Commit 5bf2fc1f authored by Aditya Pakki's avatar Aditya Pakki Committed by Daniel Borkmann

bpf: Remove unnecessary assertion on fp_old

The two callers of bpf_prog_realloc - bpf_patch_insn_single and
bpf_migrate_filter dereference the struct fp_old, before passing
it to the function. Thus assertion to check fp_old is unnecessary
and can be removed.
Signed-off-by: default avatarAditya Pakki <pakki001@umn.edu>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191219175735.19231-1-pakki001@umn.edu
parent 7745ff98
...@@ -222,8 +222,6 @@ struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size, ...@@ -222,8 +222,6 @@ struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
u32 pages, delta; u32 pages, delta;
int ret; int ret;
BUG_ON(fp_old == NULL);
size = round_up(size, PAGE_SIZE); size = round_up(size, PAGE_SIZE);
pages = size / PAGE_SIZE; pages = size / PAGE_SIZE;
if (pages <= fp_old->pages) if (pages <= fp_old->pages)
......
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