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From: Jisheng Zhang <jszhang3@mail.ustc.edu.cn>
To: "Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Andrey Ryabinin" <ryabinin.a.a@gmail.com>,
	"Alexander Potapenko" <glider@google.com>,
	"Andrey Konovalov" <andreyknvl@gmail.com>,
	"Dmitry Vyukov" <dvyukov@google.com>,
	" Björn Töpel" <bjorn@kernel.org>,
	"Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Andrii Nakryiko" <andrii@kernel.org>,
	"Martin KaFai Lau" <kafai@fb.com>,
	"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
	"John Fastabend" <john.fastabend@gmail.com>,
	"KP Singh" <kpsingh@kernel.org>,
	"Luke Nelson" <luke.r.nels@gmail.com>,
	"Xi Wang" <xi.wang@gmail.com>, "Anup Patel" <anup@brainfault.org>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 02/10] riscv: add __init section marker to some functions
Date: Tue, 13 Apr 2021 00:12:28 +0800	[thread overview]
Message-ID: <20210413001228.663f9bc3@xhacker> (raw)
In-Reply-To: <20210413001110.7209bae6@xhacker>

From: Jisheng Zhang <jszhang@kernel.org>

They are not needed after booting, so mark them as __init to move them
to the __init section.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 arch/riscv/kernel/cpufeature.c | 2 +-
 arch/riscv/kernel/traps.c      | 2 +-
 arch/riscv/mm/init.c           | 4 ++--
 arch/riscv/mm/kasan_init.c     | 6 +++---
 arch/riscv/mm/ptdump.c         | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index ac202f44a670..e4741e1f0add 100644
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -59,7 +59,7 @@ bool __riscv_isa_extension_available(const unsigned long *isa_bitmap, int bit)
 }
 EXPORT_SYMBOL_GPL(__riscv_isa_extension_available);
 
-void riscv_fill_hwcap(void)
+void __init riscv_fill_hwcap(void)
 {
 	struct device_node *node;
 	const char *isa;
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 0879b5df11b9..041f4b44262e 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -196,6 +196,6 @@ int is_valid_bugaddr(unsigned long pc)
 #endif /* CONFIG_GENERIC_BUG */
 
 /* stvec & scratch is already set from head.S */
-void trap_init(void)
+void __init trap_init(void)
 {
 }
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index dbeaa4144e4d..ecd485662b07 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -70,7 +70,7 @@ static inline void print_mlm(char *name, unsigned long b, unsigned long t)
 		  (((t) - (b)) >> 20));
 }
 
-static void print_vm_layout(void)
+static void __init print_vm_layout(void)
 {
 	pr_notice("Virtual kernel memory layout:\n");
 	print_mlk("fixmap", (unsigned long)FIXADDR_START,
@@ -553,7 +553,7 @@ static inline void setup_vm_final(void)
 #endif /* CONFIG_MMU */
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
-void protect_kernel_text_data(void)
+void __init protect_kernel_text_data(void)
 {
 	unsigned long text_start = (unsigned long)_start;
 	unsigned long init_text_start = (unsigned long)__init_text_begin;
diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c
index ec0029097251..e459290d2629 100644
--- a/arch/riscv/mm/kasan_init.c
+++ b/arch/riscv/mm/kasan_init.c
@@ -48,7 +48,7 @@ asmlinkage void __init kasan_early_init(void)
 	local_flush_tlb_all();
 }
 
-static void kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long end)
+static void __init kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long end)
 {
 	phys_addr_t phys_addr;
 	pte_t *ptep, *base_pte;
@@ -70,7 +70,7 @@ static void kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long en
 	set_pmd(pmd, pfn_pmd(PFN_DOWN(__pa(base_pte)), PAGE_TABLE));
 }
 
-static void kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long end)
+static void __init kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long end)
 {
 	phys_addr_t phys_addr;
 	pmd_t *pmdp, *base_pmd;
@@ -105,7 +105,7 @@ static void kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long en
 	set_pgd(pgd, pfn_pgd(PFN_DOWN(__pa(base_pmd)), PAGE_TABLE));
 }
 
-static void kasan_populate_pgd(unsigned long vaddr, unsigned long end)
+static void __init kasan_populate_pgd(unsigned long vaddr, unsigned long end)
 {
 	phys_addr_t phys_addr;
 	pgd_t *pgdp = pgd_offset_k(vaddr);
diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c
index ace74dec7492..3b7b6e4d025e 100644
--- a/arch/riscv/mm/ptdump.c
+++ b/arch/riscv/mm/ptdump.c
@@ -331,7 +331,7 @@ static int ptdump_show(struct seq_file *m, void *v)
 
 DEFINE_SHOW_ATTRIBUTE(ptdump);
 
-static int ptdump_init(void)
+static int __init ptdump_init(void)
 {
 	unsigned int i, j;
 
-- 
2.31.0



_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

WARNING: multiple messages have this Message-ID (diff)
From: Jisheng Zhang <jszhang3@mail.ustc.edu.cn>
To: "Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Andrey Ryabinin" <ryabinin.a.a@gmail.com>,
	"Alexander Potapenko" <glider@google.com>,
	"Andrey Konovalov" <andreyknvl@gmail.com>,
	"Dmitry Vyukov" <dvyukov@google.com>,
	" Björn Töpel" <bjorn@kernel.org>,
	"Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Andrii Nakryiko" <andrii@kernel.org>,
	"Martin KaFai Lau" <kafai@fb.com>,
	"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
	"John Fastabend" <john.fastabend@gmail.com>,
	"KP Singh" <kpsingh@kernel.org>,
	"Luke Nelson" <luke.r.nels@gmail.com>,
	"Xi Wang" <xi.wang@gmail.com>, "Anup Patel" <anup@brainfault.org>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 02/10] riscv: add __init section marker to some functions
Date: Tue, 13 Apr 2021 00:12:28 +0800	[thread overview]
Message-ID: <20210413001228.663f9bc3@xhacker> (raw)
In-Reply-To: <20210413001110.7209bae6@xhacker>

From: Jisheng Zhang <jszhang@kernel.org>

They are not needed after booting, so mark them as __init to move them
to the __init section.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 arch/riscv/kernel/cpufeature.c | 2 +-
 arch/riscv/kernel/traps.c      | 2 +-
 arch/riscv/mm/init.c           | 4 ++--
 arch/riscv/mm/kasan_init.c     | 6 +++---
 arch/riscv/mm/ptdump.c         | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index ac202f44a670..e4741e1f0add 100644
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -59,7 +59,7 @@ bool __riscv_isa_extension_available(const unsigned long *isa_bitmap, int bit)
 }
 EXPORT_SYMBOL_GPL(__riscv_isa_extension_available);
 
-void riscv_fill_hwcap(void)
+void __init riscv_fill_hwcap(void)
 {
 	struct device_node *node;
 	const char *isa;
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 0879b5df11b9..041f4b44262e 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -196,6 +196,6 @@ int is_valid_bugaddr(unsigned long pc)
 #endif /* CONFIG_GENERIC_BUG */
 
 /* stvec & scratch is already set from head.S */
-void trap_init(void)
+void __init trap_init(void)
 {
 }
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index dbeaa4144e4d..ecd485662b07 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -70,7 +70,7 @@ static inline void print_mlm(char *name, unsigned long b, unsigned long t)
 		  (((t) - (b)) >> 20));
 }
 
-static void print_vm_layout(void)
+static void __init print_vm_layout(void)
 {
 	pr_notice("Virtual kernel memory layout:\n");
 	print_mlk("fixmap", (unsigned long)FIXADDR_START,
@@ -553,7 +553,7 @@ static inline void setup_vm_final(void)
 #endif /* CONFIG_MMU */
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
-void protect_kernel_text_data(void)
+void __init protect_kernel_text_data(void)
 {
 	unsigned long text_start = (unsigned long)_start;
 	unsigned long init_text_start = (unsigned long)__init_text_begin;
diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c
index ec0029097251..e459290d2629 100644
--- a/arch/riscv/mm/kasan_init.c
+++ b/arch/riscv/mm/kasan_init.c
@@ -48,7 +48,7 @@ asmlinkage void __init kasan_early_init(void)
 	local_flush_tlb_all();
 }
 
-static void kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long end)
+static void __init kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long end)
 {
 	phys_addr_t phys_addr;
 	pte_t *ptep, *base_pte;
@@ -70,7 +70,7 @@ static void kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long en
 	set_pmd(pmd, pfn_pmd(PFN_DOWN(__pa(base_pte)), PAGE_TABLE));
 }
 
-static void kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long end)
+static void __init kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long end)
 {
 	phys_addr_t phys_addr;
 	pmd_t *pmdp, *base_pmd;
@@ -105,7 +105,7 @@ static void kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long en
 	set_pgd(pgd, pfn_pgd(PFN_DOWN(__pa(base_pmd)), PAGE_TABLE));
 }
 
-static void kasan_populate_pgd(unsigned long vaddr, unsigned long end)
+static void __init kasan_populate_pgd(unsigned long vaddr, unsigned long end)
 {
 	phys_addr_t phys_addr;
 	pgd_t *pgdp = pgd_offset_k(vaddr);
diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c
index ace74dec7492..3b7b6e4d025e 100644
--- a/arch/riscv/mm/ptdump.c
+++ b/arch/riscv/mm/ptdump.c
@@ -331,7 +331,7 @@ static int ptdump_show(struct seq_file *m, void *v)
 
 DEFINE_SHOW_ATTRIBUTE(ptdump);
 
-static int ptdump_init(void)
+static int __init ptdump_init(void)
 {
 	unsigned int i, j;
 
-- 
2.31.0



  parent reply	other threads:[~2021-04-12 16:17 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-12 16:11 [PATCH v3 00/10] riscv: improve self-protection Jisheng Zhang
2021-04-12 16:11 ` Jisheng Zhang
2021-04-12 16:11 ` [PATCH v3 01/10] riscv: mm: Remove setup_zero_page() Jisheng Zhang
2021-04-12 16:11   ` Jisheng Zhang
2021-04-13  3:49   ` Anup Patel
2021-04-13  3:49     ` Anup Patel
2021-04-12 16:12 ` Jisheng Zhang [this message]
2021-04-12 16:12   ` [PATCH v3 02/10] riscv: add __init section marker to some functions Jisheng Zhang
2021-04-13  3:51   ` Anup Patel
2021-04-13  3:51     ` Anup Patel
2021-04-12 16:12 ` [PATCH v3 03/10] riscv: Mark some global variables __ro_after_init Jisheng Zhang
2021-04-12 16:12   ` Jisheng Zhang
2021-04-12 16:13 ` [PATCH v3 04/10] riscv: Constify sys_call_table Jisheng Zhang
2021-04-12 16:13   ` Jisheng Zhang
2021-04-12 16:17 ` [PATCH v3 05/10] riscv: Constify sbi_ipi_ops Jisheng Zhang
2021-04-12 16:17   ` Jisheng Zhang
2021-04-12 16:17 ` [PATCH v3 06/10] riscv: kprobes: Implement alloc_insn_page() Jisheng Zhang
2021-04-12 16:17   ` Jisheng Zhang
2021-04-12 16:18 ` [PATCH v3 07/10] riscv: bpf: Write protect JIT code Jisheng Zhang
2021-04-12 16:18   ` Jisheng Zhang
2021-04-12 16:18 ` [PATCH v3 08/10] riscv: bpf: Avoid breaking W^X on RV64 Jisheng Zhang
2021-04-12 16:18   ` Jisheng Zhang
2021-04-12 16:19 ` [PATCH v3 09/10] riscv: module: Create module allocations without exec permissions Jisheng Zhang
2021-04-12 16:19   ` Jisheng Zhang
2021-04-12 16:19 ` [PATCH v3 10/10] riscv: Set ARCH_HAS_STRICT_MODULE_RWX if MMU Jisheng Zhang
2021-04-12 16:19   ` Jisheng Zhang
2021-04-13  3:52 ` [PATCH v3 00/10] riscv: improve self-protection Anup Patel
2021-04-13  3:52   ` Anup Patel

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