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Re: [PATCH] [58/58] x86: remove support for the Rise CPU

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From: Alan Cox
Subject: Re: [PATCH] [58/58] x86: remove support for the Rise CPU
Date: Thursday, July 19, 2007 - 4:13 am

> - It's not only code, it also bloats everyone's kernel image.

Its a miniscule piece of code that is discarded on boot. Yes it might
make the image 100 bytes longer, but have you priced a 160GB disk
recently. I don't think 100 bytes of disk and 0 of memory really is worth
saving for any risk at all. Its not even worth the time to apply the
patch.


But you've no idea if this is true. Probably some of our other drivers
are bigger and have less users.

Alan
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Messages in current thread:
[PATCH] [0/58] First batch of x86 patches for .23, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [1/58] x86: Always flush pages in change_page_attr, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [2/58] x86_64: Tell gcc to only align stack to 8 bytes, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [3/58] x86_64: asm/ptrace.h needs linux/compiler.h, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [4/58] x86_64: Don't rely on a unique IO-APIC ID, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [5/58] x86_64: Report the pending irq if available ..., Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [6/58] x86_64: Use LOCAL_DISTANCE and REMOTE_DIST ..., Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [7/58] x86_64: various cleanups in NUMA scan node, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [8/58] x86_64: Use string instruction memcpy/memse ..., Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [9/58] x86_64: Always use builtin memcpy on gcc 4.3, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [10/58] i386: Move all simple string operations ou ..., Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [11/58] x86: Support __attribute__((__cold__)) in ..., Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [12/58] x86_64: Add vDSO for x86-64 with gettimeof ..., Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [13/58] x86: Separate checking of unsynchronized a ..., Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [14/58] x86_64: Add on_cpu_single, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [15/58] i386: Rewrite sched_clock, Andi Kleen, (Thu Jul 19, 2:54 am)
[PATCH] [16/58] x86_64: Use new shared sched_clock in x86- ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [17/58] i386: Add L3 cache support to AMD CPUID4 e ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [18/58] x86_64: remove extra extern declaring abou ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [19/58] x86_64: Don't use softirq save locks in sm ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [20/58] x86: Always probe the NMI watchdog, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [21/58] i386: Reserve the right performance counte ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [22/58] x86_64: hpet tsc calibration fix broken sm ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [23/58] i386: remove pit_interrupt_hook, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [24/58] x86_64: Untangle asm/hpet.h from asm/timex.h, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [25/58] x86_64: use generic cmos update, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [26/58] x86_64: Use generic xtime init, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [27/58] x86_64: Remove dead code and other janitor ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [28/58] x86_64: Fix APIC typo, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [29/58] x86_64: fiuxp pt_reqs leftovers, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [30/58] x86: share hpet.h with i386, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [31/58] x86_64: apic.c coding style janitor work, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [32/58] x86_64: time.c white space wreckage cleanup, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [33/58] x86_64: Avoid too many remote cpu referenc ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [34/58] x86_64: ia32entry adjustments, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [35/58] i386: allow debuggers to access the vsysca ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [36/58] x86_64: minor exception trace variables cl ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [37/58] x86_64: remove unused variable maxcpus, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [38/58] i386: smp-alt-once option is only useful w ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [39/58] i386: minor nx handling adjustment, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [40/58] i386: remapped_pgdat_init() static, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [41/58] i386: arch/i386/kernel/i8253.c should #inc ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [42/58] i386: timer_irq_works() static again, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [43/58] x86_64: Quicklist support for x86_64, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [44/58] x86_64: extract helper function from e820_ ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [45/58] x86_64: fake pxm-to-node mapping for fake numa, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [46/58] x86_64: fake apicid_to_node mapping for fa ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [47/58] i386: insert unclaimed MMCONFIG resources, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [48/58] x86_64: O_EXCL on /dev/mcelog, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [49/58] x86_64: support poll() on /dev/mcelog, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [50/58] x86_64: mcelog tolerant level cleanup, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [51/58] i386: fix machine rebooting, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [52/58] i386: fix section mismatch warnings in mtrr, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [53/58] x86: PM_TRACE support, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [54/58] x86: Make Alt-SysRq-p display the debug re ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [55/58] i386: add reference to the arguments, Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [56/58] x86: round_jiffies() for i386 and x86-64 n ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [57/58] x86_64: check remote IRR bit before migrat ..., Andi Kleen, (Thu Jul 19, 2:55 am)
[PATCH] [58/58] x86: remove support for the Rise CPU, Andi Kleen, (Thu Jul 19, 2:55 am)
Re: [PATCH] [21/58] i386: Reserve the right performance co ..., Björn, (Thu Jul 19, 3:21 am)
Re: [PATCH] [33/58] x86_64: Avoid too many remote cpu refe ..., Christoph Hellwig, (Thu Jul 19, 3:21 am)
Re: [PATCH] [5/58] x86_64: Report the pending irq if avail ..., Ingo Molnar, (Thu Jul 19, 3:23 am)
Re: [PATCH] [20/58] x86: Always probe the NMI watchdog, Björn, (Thu Jul 19, 3:24 am)
Re: [PATCH] [33/58] x86_64: Avoid too many remote cpu refe ..., Andi Kleen, (Thu Jul 19, 3:41 am)
Re: [PATCH] [20/58] x86: Always probe the NMI watchdog, Andi Kleen, (Thu Jul 19, 3:42 am)
Re: [PATCH] [21/58] i386: Reserve the right performance co ..., Andi Kleen, (Thu Jul 19, 3:45 am)
Re: [PATCH] [58/58] x86: remove support for the Rise CPU, Alan Cox, (Thu Jul 19, 3:45 am)
Re: [PATCH] [58/58] x86: remove support for the Rise CPU, Adrian Bunk, (Thu Jul 19, 3:48 am)
Re: [PATCH] [33/58] x86_64: Avoid too many remote cpu refe ..., Adrian Bunk, (Thu Jul 19, 3:55 am)
Re: [PATCH] [14/58] x86_64: Add on_cpu_single, Satyam Sharma, (Thu Jul 19, 4:09 am)
Re: [PATCH] [58/58] x86: remove support for the Rise CPU, Alan Cox, (Thu Jul 19, 4:13 am)
Re: [PATCH] [2/58] x86_64: Tell gcc to only align stack to ..., Serge Belyshev, (Thu Jul 19, 4:50 am)
Re: [PATCH] [58/58] x86: remove support for the Rise CPU, Andi Kleen, (Thu Jul 19, 5:03 am)
Re: [PATCH] [2/58] x86_64: Tell gcc to only align stack to ..., Andi Kleen, (Thu Jul 19, 5:06 am)
Re: [PATCH] [14/58] x86_64: Add on_cpu_single, Andi Kleen, (Thu Jul 19, 5:07 am)
Re: [PATCH] [19/58] x86_64: Don't use softirq save locks i ..., Satyam Sharma, (Thu Jul 19, 5:16 am)
Re: [PATCH] [19/58] x86_64: Don't use softirq save locks i ..., Andi Kleen, (Thu Jul 19, 5:19 am)
Re: [PATCH] [2/58] x86_64: Tell gcc to only align stack to ..., Chuck Ebbert, (Thu Jul 19, 7:42 am)
Re: [PATCH] [34/58] x86_64: ia32entry adjustments, Jeff Garzik, (Thu Jul 19, 7:46 am)
Re: [PATCH] [58/58] x86: remove support for the Rise CPU, Jeff Garzik, (Thu Jul 19, 7:56 am)
Re: [PATCH] [8/58] x86_64: Use string instruction memcpy/m ..., Jan Engelhardt, (Thu Jul 19, 9:43 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Daniel Walker, (Thu Jul 19, 9:51 am)
Re: [PATCH] [8/58] x86_64: Use string instruction memcpy/m ..., Yinghai Lu, (Thu Jul 19, 10:00 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Andi Kleen, (Thu Jul 19, 10:13 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Daniel Walker, (Thu Jul 19, 10:15 am)
Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node, Yinghai Lu, (Thu Jul 19, 10:15 am)
Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node, Andi Kleen, (Thu Jul 19, 10:21 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Andi Kleen, (Thu Jul 19, 10:22 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Daniel Walker, (Thu Jul 19, 10:31 am)
Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node, Yinghai Lu, (Thu Jul 19, 10:38 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Andi Kleen, (Thu Jul 19, 10:38 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Daniel Walker, (Thu Jul 19, 10:43 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Daniel Walker, (Thu Jul 19, 11:00 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Andi Kleen, (Thu Jul 19, 11:00 am)
Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node, Andi Kleen, (Thu Jul 19, 1:00 pm)
Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node, David Rientjes, (Thu Jul 19, 2:01 pm)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Mathieu Desnoyers, (Thu Jul 19, 8:11 pm)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Mathieu Desnoyers, (Thu Jul 19, 8:47 pm)
Re: [PATCH] [15/58] i386: Rewrite sched_clock (cmpxchg8b), Mathieu Desnoyers, (Thu Jul 19, 9:18 pm)
Re: [PATCH] [15/58] i386: Rewrite sched_clock (cmpxchg8b), Nick Piggin, (Thu Jul 19, 10:07 pm)
Re: [PATCH] [15/58] i386: Rewrite sched_clock (cmpxchg8b), Mathieu Desnoyers, (Thu Jul 19, 10:47 pm)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Andi Kleen, (Fri Jul 20, 1:27 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Mathieu Desnoyers, (Fri Jul 20, 7:12 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Mathieu Desnoyers, (Fri Jul 20, 7:39 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Andi Kleen, (Fri Jul 20, 8:14 am)
Re: [PATCH] [15/58] i386: Rewrite sched_clock, Mathieu Desnoyers, (Fri Jul 20, 8:22 am)
[PATCH] 80386 and 80486 cmpxchg64 and cmpxchg64_local fallback, Mathieu Desnoyers, (Fri Jul 20, 9:49 am)
Re: [patches] [PATCH] [17/58] i386: Add L3 cache support t ..., Andreas Herrmann, (Fri Jul 20, 10:00 am)
Re: [patches] [PATCH] [17/58] i386: Add L3 cache support t ..., Andreas Herrmann, (Fri Jul 20, 10:15 am)
Re: [PATCH] [9/58] x86_64: Always use builtin memcpy on gc ..., Oleg Verych, (Sat Jul 21, 4:16 pm)
Re: [PATCH] [9/58] x86_64: Always use builtin memcpy on gc ..., Andi Kleen, (Sat Jul 21, 4:27 pm)
Re: [PATCH] [9/58] x86_64: Always use builtin memcpy on gc ..., Denis Vlasenko, (Sat Jul 21, 5:29 pm)
Re: [patches] [PATCH] [1/58] x86: Always flush pages in ch ..., Jan Beulich, (Mon Aug 6, 3:15 am)
Re: [patches] [PATCH] [1/58] x86: Always flush pages in ch ..., Andi Kleen, (Mon Aug 6, 3:36 am)
Re: [PATCH] [34/58] x86_64: ia32entry adjustments, Jan Beulich, (Mon Aug 6, 3:43 am)
Re: [patches] [PATCH] [1/58] x86: Always flush pages in ch ..., Jan Beulich, (Mon Aug 6, 3:49 am)
Re: [PATCH] [12/58] x86_64: Add vDSO for x86-64 with getti ..., Daniel Walker, (Tue Aug 21, 9:25 am)
Re: [PATCH] [12/58] x86_64: Add vDSO for x86-64 with getti ..., Andrew Morton, (Tue Aug 21, 11:40 am)
Re: [PATCH] [12/58] x86_64: Add vDSO for x86-64 with getti ..., Andi Kleen, (Tue Aug 21, 11:45 am)