From 301cf77e21317b3465c5e2bb0188df24bbf1c2e2 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 9 Jun 2023 11:04:53 +0200 Subject: [PATCH] x86/orc: Make the is_callthunk() definition depend on CONFIG_BPF_JIT=y MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Recent commit: 020126239b8f Revert "x86/orc: Make it callthunk aware" Made the only user of is_callthunk() depend on CONFIG_BPF_JIT=y, while the definition of the helper function is unconditional. Move is_callthunk() inside the #ifdef block. Addresses this build failure: arch/x86/kernel/callthunks.c:296:13: error: ‘is_callthunk’ defined but not used [-Werror=unused-function] Signed-off-by: Ingo Molnar Cc: Josh Poimboeuf Cc: linux-kernel@vger.kernel.org Cc: Peter Zijlstra --- arch/x86/kernel/callthunks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/callthunks.c b/arch/x86/kernel/callthunks.c index 8e0a9b6..fcb8eea 100644 --- a/arch/x86/kernel/callthunks.c +++ b/arch/x86/kernel/callthunks.c @@ -293,6 +293,7 @@ void *callthunks_translate_call_dest(void *dest) return target ? : dest; } +#ifdef CONFIG_BPF_JIT static bool is_callthunk(void *addr) { unsigned int tmpl_size = SKL_TMPL_SIZE; @@ -306,7 +307,6 @@ static bool is_callthunk(void *addr) return !bcmp((void *)(dest - tmpl_size), tmpl, tmpl_size); } -#ifdef CONFIG_BPF_JIT int x86_call_depth_emit_accounting(u8 **pprog, void *func) { unsigned int tmpl_size = SKL_TMPL_SIZE; -- 2.7.4