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bpf,arena: Use helper sizeof_field in struct accessors

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Use the well defined helper sizeof_field() to calculate the size of a
struct member, instead of doing custom calculations.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Link: https://lore.kernel.org/r/20240327065334.8140-1-haiyue.wang@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Haiyue Wang 2024-03-27 14:53:29 +08:00 committed by Alexei Starovoitov
parent 786bf0e7e2
commit 55fc888ded
1 changed files with 1 additions and 1 deletions
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kernel/bpf/arena.c
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@ -37,7 +37,7 @@
*/
/* number of bytes addressable by LDX/STX insn with 16-bit 'off' field */
#define GUARD_SZ (1ull << sizeof(((struct bpf_insn *)0)->off) * 8)
#define GUARD_SZ (1ull << sizeof_field(struct bpf_insn, off) * 8)
#define KERN_VM_SZ (SZ_4G + GUARD_SZ)
struct bpf_arena {