sysfs: add struct file* to bin_attr callbacks

This allows bin_attr->read,write,mmap callbacks to check file specific data
(such as inode owner) as part of any privilege validation.

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 8 insertions, 6 deletions

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 72c8b0d070c8..a689070be287 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -403,8 +403,9 @@ static ssize_t sys_ipl_device_show(struct kobject *kobj,
 static struct kobj_attribute sys_ipl_device_attr =
         __ATTR(device, S_IRUGO, sys_ipl_device_show, NULL);
 
-static ssize_t ipl_parameter_read(struct kobject *kobj, struct bin_attribute *attr,
-                                  char *buf, loff_t off, size_t count)
+static ssize_t ipl_parameter_read(struct file *filp, struct kobject *kobj,
+                                  struct bin_attribute *attr, char *buf,
+                                  loff_t off, size_t count)
 {
         return memory_read_from_buffer(buf, count, &off, IPL_PARMBLOCK_START,
                                         IPL_PARMBLOCK_SIZE);
@@ -419,8 +420,9 @@ static struct bin_attribute ipl_parameter_attr = {
         .read = &ipl_parameter_read,
 };
 
-static ssize_t ipl_scp_data_read(struct kobject *kobj, struct bin_attribute *attr,
-                                 char *buf, loff_t off, size_t count)
+static ssize_t ipl_scp_data_read(struct file *filp, struct kobject *kobj,
+                                 struct bin_attribute *attr, char *buf,
+                                 loff_t off, size_t count)
 {
         unsigned int size = IPL_PARMBLOCK_START->ipl_info.fcp.scp_data_len;
         void *scp_data = &IPL_PARMBLOCK_START->ipl_info.fcp.scp_data;
@@ -694,7 +696,7 @@ static struct kobj_attribute sys_reipl_ccw_vmparm_attr =
 
 /* FCP reipl device attributes */
 
-static ssize_t reipl_fcp_scpdata_read(struct kobject *kobj,
+static ssize_t reipl_fcp_scpdata_read(struct file *filp, struct kobject *kobj,
                                       struct bin_attribute *attr,
                                       char *buf, loff_t off, size_t count)
 {
@@ -704,7 +706,7 @@ static ssize_t reipl_fcp_scpdata_read(struct kobject *kobj,
         return memory_read_from_buffer(buf, count, &off, scp_data, size);
 }
 
-static ssize_t reipl_fcp_scpdata_write(struct kobject *kobj,
+static ssize_t reipl_fcp_scpdata_write(struct file *filp, struct kobject *kobj,
                                        struct bin_attribute *attr,
                                        char *buf, loff_t off, size_t count)
 {