netdev - [PATCH v7 04/16] sparc: simplify module

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Date: Mon, 29 Apr 2024 15:16:08 +0300
From: Mike Rapoport <rppt@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Alexandre Ghiti <alexghiti@...osinc.com>,
	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>,
	Donald Dutile <ddutile@...hat.com>,
	Eric Chanudet <echanude@...hat.com>,
	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>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Mike Rapoport <rppt@...nel.org>,
	Nadav Amit <nadav.amit@...il.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Philippe Mathieu-Daudé <philmd@...aro.org>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>,
	Russell King <linux@...linux.org.uk>,
	Sam Ravnborg <sam@...nborg.org>,
	Song Liu <song@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Will Deacon <will@...nel.org>,
	bpf@...r.kernel.org,
	linux-arch@...r.kernel.org,
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	loongarch@...ts.linux.dev,
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	sparclinux@...r.kernel.org,
	x86@...nel.org
Subject: [PATCH v7 04/16] sparc: simplify module_alloc()

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

Define MODULES_VADDR and MODULES_END as VMALLOC_START and VMALLOC_END
for 32-bit and reduce module_alloc() to

	__vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, ...)

as with the new defines the allocations becomes identical for both 32
and 64 bits.

While on it, drop unused include of <linux/jump_label.h>

Suggested-by: Sam Ravnborg <sam@...nborg.org>
Signed-off-by: Mike Rapoport (IBM) <rppt@...nel.org>
Reviewed-by: Sam Ravnborg <sam@...nborg.org>
---
 arch/sparc/include/asm/pgtable_32.h |  2 ++
 arch/sparc/kernel/module.c          | 25 +------------------------
 2 files changed, 3 insertions(+), 24 deletions(-)

diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 9e85d57ac3f2..62bcafe38b1f 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -432,6 +432,8 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
 
 #define VMALLOC_START           _AC(0xfe600000,UL)
 #define VMALLOC_END             _AC(0xffc00000,UL)
+#define MODULES_VADDR           VMALLOC_START
+#define MODULES_END             VMALLOC_END
 
 /* We provide our own get_unmapped_area to cope with VA holes for userland */
 #define HAVE_ARCH_UNMAPPED_AREA
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 66c45a2764bc..d37adb2a0b54 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -21,35 +21,12 @@
 
 #include "entry.h"
 
-#ifdef CONFIG_SPARC64
-
-#include <linux/jump_label.h>
-
-static void *module_map(unsigned long size)
+void *module_alloc(unsigned long size)
 {
-	if (PAGE_ALIGN(size) > MODULES_LEN)
-		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
 				GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
-#else
-static void *module_map(unsigned long size)
-{
-	return vmalloc(size);
-}
-#endif /* CONFIG_SPARC64 */
-
-void *module_alloc(unsigned long size)
-{
-	void *ret;
-
-	ret = module_map(size);
-	if (ret)
-		memset(ret, 0, size);
-
-	return ret;
-}
 
 /* Make generic code ignore STT_REGISTER dummy undefined symbols.  */
 int module_frob_arch_sections(Elf_Ehdr *hdr,
-- 
2.43.0