linux-kernel - Re: [PATCH v4 10/12] riscv: mm: Make asid_bits a local variable

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Message-ID: <8341e264-53be-4821-ad9a-145e154aeec3@sifive.com>
Date: Thu, 4 Jan 2024 09:49:17 -0600
From: Samuel Holland <samuel.holland@...ive.com>
To: Jisheng Zhang <jszhang@...nel.org>
Cc: Palmer Dabbelt <palmer@...belt.com>, linux-riscv@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 Alexandre Ghiti <alexghiti@...osinc.com>
Subject: Re: [PATCH v4 10/12] riscv: mm: Make asid_bits a local variable

On 2024-01-03 9:00 AM, Jisheng Zhang wrote:
> On Tue, Jan 02, 2024 at 02:00:47PM -0800, Samuel Holland wrote:
>> This variable is only used inside asids_init().
> 
> This is due to patch9, so can be folded into patch9.

I'm not sure what you mean here. Patch 9 does not touch any references to the
asid_bits variable, though it does touch adjacent lines.

>>
>> Signed-off-by: Samuel Holland <samuel.holland@...ive.com>
>> ---
>>
>> (no changes since v1)
>>
>>  arch/riscv/mm/context.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/arch/riscv/mm/context.c b/arch/riscv/mm/context.c
>> index b5170ac1b742..43a8bc2d5af4 100644
>> --- a/arch/riscv/mm/context.c
>> +++ b/arch/riscv/mm/context.c
>> @@ -20,7 +20,6 @@
>>  
>>  DEFINE_STATIC_KEY_FALSE(use_asid_allocator);
>>  
>> -static unsigned long asid_bits;
>>  static unsigned long num_asids;
>>  
>>  static atomic_long_t current_version;
>> @@ -226,7 +225,7 @@ static inline void set_mm(struct mm_struct *prev,
>>  
>>  static int __init asids_init(void)
>>  {
>> -	unsigned long old;
>> +	unsigned long asid_bits, old;
>>  
>>  	/* Figure-out number of ASID bits in HW */
>>  	old = csr_read(CSR_SATP);
>> -- 
>> 2.42.0
>>
>>
>> _______________________________________________
>> linux-riscv mailing list
>> linux-riscv@...ts.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-riscv

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