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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 01:33:23 -0700 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-09-04 12:58:04 +0200 |
| commit | 836b2fe544a5e9b5ce116622cb36fba33838c6fd (patch) | |
| tree | 95e38e4aaa0a6a78e373148b3d0af4aa2ab3d371 /drivers/nvmem/internals.h | |
| download | linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.tar.gz linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.zip | |
selftests/bpf: Check that JMP32 pointer vs zero jumps are not predictedgrafted
Add jmp32_ptr_vs_zero_jne: the fall-through of the 32-bit compare, which
the verifier used to skip, contains an out of bounds map value access,
hence w/o the previous patch the program is accepted. See previous patch
for detailed description.
Reported-by: Nicholas Carlini <npc@anthropic.com>
Suggested-by: Nicholas Carlini <npc@anthropic.com>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'drivers/nvmem/internals.h')
| -rw-r--r-- | drivers/nvmem/internals.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/nvmem/internals.h b/drivers/nvmem/internals.h new file mode 100644 index 000000000..f6d452b6a --- /dev/null +++ b/drivers/nvmem/internals.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_NVMEM_INTERNALS_H +#define _LINUX_NVMEM_INTERNALS_H + +#include <linux/device.h> +#include <linux/nvmem-consumer.h> +#include <linux/nvmem-provider.h> + +struct nvmem_device { + struct module *owner; + struct device dev; + struct list_head node; + int stride; + int word_size; + int id; + struct kref refcnt; + size_t size; + bool read_only; + bool root_only; + int flags; + enum nvmem_type type; + struct bin_attribute eeprom; + struct device *base_dev; + struct list_head cells; + void (*fixup_dt_cell_info)(struct nvmem_device *nvmem, + struct nvmem_cell_info *cell); + const struct nvmem_keepout *keepout; + unsigned int nkeepout; + nvmem_reg_read_t reg_read; + nvmem_reg_write_t reg_write; + struct gpio_desc *wp_gpio; + struct nvmem_layout *layout; + void *priv; + bool sysfs_cells_populated; +}; + +int nvmem_add_cells_from_dt(struct nvmem_device *nvmem, struct device_node *np); + +#if IS_ENABLED(CONFIG_OF) +int nvmem_layout_bus_register(void); +void nvmem_layout_bus_unregister(void); +int nvmem_populate_layout(struct nvmem_device *nvmem); +void nvmem_destroy_layout(struct nvmem_device *nvmem); +#else /* CONFIG_OF */ +static inline int nvmem_layout_bus_register(void) +{ + return 0; +} + +static inline void nvmem_layout_bus_unregister(void) {} + +static inline int nvmem_populate_layout(struct nvmem_device *nvmem) +{ + return 0; +} + +static inline void nvmem_destroy_layout(struct nvmem_device *nvmem) { } +#endif /* CONFIG_OF */ + +#endif /* ifndef _LINUX_NVMEM_INTERNALS_H */ |