On Mon, Jan 04, 2016 at 03:25:58PM -0800, Andy Lutomirski wrote:
> On Mon, Jan 4, 2016 at 3:02 PM, Borislav Petkov wrote:
> > On Mon, Jan 04, 2016 at 02:29:09PM -0800, Andy Lutomirski wrote:
> >> Josh will argue with you if he sees that :)
> >
> > Except Josh doesn't need allyesconfigs. tinyconfig
On Mon, Jan 4, 2016 at 3:02 PM, Borislav Petkov wrote:
> On Mon, Jan 04, 2016 at 02:29:09PM -0800, Andy Lutomirski wrote:
>> Josh will argue with you if he sees that :)
>
> Except Josh doesn't need allyesconfigs. tinyconfig's __ex_table is 2K.
If we do the make-it-bigger approach, we get a really
On Mon, Jan 4, 2016 at 10:08 AM, Andy Lutomirski wrote:
> On Mon, Jan 4, 2016 at 9:26 AM, Tony Luck wrote:
>> On Mon, Jan 4, 2016 at 4:07 AM, Borislav Petkov wrote:
>>> Why not simply:
>>>
>>> .long (to) - . + (bias) ;
>>>
>>> and
>>>
>>> " .long (" #to ") - . + "(" #bias ") "\n
On Tue, Jan 05, 2016 at 12:02:46AM +0100, Borislav Petkov wrote:
> Except Josh doesn't need allyesconfigs. tinyconfig's __ex_table is 2K.
Besides I just saved him 1.5K:
https://lkml.kernel.org/r/1449481182-27541-1-git-send-email...@alien8.de
:-)
--
Regards/Gruss,
Boris.
ECO tip #101: Trim
On Mon, Jan 04, 2016 at 02:29:09PM -0800, Andy Lutomirski wrote:
> Josh will argue with you if he sees that :)
Except Josh doesn't need allyesconfigs. tinyconfig's __ex_table is 2K.
> We could maybe come up with a way to compress the table and get that
> space and more back, but maybe that should
On Mon, Jan 4, 2016 at 1:02 PM, Borislav Petkov wrote:
> On Mon, Jan 04, 2016 at 10:08:43AM -0800, Andy Lutomirski wrote:
>> All of that's correct, including the part where it's confusing. The
>> comments aren't the best.
>>
>> How about adding a comment like:
>>
>> - begin comment -
>>
>
On Mon, Jan 04, 2016 at 10:08:43AM -0800, Andy Lutomirski wrote:
> All of that's correct, including the part where it's confusing. The
> comments aren't the best.
>
> How about adding a comment like:
>
> - begin comment -
>
> The offset to the fixup is signed, and we're trying to use th
On Mon, Jan 4, 2016 at 10:59 AM, Tony Luck wrote:
>> - begin comment -
>>
>> The offset to the fixup is signed, and we're trying to use the high
>> bits for a different purpose. In C, we could just do:
>>
>> u32 class_and_offset = ((target - here) & 0x3fff) | class;
>>
>> Then, to dec
> - begin comment -
>
> The offset to the fixup is signed, and we're trying to use the high
> bits for a different purpose. In C, we could just do:
>
> u32 class_and_offset = ((target - here) & 0x3fff) | class;
>
> Then, to decode it, we'd mask off the class and sign-extend to recover
On Mon, Jan 4, 2016 at 9:26 AM, Tony Luck wrote:
> On Mon, Jan 4, 2016 at 4:07 AM, Borislav Petkov wrote:
>>> + * (target - here) + (class) + 0x2000
>>
>> I still don't understand that bit 29 thing.
>>
>> Because the offset is negative?
>
> I think so. The .fixup section is placed in the end
On Mon, Jan 4, 2016 at 4:07 AM, Borislav Petkov wrote:
>> + * (target - here) + (class) + 0x2000
>
> I still don't understand that bit 29 thing.
>
> Because the offset is negative?
I think so. The .fixup section is placed in the end of .text, and the ex_table
itself is pretty much right afte
On Wed, Dec 30, 2015 at 09:59:29AM -0800, Andy Lutomirski wrote:
> This adds two bits of fixup class information to a fixup entry,
> generalizing the uaccess_err hack currently in place.
>
> Forward-ported-from-3.9-by: Tony Luck
> Signed-off-by: Andy Lutomirski
> ---
> arch/x86/include/asm/asm.
> Big OOPs ... this is "From:" me ... not Andy!
But in any case it's missing your SOB line.
If Andy is still the primary author (much of his original patch survived, you
resolved conflicts or minor changes) then you can send this as:
From: Tony Luck
Subject: [PATCH v
On Wed, Dec 30, 2015 at 9:59 AM, Andy Lutomirski wrote:
> This adds two bits of fixup class information to a fixup entry,
> generalizing the uaccess_err hack currently in place.
>
> Forward-ported-from-3.9-by: Tony Luck
> Signed-off-by: Andy Lutomirski
Crivens! I messed up when "git cherrypick
This adds two bits of fixup class information to a fixup entry,
generalizing the uaccess_err hack currently in place.
Forward-ported-from-3.9-by: Tony Luck
Signed-off-by: Andy Lutomirski
---
arch/x86/include/asm/asm.h | 70 ++
arch/x86/mm/extable.c
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