On 2021-09-20 14:38, Greg KH wrote:
On Mon, Sep 20, 2021 at 01:45:31PM +0530, Jeya R wrote:
The buffer list is sorted and this is not being
considered while calculating packet size. This
would lead to improper copy length calculation
for non-dmaheap buffers which would eventually
cause sending improper buffers to DSP.
You do have the full 72 columns to use :)
Thanks, will update the commit message considering this.
Signed-off-by: Jeya R <jeyr@xxxxxxxxxxxxxx>
---
drivers/misc/fastrpc.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
What commit does this fix?
thanks,
greg k-h
Payload calculation function was modified to handle buffer overlapping
calculation in this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/misc/fastrpc.c?h=v5.15-rc2&id=25e8dfb83cda0a123bb1e091d6c3599cde050d76
Here during buffer overlap calculation, the buffer list is getting
sorted. This needs to be considered during the calculation of payload
size also by using unsorted buffer index "raix".
