELAY ?
" [rr]" : " rr"));
rc += sysfs_emit_at(buf, rc, "\n");
return rc;
}
@ -573,7 +575,7 @@ static ssize_t qeth_dev_blkt_total_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%i\n", card->info.blkt.time_total);
return sysfs_emit(buf, "%i\n", card->info.blkt.time_total);
}
static ssize_t qeth_dev_blkt_total_store(struct device *dev,
@ -593,7 +595,7 @@ static ssize_t qeth_dev_blkt_inter_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%i\n", card->info.blkt.inter_packet);
return sysfs_emit(buf, "%i\n", card->info.blkt.inter_packet);
}
static ssize_t qeth_dev_blkt_inter_store(struct device *dev,
@ -613,7 +615,7 @@ static ssize_t qeth_dev_blkt_inter_jumbo_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%i\n", card->info.blkt.inter_packet_jumbo);
return sysfs_emit(buf, "%i\n", card->info.blkt.inter_packet_jumbo);
}
static ssize_t qeth_dev_blkt_inter_jumbo_store(struct device *dev,

28
drivers/s390/net/qeth_l2_sys.c
View File

@ -19,7 +19,7 @@ static ssize_t qeth_bridge_port_role_state_show(struct device *dev,
char *word;
if (!qeth_bridgeport_allowed(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
return sysfs_emit(buf, "n/a (VNIC characteristics)\n");
mutex_lock(&card->sbp_lock);
if (qeth_card_hw_is_reachable(card) &&
@ -53,7 +53,7 @@ static ssize_t qeth_bridge_port_role_state_show(struct device *dev,
QETH_CARD_TEXT_(card, 2, "SBP%02x:%02x",
card->options.sbp.role, state);
else
rc = sprintf(buf, "%s\n", word);
rc = sysfs_emit(buf, "%s\n", word);
}
mutex_unlock(&card->sbp_lock);
@ -66,7 +66,7 @@ static ssize_t qeth_bridge_port_role_show(struct device *dev,
struct qeth_card *card = dev_get_drvdata(dev);
if (!qeth_bridgeport_allowed(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
return sysfs_emit(buf, "n/a (VNIC characteristics)\n");
return qeth_bridge_port_role_state_show(dev, attr, buf, 0);
}
@ -117,7 +117,7 @@ static ssize_t qeth_bridge_port_state_show(struct device *dev,
struct qeth_card *card = dev_get_drvdata(dev);
if (!qeth_bridgeport_allowed(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
return sysfs_emit(buf, "n/a (VNIC characteristics)\n");
return qeth_bridge_port_role_state_show(dev, attr, buf, 1);
}
@ -132,11 +132,11 @@ static ssize_t qeth_bridgeport_hostnotification_show(struct device *dev,
int enabled;
if (!qeth_bridgeport_allowed(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
return sysfs_emit(buf, "n/a (VNIC characteristics)\n");
enabled = card->options.sbp.hostnotification;
return sprintf(buf, "%d\n", enabled);
return sysfs_emit(buf, "%d\n", enabled);
}
static ssize_t qeth_bridgeport_hostnotification_store(struct device *dev,
@ -180,7 +180,7 @@ static ssize_t qeth_bridgeport_reflect_show(struct device *dev,
char *state;
if (!qeth_bridgeport_allowed(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
return sysfs_emit(buf, "n/a (VNIC characteristics)\n");
if (card->options.sbp.reflect_promisc) {
if (card->options.sbp.reflect_promisc_primary)
@ -190,7 +190,7 @@ static ssize_t qeth_bridgeport_reflect_show(struct device *dev,
} else
state = "none";
return sprintf(buf, "%s\n", state);
return sysfs_emit(buf, "%s\n", state);
}
static ssize_t qeth_bridgeport_reflect_store(struct device *dev,
@ -280,10 +280,10 @@ static ssize_t qeth_vnicc_timeout_show(struct device *dev,
rc = qeth_l2_vnicc_get_timeout(card, &timeout);
if (rc == -EBUSY)
return sprintf(buf, "n/a (BridgePort)\n");
return sysfs_emit(buf, "n/a (BridgePort)\n");
if (rc == -EOPNOTSUPP)
return sprintf(buf, "n/a\n");
return rc ? rc : sprintf(buf, "%d\n", timeout);
return sysfs_emit(buf, "n/a\n");
return rc ? rc : sysfs_emit(buf, "%d\n", timeout);
}
/* change timeout setting */
@ -318,10 +318,10 @@ static ssize_t qeth_vnicc_char_show(struct device *dev,
rc = qeth_l2_vnicc_get_state(card, vnicc, &state);
if (rc == -EBUSY)
return sprintf(buf, "n/a (BridgePort)\n");
return sysfs_emit(buf, "n/a (BridgePort)\n");
if (rc == -EOPNOTSUPP)
return sprintf(buf, "n/a\n");
return rc ? rc : sprintf(buf, "%d\n", state);
return sysfs_emit(buf, "n/a\n");
return rc ? rc : sysfs_emit(buf, "%d\n", state);
}
/* change setting of characteristic */

77
drivers/s390/net/qeth_l3_sys.c
View File

@ -32,26 +32,26 @@ static ssize_t qeth_l3_dev_route_show(struct qeth_card *card,
{
switch (route->type) {
case PRIMARY_ROUTER:
return sprintf(buf, "%s\n", "primary router");
return sysfs_emit(buf, "%s\n", "primary router");
case SECONDARY_ROUTER:
return sprintf(buf, "%s\n", "secondary router");
return sysfs_emit(buf, "%s\n", "secondary router");
case MULTICAST_ROUTER:
if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
return sprintf(buf, "%s\n", "multicast router+");
return sysfs_emit(buf, "%s\n", "multicast router+");
else
return sprintf(buf, "%s\n", "multicast router");
return sysfs_emit(buf, "%s\n", "multicast router");
case PRIMARY_CONNECTOR:
if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
return sprintf(buf, "%s\n", "primary connector+");
return sysfs_emit(buf, "%s\n", "primary connector+");
else
return sprintf(buf, "%s\n", "primary connector");
return sysfs_emit(buf, "%s\n", "primary connector");
case SECONDARY_CONNECTOR:
if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
return sprintf(buf, "%s\n", "secondary connector+");
return sysfs_emit(buf, "%s\n", "secondary connector+");
else
return sprintf(buf, "%s\n", "secondary connector");
return sysfs_emit(buf, "%s\n", "secondary connector");
default:
return sprintf(buf, "%s\n", "no");
return sysfs_emit(buf, "%s\n", "no");
}
}
@ -138,7 +138,7 @@ static ssize_t qeth_l3_dev_sniffer_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%i\n", card->options.sniffer ? 1 : 0);
return sysfs_emit(buf, "%i\n", card->options.sniffer ? 1 : 0);
}
static ssize_t qeth_l3_dev_sniffer_store(struct device *dev,
@ -200,7 +200,7 @@ static ssize_t qeth_l3_dev_hsuid_show(struct device *dev,
memcpy(tmp_hsuid, card->options.hsuid, sizeof(tmp_hsuid));
EBCASC(tmp_hsuid, 8);
return sprintf(buf, "%s\n", tmp_hsuid);
return sysfs_emit(buf, "%s\n", tmp_hsuid);
}
static ssize_t qeth_l3_dev_hsuid_store(struct device *dev,
@ -285,7 +285,7 @@ static ssize_t qeth_l3_dev_ipato_enable_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", card->ipato.enabled ? 1 : 0);
return sysfs_emit(buf, "%u\n", card->ipato.enabled ? 1 : 0);
}
static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
@ -330,7 +330,7 @@ static ssize_t qeth_l3_dev_ipato_invert4_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", card->ipato.invert4 ? 1 : 0);
return sysfs_emit(buf, "%u\n", card->ipato.invert4 ? 1 : 0);
}
static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev,
@ -367,35 +367,21 @@ static ssize_t qeth_l3_dev_ipato_add_show(char *buf, struct qeth_card *card,
enum qeth_prot_versions proto)
{
struct qeth_ipato_entry *ipatoe;
int str_len = 0;
char addr_str[INET6_ADDRSTRLEN];
int offset = 0;
mutex_lock(&card->ip_lock);
list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
char addr_str[INET6_ADDRSTRLEN];
int entry_len;
if (ipatoe->proto != proto)
continue;
entry_len = qeth_l3_ipaddr_to_string(proto, ipatoe->addr,
addr_str);
if (entry_len < 0)
continue;
/* Append /%mask to the entry: */
entry_len += 1 + ((proto == QETH_PROT_IPV4) ? 2 : 3);
/* Enough room to format %entry\n into null terminated page? */
if (entry_len + 1 > PAGE_SIZE - str_len - 1)
break;
entry_len = scnprintf(buf, PAGE_SIZE - str_len,
"%s/%i\n", addr_str, ipatoe->mask_bits);
str_len += entry_len;
buf += entry_len;
qeth_l3_ipaddr_to_string(proto, ipatoe->addr, addr_str);
offset += sysfs_emit_at(buf, offset, "%s/%i\n",
addr_str, ipatoe->mask_bits);
}
mutex_unlock(&card->ip_lock);
return str_len ? str_len : scnprintf(buf, PAGE_SIZE, "\n");
return offset ? offset : sysfs_emit(buf, "\n");
}
static ssize_t qeth_l3_dev_ipato_add4_show(struct device *dev,
@ -501,7 +487,7 @@ static ssize_t qeth_l3_dev_ipato_invert6_show(struct device *dev,
{
struct qeth_card *card = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", card->ipato.invert6 ? 1 : 0);
return sysfs_emit(buf, "%u\n", card->ipato.invert6 ? 1 : 0);
}
static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev,
@ -586,35 +572,22 @@ static ssize_t qeth_l3_dev_ip_add_show(struct device *dev, char *buf,
enum qeth_ip_types type)
{
struct qeth_card *card = dev_get_drvdata(dev);
char addr_str[INET6_ADDRSTRLEN];
struct qeth_ipaddr *ipaddr;
int str_len = 0;
int offset = 0;
int i;
mutex_lock(&card->ip_lock);
hash_for_each(card->ip_htable, i, ipaddr, hnode) {
char addr_str[INET6_ADDRSTRLEN];
int entry_len;
if (ipaddr->proto != proto || ipaddr->type != type)
continue;
entry_len = qeth_l3_ipaddr_to_string(proto, (u8 *)&ipaddr->u,
addr_str);
if (entry_len < 0)
continue;
/* Enough room to format %addr\n into null terminated page? */
if (entry_len + 1 > PAGE_SIZE - str_len - 1)
break;
entry_len = scnprintf(buf, PAGE_SIZE - str_len, "%s\n",
addr_str);
str_len += entry_len;
buf += entry_len;
qeth_l3_ipaddr_to_string(proto, (u8 *)&ipaddr->u, addr_str);
offset += sysfs_emit_at(buf, offset, "%s\n", addr_str);
}
mutex_unlock(&card->ip_lock);
return str_len ? str_len : scnprintf(buf, PAGE_SIZE, "\n");
return offset ? offset : sysfs_emit(buf, "\n");
}
static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev,