[PATCH bpf-next v1 2/7] bpf, x86: Use resolved pointer for timed may_goto

[Siddharth Chintamaneni]

The timed may_goto fixup now passes the resolved counter pointer through
BPF_REG_AX instead of a stack offset.

Use the pointer directly rather than adding it to RBP. This preserves the
private-stack address selected by the JIT through R9.

Fixes: 2fb761823ead ("bpf, x86: Add x86 JIT support for timed may_goto")
Reported-by: Jeremy Jean <jeremy.jean at oss.cyber.gouv.fr>
Link: https://lore.kernel.org/all/20260824213158.3755932-2-Jeremy.Jean@oss.cyber.gouv.fr/
Signed-off-by: Siddharth Chintamaneni <sidchintamaneni at gmail.com>
---
 arch/x86/net/bpf_timed_may_goto.S | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/x86/net/bpf_timed_may_goto.S b/arch/x86/net/bpf_timed_may_goto.S
index 54c690cae190..6e9d9e7c2b1d 100644
--- a/arch/x86/net/bpf_timed_may_goto.S
+++ b/arch/x86/net/bpf_timed_may_goto.S
@@ -11,12 +11,6 @@
 SYM_FUNC_START(arch_bpf_timed_may_goto)
 	ANNOTATE_NOENDBR
 
-	/*
-	 * r10 passes us stack depth, load the pointer to count and timestamp
-	 * into r10 by adding it to BPF frame pointer.
-	 */
-	leaq (%rbp, %r10, 1), %r10
-
 	/* Setup frame. */
 	pushq %rbp
 	movq %rsp, %rbp
-- 
2.43.0