lkml.org 
[lkml]   [2019]   [Aug]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] powerpc: Allow flush_(inval_)dcache_range to work across ranges >4GB
On Thu, Aug 15, 2019 at 02:55:42PM +1000, Alastair D'Silva wrote:
> From: Alastair D'Silva <alastair@d-silva.org>
>
> Heads Up: This patch cannot be submitted to Linus's tree, as the affected
> assembler functions have already been converted to C.
>
> When calling flush_(inval_)dcache_range with a size >4GB, we were masking
> off the upper 32 bits, so we would incorrectly flush a range smaller
> than intended.
>
> This patch replaces the 32 bit shifts with 64 bit ones, so that
> the full size is accounted for.
>
> Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
> ---
> arch/powerpc/kernel/misc_64.S | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>

\
 
 \ /
  Last update: 2019-08-15 09:20    [W:0.236 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site