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[1/4] sysfs: constify bin_attribute argument of sysfs_bin_attr_simple_read()

Message ID 20241205-sysfs-const-bin_attr-simple-v1-1-4a4e4ced71e3@weissschuh.net (mailing list archive)
State Not Applicable
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Series sysfs: constify bin_attribute argument of sysfs_bin_attr_simple_read() | expand

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Commit Message

Thomas Weißschuh Dec. 5, 2024, 5:35 p.m. UTC 
Most users use this function through the BIN_ATTR_SIMPLE* macros,
they can handle the switch transparently.
Also adapt the two non-macro users in the same change.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
 arch/powerpc/platforms/powernv/opal.c | 2 +-
 fs/sysfs/file.c                       | 2 +-
 include/linux/sysfs.h                 | 4 ++--
 kernel/module/sysfs.c                 | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 5d0f35bb917ebced8c741cd3af2c511949a1d2ef..013637e2b2a8e6a4ec6b93a520f8d5d9d3245467 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -818,7 +818,7 @@  static int opal_add_one_export(struct kobject *parent, const char *export_name,
 	sysfs_bin_attr_init(attr);
 	attr->attr.name = name;
 	attr->attr.mode = 0400;
-	attr->read = sysfs_bin_attr_simple_read;
+	attr->read_new = sysfs_bin_attr_simple_read;
 	attr->private = __va(vals[0]);
 	attr->size = vals[1];
 
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 785408861c01c89fc84c787848243a13c1338367..6931308876c4ac3b4c19878d5e1158ad8fe4f16f 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -817,7 +817,7 @@  EXPORT_SYMBOL_GPL(sysfs_emit_at);
  * Returns number of bytes written to @buf.
  */
 ssize_t sysfs_bin_attr_simple_read(struct file *file, struct kobject *kobj,
-				   struct bin_attribute *attr, char *buf,
+				   const struct bin_attribute *attr, char *buf,
 				   loff_t off, size_t count)
 {
 	memcpy(buf, attr->private + off, count);
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 0f2fcd244523f050c5286f19d4fe1846506f9214..2205561159afdb57d0a250bb0439b28c01d9010e 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -511,7 +511,7 @@  __printf(3, 4)
 int sysfs_emit_at(char *buf, int at, const char *fmt, ...);
 
 ssize_t sysfs_bin_attr_simple_read(struct file *file, struct kobject *kobj,
-				   struct bin_attribute *attr, char *buf,
+				   const struct bin_attribute *attr, char *buf,
 				   loff_t off, size_t count);
 
 #else /* CONFIG_SYSFS */
@@ -774,7 +774,7 @@  static inline int sysfs_emit_at(char *buf, int at, const char *fmt, ...)
 
 static inline ssize_t sysfs_bin_attr_simple_read(struct file *file,
 						 struct kobject *kobj,
-						 struct bin_attribute *attr,
+						 const struct bin_attribute *attr,
 						 char *buf, loff_t off,
 						 size_t count)
 {
diff --git a/kernel/module/sysfs.c b/kernel/module/sysfs.c
index 456358e1fdc43e6b5b24f383bbefa37812971174..254017b58b645d4afcf6876d29bcc2e2113a8dc4 100644
--- a/kernel/module/sysfs.c
+++ b/kernel/module/sysfs.c
@@ -196,7 +196,7 @@  static int add_notes_attrs(struct module *mod, const struct load_info *info)
 			nattr->attr.mode = 0444;
 			nattr->size = info->sechdrs[i].sh_size;
 			nattr->private = (void *)info->sechdrs[i].sh_addr;
-			nattr->read = sysfs_bin_attr_simple_read;
+			nattr->read_new = sysfs_bin_attr_simple_read;
 			++nattr;
 		}
 		++loaded;