Commit 2390166a authored by Julian Wiedmann's avatar Julian Wiedmann Committed by David S. Miller
Browse files

s390/qeth: clean up L3 sysfs code 



Consolidate some duplicated code for adding RXIP/VIPA addresses, and
move the locking to where it's actually needed.

Signed-off-by: default avatarJulian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e6b1b7da

drivers/s390/net/qeth_l3_main.c

+11 −1
Original line number Diff line number Diff line
@@ -571,6 +571,7 @@ int qeth_l3_add_ipato_entry(struct qeth_card *card, 


	QETH_CARD_TEXT(card, 2, "addipato");



	mutex_lock(&card->conf_mutex);

	mutex_lock(&card->ip_lock);



	list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
@@ -590,6 +591,7 @@ int qeth_l3_add_ipato_entry(struct qeth_card *card, 
	}



	mutex_unlock(&card->ip_lock);

	mutex_unlock(&card->conf_mutex);



	return rc;

}
@@ -603,6 +605,7 @@ int qeth_l3_del_ipato_entry(struct qeth_card *card, 


	QETH_CARD_TEXT(card, 2, "delipato");



	mutex_lock(&card->conf_mutex);

	mutex_lock(&card->ip_lock);



	list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
@@ -619,6 +622,8 @@ int qeth_l3_del_ipato_entry(struct qeth_card *card, 
	}



	mutex_unlock(&card->ip_lock);

	mutex_unlock(&card->conf_mutex);



	return rc;

}
@@ -627,6 +632,7 @@ int qeth_l3_modify_rxip_vipa(struct qeth_card *card, bool add, const u8 *ip, 
			     enum qeth_prot_versions proto)

{

	struct qeth_ipaddr addr;

	int rc;



	qeth_l3_init_ipaddr(&addr, type, proto);

	if (proto == QETH_PROT_IPV4)
@@ -634,7 +640,11 @@ int qeth_l3_modify_rxip_vipa(struct qeth_card *card, bool add, const u8 *ip, 
	else

		memcpy(&addr.u.a6.addr, ip, 16);



	return qeth_l3_modify_ip(card, &addr, add);

	mutex_lock(&card->conf_mutex);

	rc = qeth_l3_modify_ip(card, &addr, add);

	mutex_unlock(&card->conf_mutex);



	return rc;

}



int qeth_l3_modify_hsuid(struct qeth_card *card, bool add)

drivers/s390/net/qeth_l3_sys.c

+22 −84
Original line number Diff line number Diff line
@@ -460,16 +460,14 @@ static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count, 
	int mask_bits;

	int rc = 0;



	mutex_lock(&card->conf_mutex);

	rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);

	if (rc)

		goto out;

		return rc;



	ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL);

	if (!ipatoe) {

		rc = -ENOMEM;

		goto out;

	}

	if (!ipatoe)

		return -ENOMEM;



	ipatoe->proto = proto;

	memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16);

	ipatoe->mask_bits = mask_bits;
@@ -477,8 +475,7 @@ static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count, 
	rc = qeth_l3_add_ipato_entry(card, ipatoe);

	if (rc)

		kfree(ipatoe);

out:

	mutex_unlock(&card->conf_mutex);



	return rc ? rc : count;

}
@@ -501,11 +498,9 @@ static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count, 
	int mask_bits;

	int rc = 0;



	mutex_lock(&card->conf_mutex);

	rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);

	if (!rc)

		rc = qeth_l3_del_ipato_entry(card, proto, addr, mask_bits);

	mutex_unlock(&card->conf_mutex);

	return rc ? rc : count;

}
@@ -650,63 +645,34 @@ static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev, 
				       QETH_IP_TYPE_VIPA);

}



static int qeth_l3_parse_vipae(const char *buf, enum qeth_prot_versions proto,

		 u8 *addr)

{

	if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {

		return -EINVAL;

	}

	return 0;

}



static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count,

			struct qeth_card *card, enum qeth_prot_versions proto)

static ssize_t qeth_l3_vipa_store(struct device *dev, const char *buf, bool add,

				  size_t count, enum qeth_prot_versions proto)

{

	struct qeth_card *card = dev_get_drvdata(dev);

	u8 addr[16] = {0, };

	int rc;



	mutex_lock(&card->conf_mutex);

	rc = qeth_l3_parse_vipae(buf, proto, addr);

	rc = qeth_l3_string_to_ipaddr(buf, proto, addr);

	if (!rc)

		rc = qeth_l3_modify_rxip_vipa(card, true, addr,

		rc = qeth_l3_modify_rxip_vipa(card, add, addr,

					      QETH_IP_TYPE_VIPA, proto);

	mutex_unlock(&card->conf_mutex);

	return rc ? rc : count;

}



static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV4);

	return qeth_l3_vipa_store(dev, buf, true, count, QETH_PROT_IPV4);

}



static QETH_DEVICE_ATTR(vipa_add4, add4, 0644,

			qeth_l3_dev_vipa_add4_show,

			qeth_l3_dev_vipa_add4_store);



static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count,

			 struct qeth_card *card, enum qeth_prot_versions proto)

{

	u8 addr[16];

	int rc;



	mutex_lock(&card->conf_mutex);

	rc = qeth_l3_parse_vipae(buf, proto, addr);

	if (!rc)

		rc = qeth_l3_modify_rxip_vipa(card, false, addr,

					      QETH_IP_TYPE_VIPA, proto);

	mutex_unlock(&card->conf_mutex);

	return rc ? rc : count;

}



static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV4);

	return qeth_l3_vipa_store(dev, buf, true, count, QETH_PROT_IPV4);

}



static QETH_DEVICE_ATTR(vipa_del4, del4, 0200, NULL,
@@ -723,9 +689,7 @@ static ssize_t qeth_l3_dev_vipa_add6_show(struct device *dev, 
static ssize_t qeth_l3_dev_vipa_add6_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV6);

	return qeth_l3_vipa_store(dev, buf, true, count, QETH_PROT_IPV6);

}



static QETH_DEVICE_ATTR(vipa_add6, add6, 0644,
@@ -735,9 +699,7 @@ static QETH_DEVICE_ATTR(vipa_add6, add6, 0644, 
static ssize_t qeth_l3_dev_vipa_del6_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV6);

	return qeth_l3_vipa_store(dev, buf, false, count, QETH_PROT_IPV6);

}



static QETH_DEVICE_ATTR(vipa_del6, del6, 0200, NULL,
@@ -790,54 +752,34 @@ static int qeth_l3_parse_rxipe(const char *buf, enum qeth_prot_versions proto, 
	return 0;

}



static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count,

			struct qeth_card *card, enum qeth_prot_versions proto)

static ssize_t qeth_l3_rxip_store(struct device *dev, const char *buf, bool add,

				  size_t count, enum qeth_prot_versions proto)

{

	struct qeth_card *card = dev_get_drvdata(dev);

	u8 addr[16] = {0, };

	int rc;



	mutex_lock(&card->conf_mutex);

	rc = qeth_l3_parse_rxipe(buf, proto, addr);

	if (!rc)

		rc = qeth_l3_modify_rxip_vipa(card, true, addr,

		rc = qeth_l3_modify_rxip_vipa(card, add, addr,

					      QETH_IP_TYPE_RXIP, proto);

	mutex_unlock(&card->conf_mutex);

	return rc ? rc : count;

}



static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV4);

	return qeth_l3_rxip_store(dev, buf, true, count, QETH_PROT_IPV4);

}



static QETH_DEVICE_ATTR(rxip_add4, add4, 0644,

			qeth_l3_dev_rxip_add4_show,

			qeth_l3_dev_rxip_add4_store);



static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count,

			struct qeth_card *card, enum qeth_prot_versions proto)

{

	u8 addr[16];

	int rc;



	mutex_lock(&card->conf_mutex);

	rc = qeth_l3_parse_rxipe(buf, proto, addr);

	if (!rc)

		rc = qeth_l3_modify_rxip_vipa(card, false, addr,

					      QETH_IP_TYPE_RXIP, proto);

	mutex_unlock(&card->conf_mutex);

	return rc ? rc : count;

}



static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV4);

	return qeth_l3_rxip_store(dev, buf, false, count, QETH_PROT_IPV4);

}



static QETH_DEVICE_ATTR(rxip_del4, del4, 0200, NULL,
@@ -854,9 +796,7 @@ static ssize_t qeth_l3_dev_rxip_add6_show(struct device *dev, 
static ssize_t qeth_l3_dev_rxip_add6_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV6);

	return qeth_l3_rxip_store(dev, buf, true, count, QETH_PROT_IPV6);

}



static QETH_DEVICE_ATTR(rxip_add6, add6, 0644,
@@ -866,9 +806,7 @@ static QETH_DEVICE_ATTR(rxip_add6, add6, 0644, 
static ssize_t qeth_l3_dev_rxip_del6_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct qeth_card *card = dev_get_drvdata(dev);



	return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV6);

	return qeth_l3_rxip_store(dev, buf, false, count, QETH_PROT_IPV6);

}



static QETH_DEVICE_ATTR(rxip_del6, del6, 0200, NULL,

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