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Message-ID: <27040.1190170078@turing-police.cc.vt.edu>
Date: Tue, 18 Sep 2007 22:47:58 -0400
From: Valdis.Kletnieks@...edu
To: Denys Vlasenko <vda.linux@...glemail.com>
Cc: tapio.laxstrom@...ime.fi, linux-kernel@...r.kernel.org
Subject: Re: drivers/usb/misc/emi*.c have the biggest data objects in the whole tree
On Fri, 14 Sep 2007 11:35:34 BST, Denys Vlasenko said:
> Hi Tapio,
>
> You are the author of these files. Are you still maintaining them?
> If not, do you know who is the current maintainer?
> These two object files hold the biggest data objects in the whole Linux kernel
> after lockdep:
>
> text data bss dec hex filename
> 1258 160516 0 161774 277ee ./drivers/usb/misc/emi26.o
> 1504 209296 0 210800 33770 ./drivers/usb/misc/emi62.o
>
> Basically, these are big arrays of the following structures:
>
> typedef struct _INTEL_HEX_RECORD
> {
> __u32 length;
> __u32 address;
> __u32 type;
> __u8 data[MAX_INTEL_HEX_RECORD_LENGTH];
> } INTEL_HEX_RECORD;
>
> I suggest the following optimizations:
>
> Change structure to
I suggest moving those out of the kernel entirely and use the firmware loader
support to bring it in from userspace like all the *other* firmware blobs.
'INTEL_HEX_RECORD' just *screams* 'microcode' ;)
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