[PATCH v2 05/10] sysfs: treewide: constify attribute callback of bin_is_visible()

Thomas Weißschuh
2024-11-03T17:04:43Z

The is_bin_visible() callbacks should not modify the struct
bin_attribute passed as argument.
Enforce this by marking the argument as const.

As there are not many callback implementers perform this change
throughout the tree at once.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
drivers/cxl/port.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
drivers/infiniband/hw/qib/qib_sysfs.c | 2 +-
drivers/mtd/spi-nor/sysfs.c | 2 +-
drivers/nvmem/core.c | 3 ++-
drivers/pci/pci-sysfs.c | 2 +-
drivers/pci/vpd.c | 2 +-
drivers/platform/x86/amd/hsmp.c | 2 +-
drivers/platform/x86/intel/sdsi.c | 2 +-
drivers/scsi/scsi_sysfs.c | 2 +-
drivers/usb/core/sysfs.c | 2 +-
include/linux/sysfs.h | 30 +++++++++++++++---------------
12 files changed, 27 insertions(+), 26 deletions(-)

diff --git a/drivers/cxl/port.c b/drivers/cxl/port.c
index 9dc394295e1fcd1610813837b2f515b66995eb25..24041cf85cfbe6c54c467ac325e48c775562b938 100644
--- a/drivers/cxl/port.c
+++ b/drivers/cxl/port.c
@@ -173,7 +173,7 @@ static ssize_t CDAT_read(struct file *filp, struct kobject *kobj,
static BIN_ATTR_ADMIN_RO(CDAT, 0);

static umode_t cxl_port_bin_attr_is_visible(struct kobject *kobj,
- struct bin_attribute *attr, int i)
+ const struct bin_attribute *attr, int i)
{
struct device *dev = kobj_to_dev(kobj);
struct cxl_port *port = to_cxl_port(dev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 0b28b2cf1517d130da01989df70b9dff6433edc4..c1c329eb920b52af100a93bdf00df450e25608c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -3999,7 +3999,7 @@ static umode_t amdgpu_flash_attr_is_visible(struct kobject *kobj, struct attribu
}

static umode_t amdgpu_bin_flash_attr_is_visible(struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
int idx)
{
struct device *dev = kobj_to_dev(kobj);
diff --git a/drivers/infiniband/hw/qib/qib_sysfs.c b/drivers/infiniband/hw/qib/qib_sysfs.c
index 53ec7510e4ebfb144e79884ca7dd7d0c873bd8a7..ba2cd68b53e6c240f1afc65c64012c75ccf488e0 100644
--- a/drivers/infiniband/hw/qib/qib_sysfs.c
+++ b/drivers/infiniband/hw/qib/qib_sysfs.c
@@ -283,7 +283,7 @@ static struct bin_attribute *port_ccmgta_attributes[] = {
};

static umode_t qib_ccmgta_is_bin_visible(struct kobject *kobj,
- struct bin_attribute *attr, int n)
+ const struct bin_attribute *attr, int n)
{
struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj);

diff --git a/drivers/mtd/spi-nor/sysfs.c b/drivers/mtd/spi-nor/sysfs.c
index 96064e4babf01f6950c81586764386e7671cbf97..5e9eb268073d18e0a46089000f18a3200b4bf13d 100644
--- a/drivers/mtd/spi-nor/sysfs.c
+++ b/drivers/mtd/spi-nor/sysfs.c
@@ -87,7 +87,7 @@ static umode_t spi_nor_sysfs_is_visible(struct kobject *kobj,
}

static umode_t spi_nor_sysfs_is_bin_visible(struct kobject *kobj,
- struct bin_attribute *attr, int n)
+ const struct bin_attribute *attr, int n)
{
struct spi_device *spi = to_spi_device(kobj_to_dev(kobj));
struct spi_mem *spimem = spi_get_drvdata(spi);
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 63370c76394ee9b8d514da074779617cef67c311..73e44d724f90f4cd8fe8cafb9fa0c0fb23078e61 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -298,7 +298,8 @@ static umode_t nvmem_bin_attr_get_umode(struct nvmem_device *nvmem)
}

static umode_t nvmem_bin_attr_is_visible(struct kobject *kobj,
- struct bin_attribute *attr, int i)
+ const struct bin_attribute *attr,
+ int i)
{
struct device *dev = kobj_to_dev(kobj);
struct nvmem_device *nvmem = to_nvmem_device(dev);
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 040f01b2b999175e8d98b05851edc078bbabbe0d..13912940ed2bb66c0086e5bea9a3cb6417ac14dd 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1326,7 +1326,7 @@ static struct bin_attribute *pci_dev_rom_attrs[] = {
};

static umode_t pci_dev_rom_attr_is_visible(struct kobject *kobj,
- struct bin_attribute *a, int n)
+ const struct bin_attribute *a, int n)
{
struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj));

diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c
index e4300f5f304f3ca55a657fd25a1fa5ed919737a7..a469bcbc0da7f7677485c7f999f8dfb58b8ae8a3 100644
--- a/drivers/pci/vpd.c
+++ b/drivers/pci/vpd.c
@@ -325,7 +325,7 @@ static struct bin_attribute *vpd_attrs[] = {
};

static umode_t vpd_attr_is_visible(struct kobject *kobj,
- struct bin_attribute *a, int n)
+ const struct bin_attribute *a, int n)
{
struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj));

diff --git a/drivers/platform/x86/amd/hsmp.c b/drivers/platform/x86/amd/hsmp.c
index 8fcf38eed7f00ee01aade6e3e55e20402458d5aa..8f00850c139fa8d419bc1c140c1832bf84b2c3bd 100644
--- a/drivers/platform/x86/amd/hsmp.c
+++ b/drivers/platform/x86/amd/hsmp.c
@@ -620,7 +620,7 @@ static int hsmp_get_tbl_dram_base(u16 sock_ind)
}

static umode_t hsmp_is_sock_attr_visible(struct kobject *kobj,
- struct bin_attribute *battr, int id)
+ const struct bin_attribute *battr, int id)
{
if (plat_dev.proto_ver == HSMP_PROTO_VER6)
return battr->attr.mode;
diff --git a/drivers/platform/x86/intel/sdsi.c b/drivers/platform/x86/intel/sdsi.c
index 9d137621f0e6e7a23be0e0bbc6175c51c403169f..33f33b1070fdc949c1373251c3bca4234d9da119 100644
--- a/drivers/platform/x86/intel/sdsi.c
+++ b/drivers/platform/x86/intel/sdsi.c
@@ -541,7 +541,7 @@ static struct bin_attribute *sdsi_bin_attrs[] = {
};

static umode_t
-sdsi_battr_is_visible(struct kobject *kobj, struct bin_attribute *attr, int n)
+sdsi_battr_is_visible(struct kobject *kobj, const struct bin_attribute *attr, int n)
{
struct device *dev = kobj_to_dev(kobj);
struct sdsi_priv *priv = dev_get_drvdata(dev);
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 32f94db6d6bf5d2bd289c1a121da7ffc6a7cb2ff..f3a1ecb42128a2b221ca5c362e041eb59dba0f20 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1274,7 +1274,7 @@ static umode_t scsi_sdev_attr_is_visible(struct kobject *kobj,
}

static umode_t scsi_sdev_bin_attr_is_visible(struct kobject *kobj,
- struct bin_attribute *attr, int i)
+ const struct bin_attribute *attr, int i)
{
struct device *dev = kobj_to_dev(kobj);
struct scsi_device *sdev = to_scsi_device(dev);
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 61b6d978892c799e213018bed22d9fb12a19d429..b4cba23831acd2d7d395b9f7683cd3ee3a8623c8 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -925,7 +925,7 @@ static struct bin_attribute *dev_bin_attrs[] = {
};

static umode_t dev_bin_attrs_are_visible(struct kobject *kobj,
- struct bin_attribute *a, int n)
+ const struct bin_attribute *a, int n)
{
struct device *dev = kobj_to_dev(kobj);
struct usb_device *udev = to_usb_device(dev);
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 4746cccb95898b24df6f53de9421ea7649b5568f..d1b22d56198b55ee39fe4c4fc994f5b753641992 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -101,7 +101,7 @@ struct attribute_group {
umode_t (*is_visible)(struct kobject *,
struct attribute *, int);
umode_t (*is_bin_visible)(struct kobject *,
- struct bin_attribute *, int);
+ const struct bin_attribute *, int);
size_t (*bin_size)(struct kobject *,
const struct bin_attribute *,
int);
@@ -199,22 +199,22 @@ struct attribute_group {
* attributes, the group visibility is determined by the function
* specified to is_visible() not is_bin_visible()
*/
-#define DEFINE_SYSFS_BIN_GROUP_VISIBLE(name) \
- static inline umode_t sysfs_group_visible_##name( \
- struct kobject *kobj, struct bin_attribute *attr, int n) \
- { \
- if (n == 0 && !name##_group_visible(kobj)) \
- return SYSFS_GROUP_INVISIBLE; \
- return name##_attr_visible(kobj, attr, n); \
+#define DEFINE_SYSFS_BIN_GROUP_VISIBLE(name) \
+ static inline umode_t sysfs_group_visible_##name( \
+ struct kobject *kobj, const struct bin_attribute *attr, int n) \
+ { \
+ if (n == 0 && !name##_group_visible(kobj)) \
+ return SYSFS_GROUP_INVISIBLE; \
+ return name##_attr_visible(kobj, attr, n); \
}

-#define DEFINE_SIMPLE_SYSFS_BIN_GROUP_VISIBLE(name) \
- static inline umode_t sysfs_group_visible_##name( \
- struct kobject *kobj, struct bin_attribute *a, int n) \
- { \
- if (n == 0 && !name##_group_visible(kobj)) \
- return SYSFS_GROUP_INVISIBLE; \
- return a->mode; \
+#define DEFINE_SIMPLE_SYSFS_BIN_GROUP_VISIBLE(name) \
+ static inline umode_t sysfs_group_visible_##name( \
+ struct kobject *kobj, const struct bin_attribute *a, int n) \
+ { \
+ if (n == 0 && !name##_group_visible(kobj)) \
+ return SYSFS_GROUP_INVISIBLE; \
+ return a->mode; \
}

#define SYSFS_GROUP_VISIBLE(fn) sysfs_group_visible_##fn

--
2.47.0