netdev - [PATCH v3 13/13] bpf: remove CONFIG_BPF_JIT dependency on CONFIG

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Message-Id: <20230918072955.2507221-14-rppt@kernel.org>
Date: Mon, 18 Sep 2023 10:29:55 +0300
From: Mike Rapoport <rppt@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Björn Töpel <bjorn@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	"David S. Miller" <davem@...emloft.net>,
	Dinh Nguyen <dinguyen@...nel.org>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Helge Deller <deller@....de>,
	Huacai Chen <chenhuacai@...nel.org>,
	Kent Overstreet <kent.overstreet@...ux.dev>,
	Luis Chamberlain <mcgrof@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Mike Rapoport <rppt@...nel.org>,
	Nadav Amit <nadav.amit@...il.com>,
	"Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Puranjay Mohan <puranjay12@...il.com>,
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	Russell King <linux@...linux.org.uk>,
	Song Liu <song@...nel.org>,
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	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Will Deacon <will@...nel.org>,
	bpf@...r.kernel.org,
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Subject: [PATCH v3 13/13] bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of

From: "Mike Rapoport (IBM)" <rppt@...nel.org>

BPF just-in-time compiler depended on CONFIG_MODULES because it used
module_alloc() to allocate memory for the generated code.

Since code allocations are now implemented with execmem, drop dependency of
CONFIG_BPF_JIT on CONFIG_MODULES and make it select CONFIG_EXECMEM.

Suggested-by: Björn Töpel <bjorn@...nel.org>
Signed-off-by: Mike Rapoport (IBM) <rppt@...nel.org>
---
 kernel/bpf/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/Kconfig b/kernel/bpf/Kconfig
index 6a906ff93006..5be11c906f93 100644
--- a/kernel/bpf/Kconfig
+++ b/kernel/bpf/Kconfig
@@ -42,7 +42,7 @@ config BPF_JIT
 	bool "Enable BPF Just In Time compiler"
 	depends on BPF
 	depends on HAVE_CBPF_JIT || HAVE_EBPF_JIT
-	depends on MODULES
+	select EXECMEM
 	help
 	  BPF programs are normally handled by a BPF interpreter. This option
 	  allows the kernel to generate native code when a program is loaded
-- 
2.39.2