Commit 431bfb9e authored by Tiezhu Yang's avatar Tiezhu Yang Committed by Daniel Borkmann
Browse files

bpf, mips: Fix comment on tail call count limiting 



In emit_tail_call() of bpf_jit_comp32.c, "blez t2" (t2 <= 0) is
not consistent with the comment "t2 < 0", update the comment to
keep consistency.

Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarJohan Almbladh <johan.almbladh@anyfinetworks.com>
Link: https://lore.kernel.org/bpf/1633915150-13220-3-git-send-email-yangtiezhu@loongson.cn
parent 307d149d

arch/mips/net/bpf_jit_comp32.c

+1 −1
Original line number Diff line number Diff line
@@ -1315,7 +1315,7 @@ static int emit_tail_call(struct jit_context *ctx) 
	/* if (TCC-- <= 0) goto out */

	emit(ctx, lw, t2, ctx->stack_size, MIPS_R_SP);  /* t2 = *(SP + size) */

	emit_load_delay(ctx);                     /* Load delay slot         */

	emit(ctx, blez, t2, get_offset(ctx, 1));  /* PC += off(1) if t2 < 0  */

	emit(ctx, blez, t2, get_offset(ctx, 1));  /* PC += off(1) if t2 <= 0 */

	emit(ctx, addiu, t2, t2, -1);             /* t2-- (delay slot)       */

	emit(ctx, sw, t2, ctx->stack_size, MIPS_R_SP);  /* *(SP + size) = t2 */