On Wed, Oct 12, 2011 at 7:59 AM, Jeff Kirsher [off-list ref] wrote:

On 10/12/2011 05:12 AM, amit mehta wrote:

quoted

On Wed, Oct 12, 2011 at 4:46 PM, Jeff Kirsher [off-list ref] wrote:

quoted

On 10/12/2011 02:17 AM, amit mehta wrote:

quoted

On Wed, Oct 12, 2011 at 2:20 PM, rohan puri [off-list ref] wrote:

quoted

On Wed, Oct 12, 2011 at 2:14 PM, amit mehta [off-list ref] wrote:

quoted

How do i find the linux kernel version from which a certain
feature was first incorporated. For example , How do i find the
first kernel version which had support for
GRO (generic receive offload) ?

Thanks,
Amit

Hi Amit,

Kernel version is 2.6.29 refer http://lwn.net/Articles/358910/

Regards,
Rohan Puri

Thanks Rohan, But still there should be some information in a changelog
for each kernel release somewhere. Currently looking for such information
in Linus's tree(https://github.com/torvalds/linux/tree/),
but it seems like getting such kind of information is quite engaging.

- Amit

You can always use a LXR to find when a feature was first incorporated.
Here is a link to just one of the several LXR available:
http://lxr.free-electrons.com/

You mean to say browse the code, no changelog or something ?

-Amit

Well I was not thinking of browsing the code, because that would take a
long time. ?But I was thinking of an identifier search which is much
faster and you can cover several kernel versions in a lot less time than
it would take to read a changelog of every release looking for a
feature.

I have recently had to track down several additions and changes to the
kernel that broke my drivers.  Short of randomly googling to find the
answer Jeff is right, using one of the LXR sites seems to be just
about the only way to figure out where the change happened while also
keeping your sanity.

If there is a better way I would love to know.

Matt Schulte