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From: Sourabh Jain <sourabhjain@linux.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Andrew Morton <akpm@linux-foundation.org>,
	Baoquan He <baoquan.he@linux.dev>,
	Mike Rapoport <rppt@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Pasha Tatashin <pasha.tatashin@soleen.com>,
	Paul Walmsley <pjw@kernel.org>,
	Pratyush Yadav <pratyush@kernel.org>,
	linux-riscv@lists.infradead.org, kexec@lists.infradead.org
Subject: [PATCH] kexec_file: remove unused arch_kexec_locate_mem_hole hook
Date: Thu, 27 Aug 2026 20:14:52 +0530	[thread overview]
Message-ID: <20260827144452.508328-1-sourabhjain@linux.ibm.com> (raw)

No architecture provides an implementation of
arch_kexec_locate_mem_hole(). Use kexec_locate_mem_hole() directly
and remove the unused fallback wrapper from the kexec header.

This simplifies the kexec memory allocation path without changing
its behavior.

Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Paul Walmsley <pjw@kernel.org>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: linux-riscv@lists.infradead.org
Cc: kexec@lists.infradead.org
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
---
 arch/riscv/kernel/kexec_elf.c |  2 +-
 include/linux/kexec.h         | 15 ---------------
 kernel/kexec_file.c           |  2 +-
 3 files changed, 2 insertions(+), 17 deletions(-)

diff --git a/arch/riscv/kernel/kexec_elf.c b/arch/riscv/kernel/kexec_elf.c
index 3e9a32acb8f2..ca5abbad59e5 100644
--- a/arch/riscv/kernel/kexec_elf.c
+++ b/arch/riscv/kernel/kexec_elf.c
@@ -91,7 +91,7 @@ static int elf_find_pbase(struct kimage *image, unsigned long kernel_len,
 	kbuf.memsz = ALIGN(kernel_len, PAGE_SIZE);
 	kbuf.cma = NULL;
 	kbuf.top_down = false;
-	ret = arch_kexec_locate_mem_hole(&kbuf);
+	ret = kexec_locate_mem_hole(&kbuf);
 	if (!ret) {
 		*old_pbase = lowest_paddr;
 		*new_pbase = kbuf.mem;
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 0af8ae4fdd08..e5f1cfc11fef 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -259,21 +259,6 @@ int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len);
 extern int kexec_add_buffer(struct kexec_buf *kbuf);
 int kexec_locate_mem_hole(struct kexec_buf *kbuf);
 
-#ifndef arch_kexec_locate_mem_hole
-/**
- * arch_kexec_locate_mem_hole - Find free memory to place the segments.
- * @kbuf:                       Parameters for the memory search.
- *
- * On success, kbuf->mem will have the start address of the memory region found.
- *
- * Return: 0 on success, negative errno on error.
- */
-static inline int arch_kexec_locate_mem_hole(struct kexec_buf *kbuf)
-{
-	return kexec_locate_mem_hole(kbuf);
-}
-#endif
-
 #ifndef arch_kexec_apply_relocations_add
 /*
  * arch_kexec_apply_relocations_add - apply relocations of type RELA
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 59fb9d71e9d8..9a981359addd 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -784,7 +784,7 @@ int kexec_add_buffer(struct kexec_buf *kbuf)
 	kbuf->cma = NULL;
 
 	/* Walk the RAM ranges and allocate a suitable range for the buffer */
-	ret = arch_kexec_locate_mem_hole(kbuf);
+	ret = kexec_locate_mem_hole(kbuf);
 	if (ret)
 		return ret;
 
-- 
2.55.0


WARNING: multiple messages have this Message-ID (diff)
From: Sourabh Jain <sourabhjain@linux.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Andrew Morton <akpm@linux-foundation.org>,
	Baoquan He <baoquan.he@linux.dev>,
	Mike Rapoport <rppt@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Pasha Tatashin <pasha.tatashin@soleen.com>,
	Paul Walmsley <pjw@kernel.org>,
	Pratyush Yadav <pratyush@kernel.org>,
	linux-riscv@lists.infradead.org, kexec@lists.infradead.org
Subject: [PATCH] kexec_file: remove unused arch_kexec_locate_mem_hole hook
Date: Thu, 27 Aug 2026 20:14:52 +0530	[thread overview]
Message-ID: <20260827144452.508328-1-sourabhjain@linux.ibm.com> (raw)

No architecture provides an implementation of
arch_kexec_locate_mem_hole(). Use kexec_locate_mem_hole() directly
and remove the unused fallback wrapper from the kexec header.

This simplifies the kexec memory allocation path without changing
its behavior.

Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Paul Walmsley <pjw@kernel.org>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: linux-riscv@lists.infradead.org
Cc: kexec@lists.infradead.org
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
---
 arch/riscv/kernel/kexec_elf.c |  2 +-
 include/linux/kexec.h         | 15 ---------------
 kernel/kexec_file.c           |  2 +-
 3 files changed, 2 insertions(+), 17 deletions(-)

diff --git a/arch/riscv/kernel/kexec_elf.c b/arch/riscv/kernel/kexec_elf.c
index 3e9a32acb8f2..ca5abbad59e5 100644
--- a/arch/riscv/kernel/kexec_elf.c
+++ b/arch/riscv/kernel/kexec_elf.c
@@ -91,7 +91,7 @@ static int elf_find_pbase(struct kimage *image, unsigned long kernel_len,
 	kbuf.memsz = ALIGN(kernel_len, PAGE_SIZE);
 	kbuf.cma = NULL;
 	kbuf.top_down = false;
-	ret = arch_kexec_locate_mem_hole(&kbuf);
+	ret = kexec_locate_mem_hole(&kbuf);
 	if (!ret) {
 		*old_pbase = lowest_paddr;
 		*new_pbase = kbuf.mem;
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 0af8ae4fdd08..e5f1cfc11fef 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -259,21 +259,6 @@ int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len);
 extern int kexec_add_buffer(struct kexec_buf *kbuf);
 int kexec_locate_mem_hole(struct kexec_buf *kbuf);
 
-#ifndef arch_kexec_locate_mem_hole
-/**
- * arch_kexec_locate_mem_hole - Find free memory to place the segments.
- * @kbuf:                       Parameters for the memory search.
- *
- * On success, kbuf->mem will have the start address of the memory region found.
- *
- * Return: 0 on success, negative errno on error.
- */
-static inline int arch_kexec_locate_mem_hole(struct kexec_buf *kbuf)
-{
-	return kexec_locate_mem_hole(kbuf);
-}
-#endif
-
 #ifndef arch_kexec_apply_relocations_add
 /*
  * arch_kexec_apply_relocations_add - apply relocations of type RELA
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 59fb9d71e9d8..9a981359addd 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -784,7 +784,7 @@ int kexec_add_buffer(struct kexec_buf *kbuf)
 	kbuf->cma = NULL;
 
 	/* Walk the RAM ranges and allocate a suitable range for the buffer */
-	ret = arch_kexec_locate_mem_hole(kbuf);
+	ret = kexec_locate_mem_hole(kbuf);
 	if (ret)
 		return ret;
 
-- 
2.55.0


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             reply	other threads:[~2026-08-27 14:45 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-27 14:44 Sourabh Jain [this message]
2026-08-27 14:44 ` [PATCH] kexec_file: remove unused arch_kexec_locate_mem_hole hook Sourabh Jain
2026-08-28  2:10 ` Baoquan He
2026-08-28  2:10   ` Baoquan He
2026-08-28  5:57   ` Sourabh Jain
2026-08-28  5:57     ` Sourabh Jain
2026-08-28 13:20 ` Mukesh Pilaniya
2026-08-28 13:20   ` Mukesh Pilaniya
2026-08-29  4:58   ` Sourabh Jain
2026-08-29  4:58     ` Sourabh Jain

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