| Message ID | 20241103-sysfs-const-bin_attr-v2-5-71110628844c@weissschuh.net (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | sysfs: constify struct bin_attribute (Part 1) | expand |
On Sun, 3 Nov 2024, Thomas Weißschuh wrote: > 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/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) Hi Thomas, This driver is reworked in pdx86/for-next.
On Sun, Nov 03, 2024 at 05:03:34PM +0000, Thomas Weißschuh wrote: > 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(-) For infiniband: Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Thomas Weißschuh wrote: > 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); For CXL Acked-by: Ira Weiny <ira.weiny@intel.com>
Thomas, > 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. For scsi: Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
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
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(-)