+ bpf-remove-config_bpf_jit-dependency-on-config_modules-of.patch added to mm-unstable branch

+ bpf-remove-config_bpf_jit-dependency-on-config_modules-of.patch added to mm-unstable branch

[Andrew Morton]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 4069 bytes --]


The patch titled
     Subject: bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of
has been added to the -mm mm-unstable branch.  Its filename is
     bpf-remove-config_bpf_jit-dependency-on-config_modules-of.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/bpf-remove-config_bpf_jit-dependency-on-config_modules-of.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: "Mike Rapoport (IBM)" <rppt@kernel.org>
Subject: bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of
Date: Mon, 18 Sep 2023 10:29:55 +0300

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.

Link: https://lkml.kernel.org/r/20230918072955.2507221-14-rppt@kernel.org
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Suggested-by: Björn Töpel <bjorn@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Puranjay Mohan <puranjay12@gmail.com>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: Russell King (Oracle) <linux@armlinux.org.uk>
Cc: Song Liu <song@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/bpf/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/bpf/Kconfig~bpf-remove-config_bpf_jit-dependency-on-config_modules-of
+++ a/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
_

Patches currently in -mm which might be from rppt@kernel.org are

nios2-define-virtual-address-space-for-modules.patch
mm-introduce-execmem_text_alloc-and-execmem_free.patch
mm-execmem-arch-convert-simple-overrides-of-module_alloc-to-execmem.patch
mm-execmem-arch-convert-remaining-overrides-of-module_alloc-to-execmem.patch
modules-execmem-drop-module_alloc.patch
mm-execmem-introduce-execmem_data_alloc.patch
arm64-execmem-extend-execmem_params-for-generated-code-allocations.patch
riscv-extend-execmem_params-for-generated-code-allocations.patch
powerpc-extend-execmem_params-for-kprobes-allocations.patch
arch-make-execmem-setup-available-regardless-of-config_modules.patch
x86-ftrace-enable-dynamic-ftrace-without-config_modules.patch
kprobes-remove-dependency-on-config_modules.patch
bpf-remove-config_bpf_jit-dependency-on-config_modules-of.patch