diff options
| author | Amery Hung <ameryhung@gmail.com> | 2026-08-01 00:46:24 -0700 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-08-03 00:29:14 +0200 |
| commit | c0e091f30f0dd80d817c3a15d0a97962957e5786 (patch) | |
| tree | 62aefde31812aa47d0ace050e91c7d7c60590259 /include | |
| parent | e566701b9b0c1ec398152cb972d592992984e1a8 (diff) | |
bpf: Rename ARG_CONST_SIZE{,_OR_ZERO} to ARG_MEM_SIZE{,_OR_ZERO}
ARG_CONST_SIZE does not require a constant: check_mem_size_reg() accepts
any bounded scalar and verifies the memory access against its maximum
(reg_umax). Rename ARG_CONST_SIZE and ARG_CONST_SIZE_OR_ZERO to
ARG_MEM_SIZE and ARG_MEM_SIZE_OR_ZERO to reflect that. ARG_CONST_ALLOC_
SIZE_OR_ZERO, which does require a constant, is left unchanged.
Pure rename, no functional change.
Signed-off-by: Amery Hung <ameryhung@gmail.com>
Link: https://lore.kernel.org/bpf/20260801074633.1595644-10-ameryhung@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf.h | 4 | ||||
| -rw-r--r-- | include/linux/bpf_verifier.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 7bfc28673124..be53655d1362 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -888,8 +888,8 @@ enum bpf_arg_type { ARG_PTR_TO_MEM, /* pointer to valid memory (stack, packet, map value) */ ARG_PTR_TO_ARENA, - ARG_CONST_SIZE, /* number of bytes accessed from memory */ - ARG_CONST_SIZE_OR_ZERO, /* number of bytes accessed from memory or 0 */ + ARG_MEM_SIZE, /* number of bytes accessed from memory */ + ARG_MEM_SIZE_OR_ZERO, /* number of bytes accessed from memory or 0 */ ARG_PTR_TO_CTX, /* pointer to context */ ARG_ANYTHING, /* any (initialized) argument is ok */ diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 682c2cd3b844..bb0d43814e90 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -15,7 +15,7 @@ * ensures that umax_value + (int)off + (int)size cannot overflow a u64. */ #define BPF_MAX_VAR_OFF (1 << 29) -/* Maximum variable size permitted for ARG_CONST_SIZE[_OR_ZERO]. This ensures +/* Maximum variable size permitted for ARG_MEM_SIZE[_OR_ZERO]. This ensures * that converting umax_value to int cannot overflow. */ #define BPF_MAX_VAR_SIZ (1 << 29) |