linux-kernel - Re: [patch 19/26] x64, x2apic/intr-remap: introcude self IPI to genapic routines

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 10 Jul 2008 19:29:06 -0700
From:	Mike Travis <travis@....com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Suresh Siddha <suresh.b.siddha@...el.com>, mingo@...e.hu,
	hpa@...or.com, tglx@...utronix.de, akpm@...ux-foundation.org,
	arjan@...ux.intel.com, andi@...stfloor.org,
	jbarnes@...tuousgeek.org, steiner@....com,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 19/26] x64, x2apic/intr-remap: introcude self IPI to genapic
 routines

Eric W. Biederman wrote:
>> Index: tree-x86/include/asm-x86/hw_irq.h
>> ===================================================================
>> --- tree-x86.orig/include/asm-x86/hw_irq.h 2008-07-10 09:51:45.000000000 -0700
>> +++ tree-x86/include/asm-x86/hw_irq.h	2008-07-10 09:52:24.000000000 -0700
>> @@ -73,7 +73,9 @@
>>  #endif
>>  
>>  /* IPI functions */
>> +#ifdef CONFIG_X86_32
>>  extern void send_IPI_self(int vector);
>> +#endif
>>  extern void send_IPI(int dest, int vector);
> 
> Cute undoing unification.
> 
> Eric

On a similar subject I would really like to change the send_IPI_mask to pass a
pointer to the cpumask_t arg:

        void (*send_IPI_mask)(cpumask_t mask, int vector);


This bloats the stack by 512 bytes and seemingly is called by some fairly
nested routines.  Any opinions?

Thanks,
Mike
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/