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Message-Id: <20241216-sysfs-const-bin_attr-scsi-v1-10-f0a5e54b3437@weissschuh.net>
Date: Mon, 16 Dec 2024 12:29:17 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Adam Radford <aradford@...il.com>,
Bradley Grove <linuxdrivers@...otech.com>,
Tyrel Datwyler <tyreld@...ux.ibm.com>,
Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Naveen N Rao <naveen@...nel.org>, Madhavan Srinivasan <maddy@...ux.ibm.com>,
James Smart <james.smart@...adcom.com>,
Dick Kennedy <dick.kennedy@...adcom.com>, Brian King <brking@...ibm.com>,
Saurav Kashyap <skashyap@...vell.com>, Javed Hasan <jhasan@...vell.com>,
GR-QLogic-Storage-Upstream@...vell.com, Nilesh Javali <njavali@...vell.com>,
Manish Rangankar <mrangankar@...vell.com>
Cc: linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 10/11] scsi: qla2xxx: Constify 'struct bin_attribute'
The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
drivers/scsi/qla2xxx/qla_attr.c | 80 ++++++++++++++++++++---------------------
1 file changed, 40 insertions(+), 40 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index e6ece30c43486ce8f268e369f317e850994ed008..dcb0c2af1fa7cf9b63a5613c01b792143142a412 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -17,7 +17,7 @@ static int qla24xx_vport_disable(struct fc_vport *, bool);
static ssize_t
qla2x00_sysfs_read_fw_dump(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -58,7 +58,7 @@ qla2x00_sysfs_read_fw_dump(struct file *filp, struct kobject *kobj,
static ssize_t
qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -168,19 +168,19 @@ qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_fw_dump_attr = {
+static const struct bin_attribute sysfs_fw_dump_attr = {
.attr = {
.name = "fw_dump",
.mode = S_IRUSR | S_IWUSR,
},
.size = 0,
- .read = qla2x00_sysfs_read_fw_dump,
- .write = qla2x00_sysfs_write_fw_dump,
+ .read_new = qla2x00_sysfs_read_fw_dump,
+ .write_new = qla2x00_sysfs_write_fw_dump,
};
static ssize_t
qla2x00_sysfs_read_nvram(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -220,7 +220,7 @@ qla2x00_sysfs_read_nvram(struct file *filp, struct kobject *kobj,
static ssize_t
qla2x00_sysfs_write_nvram(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -282,19 +282,19 @@ qla2x00_sysfs_write_nvram(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_nvram_attr = {
+static const struct bin_attribute sysfs_nvram_attr = {
.attr = {
.name = "nvram",
.mode = S_IRUSR | S_IWUSR,
},
.size = 512,
- .read = qla2x00_sysfs_read_nvram,
- .write = qla2x00_sysfs_write_nvram,
+ .read_new = qla2x00_sysfs_read_nvram,
+ .write_new = qla2x00_sysfs_write_nvram,
};
static ssize_t
qla2x00_sysfs_read_optrom(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -318,7 +318,7 @@ qla2x00_sysfs_read_optrom(struct file *filp, struct kobject *kobj,
static ssize_t
qla2x00_sysfs_write_optrom(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -344,19 +344,19 @@ qla2x00_sysfs_write_optrom(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_optrom_attr = {
+static const struct bin_attribute sysfs_optrom_attr = {
.attr = {
.name = "optrom",
.mode = S_IRUSR | S_IWUSR,
},
.size = 0,
- .read = qla2x00_sysfs_read_optrom,
- .write = qla2x00_sysfs_write_optrom,
+ .read_new = qla2x00_sysfs_read_optrom,
+ .write_new = qla2x00_sysfs_write_optrom,
};
static ssize_t
qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -529,18 +529,18 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
return rval;
}
-static struct bin_attribute sysfs_optrom_ctl_attr = {
+static const struct bin_attribute sysfs_optrom_ctl_attr = {
.attr = {
.name = "optrom_ctl",
.mode = S_IWUSR,
},
.size = 0,
- .write = qla2x00_sysfs_write_optrom_ctl,
+ .write_new = qla2x00_sysfs_write_optrom_ctl,
};
static ssize_t
qla2x00_sysfs_read_vpd(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -587,7 +587,7 @@ qla2x00_sysfs_read_vpd(struct file *filp, struct kobject *kobj,
static ssize_t
qla2x00_sysfs_write_vpd(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -642,19 +642,19 @@ qla2x00_sysfs_write_vpd(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_vpd_attr = {
+static const struct bin_attribute sysfs_vpd_attr = {
.attr = {
.name = "vpd",
.mode = S_IRUSR | S_IWUSR,
},
.size = 0,
- .read = qla2x00_sysfs_read_vpd,
- .write = qla2x00_sysfs_write_vpd,
+ .read_new = qla2x00_sysfs_read_vpd,
+ .write_new = qla2x00_sysfs_write_vpd,
};
static ssize_t
qla2x00_sysfs_read_sfp(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -679,18 +679,18 @@ qla2x00_sysfs_read_sfp(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_sfp_attr = {
+static const struct bin_attribute sysfs_sfp_attr = {
.attr = {
.name = "sfp",
.mode = S_IRUSR | S_IWUSR,
},
.size = SFP_DEV_SIZE,
- .read = qla2x00_sysfs_read_sfp,
+ .read_new = qla2x00_sysfs_read_sfp,
};
static ssize_t
qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -823,19 +823,19 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_reset_attr = {
+static const struct bin_attribute sysfs_reset_attr = {
.attr = {
.name = "reset",
.mode = S_IWUSR,
},
.size = 0,
- .write = qla2x00_sysfs_write_reset,
+ .write_new = qla2x00_sysfs_write_reset,
};
static ssize_t
qla2x00_issue_logo(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
- char *buf, loff_t off, size_t count)
+ const struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
@@ -866,18 +866,18 @@ qla2x00_issue_logo(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_issue_logo_attr = {
+static const struct bin_attribute sysfs_issue_logo_attr = {
.attr = {
.name = "issue_logo",
.mode = S_IWUSR,
},
.size = 0,
- .write = qla2x00_issue_logo,
+ .write_new = qla2x00_issue_logo,
};
static ssize_t
qla2x00_sysfs_read_xgmac_stats(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -929,18 +929,18 @@ qla2x00_sysfs_read_xgmac_stats(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_xgmac_stats_attr = {
+static const struct bin_attribute sysfs_xgmac_stats_attr = {
.attr = {
.name = "xgmac_stats",
.mode = S_IRUSR,
},
.size = 0,
- .read = qla2x00_sysfs_read_xgmac_stats,
+ .read_new = qla2x00_sysfs_read_xgmac_stats,
};
static ssize_t
qla2x00_sysfs_read_dcbx_tlv(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
@@ -987,18 +987,18 @@ qla2x00_sysfs_read_dcbx_tlv(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute sysfs_dcbx_tlv_attr = {
+static const struct bin_attribute sysfs_dcbx_tlv_attr = {
.attr = {
.name = "dcbx_tlv",
.mode = S_IRUSR,
},
.size = 0,
- .read = qla2x00_sysfs_read_dcbx_tlv,
+ .read_new = qla2x00_sysfs_read_dcbx_tlv,
};
static struct sysfs_entry {
char *name;
- struct bin_attribute *attr;
+ const struct bin_attribute *attr;
int type;
} bin_file_entries[] = {
{ "fw_dump", &sysfs_fw_dump_attr, },
--
2.47.1
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