[PATCH 03/15] arm: convert to setup_initial_init_mm()

[PATCH 03/15] arm: convert to setup_initial_init_mm()

[Kefeng Wang]

Use setup_initial_init_mm() helper to simplify code.

Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 arch/arm/kernel/setup.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 1a5edf562e85..81de1bf07ba6 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -1114,10 +1114,7 @@ void __init setup_arch(char **cmdline_p)
 	if (mdesc->reboot_mode != REBOOT_HARD)
 		reboot_mode = mdesc->reboot_mode;
 
-	init_mm.start_code = (unsigned long) _text;
-	init_mm.end_code   = (unsigned long) _etext;
-	init_mm.end_data   = (unsigned long) _edata;
-	init_mm.brk	   = (unsigned long) _end;
+	setup_initial_init_mm(_text, _etext, _edata, _end);
 
 	/* populate cmd_line too for later use, preserving boot_command_line */
 	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-- 
2.26.2


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Re: [PATCH 03/15] arm: convert to setup_initial_init_mm()

[Russell King (Oracle)]

On Sat, May 29, 2021 at 06:54:52PM +0800, Kefeng Wang wrote:
> Use setup_initial_init_mm() helper to simplify code.
> 
> Cc: Russell King <linux@armlinux.org.uk>
> Cc: linux-arm-kernel@lists.infradead.org
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>

Obviously, without having visibility of the contents of
setup_initial_init_mm(), it's impossible to say whether this change is
correct or not, so I won't be providing any acks/reviewed-bys for it.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

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Re: [PATCH 03/15] arm: convert to setup_initial_init_mm()

[Kefeng Wang]

On 2021/5/29 20:18, Russell King (Oracle) wrote:
> On Sat, May 29, 2021 at 06:54:52PM +0800, Kefeng Wang wrote:
>> Use setup_initial_init_mm() helper to simplify code.
>>
>> Cc: Russell King <linux@armlinux.org.uk>
>> Cc: linux-arm-kernel@lists.infradead.org
>> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> Obviously, without having visibility of the contents of
> setup_initial_init_mm(), it's impossible to say whether this change is
> correct or not, so I won't be providing any acks/reviewed-bys for it.

I realized that patch with introducing the setup_initial_init_mm helper  
should

be send to  each architectures,  will pay attention next times.

Here is the helper https://lkml.org/lkml/2021/5/29/84


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[PATCH 04/15] arm64: convert to setup_initial_init_mm()

[Kefeng Wang]

Use setup_initial_init_mm() helper to simplify code.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 arch/arm64/kernel/setup.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index ac8222443ea8..08b0308b7f3b 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -293,10 +293,7 @@ u64 cpu_logical_map(unsigned int cpu)
 
 void __init __no_sanitize_address setup_arch(char **cmdline_p)
 {
-	init_mm.start_code = (unsigned long) _stext;
-	init_mm.end_code   = (unsigned long) _etext;
-	init_mm.end_data   = (unsigned long) _edata;
-	init_mm.brk	   = (unsigned long) _end;
+	setup_initial_init_mm(_stext, _etext, _edata, _end);
 
 	*cmdline_p = boot_command_line;
 
-- 
2.26.2


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