[LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Li Wang]

The change addresses compilation errors encountered in the tcindex01.c
test when compiled against kernel-6.7 and above.

  tcindex01.c:67:4: error: ‘TCA_TCINDEX_MASK’ undeclared here (not in a function);
     did you mean ‘TCA_CODEL_MAX’?
     {TCA_TCINDEX_MASK, &mask, sizeof(mask), NULL},
      ^~~~~~~~~~~~~~~~
      TCA_CODEL_MAX
  tcindex01.c:68:4: error: ‘TCA_TCINDEX_SHIFT’ undeclared here (not in a function);
     did you mean ‘TCA_FLOW_RSHIFT’?
     {TCA_TCINDEX_SHIFT, &shift, sizeof(shift), NULL},
      ^~~~~~~~~~~~~~~~~
      TCA_FLOW_RSHIFT
  CC testcases/cve/cve-2016-7117
  CC utils/sctp/func_tests/test_getname_v6.o
  tcindex01.c:69:4: error: ‘TCA_TCINDEX_CLASSID’ undeclared here (not in a function);
     did you mean ‘TCA_FLOWER_CLASSID’?
     {TCA_TCINDEX_CLASSID, &clsid, sizeof(clsid), NULL},
      ^~~~~~~~~~~~~~~~~~~
      TCA_FLOWER_CLASSID

The errors were due to the removal of certain TCA_TCINDEX_ constants
from the kernel's user API (uapi), as indicated by the kernel commit.

  commit 82b2545ed9a (net/sched: Remove uapi support for tcindex classifier)

The reason why I didn't add this into LTP library is that the defines
have been dropped we just need to satisfy this one case.
---

Notes:
    We need to merge this patch before the new release.

 testcases/cve/tcindex01.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/testcases/cve/tcindex01.c b/testcases/cve/tcindex01.c
index b4f2bb01a..70e5639f1 100644
--- a/testcases/cve/tcindex01.c
+++ b/testcases/cve/tcindex01.c
@@ -32,6 +32,23 @@
 
 #define DEVNAME "ltp_dummy1"
 
+#ifndef TCA_TCINDEX_MAX
+enum {
+       TCA_TCINDEX_UNSPEC,
+       TCA_TCINDEX_HASH,
+       TCA_TCINDEX_MASK,
+       TCA_TCINDEX_SHIFT,
+       TCA_TCINDEX_FALL_THROUGH,
+       TCA_TCINDEX_CLASSID,
+       TCA_TCINDEX_POLICE,
+       TCA_TCINDEX_ACT,
+       __TCA_TCINDEX_MAX
+};
+
+#define TCA_TCINDEX_MAX     (__TCA_TCINDEX_MAX - 1)
+#endif
+
+
 static const uint32_t qd_handle = TC_H_MAKE(1 << 16, 0);
 static const uint32_t clsid = TC_H_MAKE(1 << 16, 1);
 static const uint32_t shift = 10;
-- 
2.40.1


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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Petr Vorel]

Hi Li,,

> The change addresses compilation errors encountered in the tcindex01.c
> test when compiled against kernel-6.7 and above.

"against kernel-6.7". But 82b2545ed9a will be released in 6.8, right?

>   tcindex01.c:67:4: error: ‘TCA_TCINDEX_MASK’ undeclared here (not in a function);
>      did you mean ‘TCA_CODEL_MAX’?
>      {TCA_TCINDEX_MASK, &mask, sizeof(mask), NULL},
>       ^~~~~~~~~~~~~~~~
>       TCA_CODEL_MAX
>   tcindex01.c:68:4: error: ‘TCA_TCINDEX_SHIFT’ undeclared here (not in a function);
>      did you mean ‘TCA_FLOW_RSHIFT’?
>      {TCA_TCINDEX_SHIFT, &shift, sizeof(shift), NULL},
>       ^~~~~~~~~~~~~~~~~
>       TCA_FLOW_RSHIFT
>   CC testcases/cve/cve-2016-7117
>   CC utils/sctp/func_tests/test_getname_v6.o
>   tcindex01.c:69:4: error: ‘TCA_TCINDEX_CLASSID’ undeclared here (not in a function);
>      did you mean ‘TCA_FLOWER_CLASSID’?
>      {TCA_TCINDEX_CLASSID, &clsid, sizeof(clsid), NULL},
>       ^~~~~~~~~~~~~~~~~~~
>       TCA_FLOWER_CLASSID

> The errors were due to the removal of certain TCA_TCINDEX_ constants
> from the kernel's user API (uapi), as indicated by the kernel commit.

>   commit 82b2545ed9a (net/sched: Remove uapi support for tcindex classifier)

> The reason why I didn't add this into LTP library is that the defines
> have been dropped we just need to satisfy this one case.

+1 for adding enum here instead of writing m4 autotools check.

> Notes:
>     We need to merge this patch before the new release.
+1

Reviewed-by: Petr Vorel <pvorel@suse.cz>

Kind regards,
Petr

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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Li Wang]

On Tue, Jan 16, 2024 at 8:12 PM Petr Vorel <pvorel@suse.cz> wrote:

> Hi Li,,
>
> > The change addresses compilation errors encountered in the tcindex01.c
> > test when compiled against kernel-6.7 and above.
>
> "against kernel-6.7". But 82b2545ed9a will be released in 6.8, right?
>

It's already contained in the kernel-6.7 release.

Patch merged, thanks!


-- 
Regards,
Li Wang

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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Petr Vorel]

> On Tue, Jan 16, 2024 at 8:12 PM Petr Vorel <pvorel@suse.cz> wrote:

> > Hi Li,,

> > > The change addresses compilation errors encountered in the tcindex01.c
> > > test when compiled against kernel-6.7 and above.

> > "against kernel-6.7". But 82b2545ed9a will be released in 6.8, right?


> It's already contained in the kernel-6.7 release.

Well, it's not that important (and was already merged anyway), but just for
clarity:

on updated kernel tree (with fetched tags):
$ git tag --contains 82b2545ed9a
next-20240104
next-20240105
next-20240109
next-20240110
next-20240112

Also, LTP tree without this patch compiles on Tumbleweed with 6.7 kernel
headers.

gitk shows:
$ gitk -1 82b2545ed9a
Follows: v6.7-rc6
Precedes: next-20240104, next-20240105, next-20240109, next-20240110, next-20240112
=> IMHO netdev merge window started at v6.7-rc6, but it's window for v6.8-rc1.

> Patch merged, thanks!

Thanks for spotting this early enough!

Kind regards,
Petr

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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Martin Doucha]

Hi,
thanks for the fix. I agree that this doesn't need to go into LAPI 
headers since we probably won't add another test for tcindex.

Reviewed-by: Martin Doucha <mdoucha@suse.cz>

On 16. 01. 24 4:17, Li Wang wrote:
> The change addresses compilation errors encountered in the tcindex01.c
> test when compiled against kernel-6.7 and above.
> 
>    tcindex01.c:67:4: error: ‘TCA_TCINDEX_MASK’ undeclared here (not in a function);
>       did you mean ‘TCA_CODEL_MAX’?
>       {TCA_TCINDEX_MASK, &mask, sizeof(mask), NULL},
>        ^~~~~~~~~~~~~~~~
>        TCA_CODEL_MAX
>    tcindex01.c:68:4: error: ‘TCA_TCINDEX_SHIFT’ undeclared here (not in a function);
>       did you mean ‘TCA_FLOW_RSHIFT’?
>       {TCA_TCINDEX_SHIFT, &shift, sizeof(shift), NULL},
>        ^~~~~~~~~~~~~~~~~
>        TCA_FLOW_RSHIFT
>    CC testcases/cve/cve-2016-7117
>    CC utils/sctp/func_tests/test_getname_v6.o
>    tcindex01.c:69:4: error: ‘TCA_TCINDEX_CLASSID’ undeclared here (not in a function);
>       did you mean ‘TCA_FLOWER_CLASSID’?
>       {TCA_TCINDEX_CLASSID, &clsid, sizeof(clsid), NULL},
>        ^~~~~~~~~~~~~~~~~~~
>        TCA_FLOWER_CLASSID
> 
> The errors were due to the removal of certain TCA_TCINDEX_ constants
> from the kernel's user API (uapi), as indicated by the kernel commit.
> 
>    commit 82b2545ed9a (net/sched: Remove uapi support for tcindex classifier)
> 
> The reason why I didn't add this into LTP library is that the defines
> have been dropped we just need to satisfy this one case.
> ---
> 
> Notes:
>      We need to merge this patch before the new release.
> 
>   testcases/cve/tcindex01.c | 17 +++++++++++++++++
>   1 file changed, 17 insertions(+)
> 
> diff --git a/testcases/cve/tcindex01.c b/testcases/cve/tcindex01.c
> index b4f2bb01a..70e5639f1 100644
> --- a/testcases/cve/tcindex01.c
> +++ b/testcases/cve/tcindex01.c
> @@ -32,6 +32,23 @@
>   
>   #define DEVNAME "ltp_dummy1"
>   
> +#ifndef TCA_TCINDEX_MAX
> +enum {
> +       TCA_TCINDEX_UNSPEC,
> +       TCA_TCINDEX_HASH,
> +       TCA_TCINDEX_MASK,
> +       TCA_TCINDEX_SHIFT,
> +       TCA_TCINDEX_FALL_THROUGH,
> +       TCA_TCINDEX_CLASSID,
> +       TCA_TCINDEX_POLICE,
> +       TCA_TCINDEX_ACT,
> +       __TCA_TCINDEX_MAX
> +};
> +
> +#define TCA_TCINDEX_MAX     (__TCA_TCINDEX_MAX - 1)
> +#endif
> +
> +
>   static const uint32_t qd_handle = TC_H_MAKE(1 << 16, 0);
>   static const uint32_t clsid = TC_H_MAKE(1 << 16, 1);
>   static const uint32_t shift = 10;

-- 
Martin Doucha   mdoucha@suse.cz
SW Quality Engineer
SUSE LINUX, s.r.o.
CORSO IIa
Krizikova 148/34
186 00 Prague 8
Czech Republic


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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Petr Vorel]

Hi Li, Martin,

thanks for your review, Martin!

> Hi,
> thanks for the fix. I agree that this doesn't need to go into LAPI headers
> since we probably won't add another test for tcindex.

And if yes, we would simply move it to lapi.
Li, please go ahead and merge.

Kind regards,
Petr

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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Jamal Hadi Salim]

On Mon, Jan 15, 2024 at 10:17 PM Li Wang <liwang@redhat.com> wrote:
>
> The change addresses compilation errors encountered in the tcindex01.c
> test when compiled against kernel-6.7 and above.
>
>   tcindex01.c:67:4: error: ‘TCA_TCINDEX_MASK’ undeclared here (not in a function);
>      did you mean ‘TCA_CODEL_MAX’?
>      {TCA_TCINDEX_MASK, &mask, sizeof(mask), NULL},
>       ^~~~~~~~~~~~~~~~
>       TCA_CODEL_MAX
>   tcindex01.c:68:4: error: ‘TCA_TCINDEX_SHIFT’ undeclared here (not in a function);
>      did you mean ‘TCA_FLOW_RSHIFT’?
>      {TCA_TCINDEX_SHIFT, &shift, sizeof(shift), NULL},
>       ^~~~~~~~~~~~~~~~~
>       TCA_FLOW_RSHIFT
>   CC testcases/cve/cve-2016-7117
>   CC utils/sctp/func_tests/test_getname_v6.o
>   tcindex01.c:69:4: error: ‘TCA_TCINDEX_CLASSID’ undeclared here (not in a function);
>      did you mean ‘TCA_FLOWER_CLASSID’?
>      {TCA_TCINDEX_CLASSID, &clsid, sizeof(clsid), NULL},
>       ^~~~~~~~~~~~~~~~~~~
>       TCA_FLOWER_CLASSID
>
> The errors were due to the removal of certain TCA_TCINDEX_ constants
> from the kernel's user API (uapi), as indicated by the kernel commit.
>
>   commit 82b2545ed9a (net/sched: Remove uapi support for tcindex classifier)
>
> The reason why I didn't add this into LTP library is that the defines
> have been dropped we just need to satisfy this one case.
> ---
>
> Notes:
>     We need to merge this patch before the new release.
>
>  testcases/cve/tcindex01.c | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>


Pardon my ignorance - what is this tree? I dont recall seeing this
anywhere. If you pull uapi headers from the kernel on your tree you
can catch these deletions sooner..

cheers,
jamal

> diff --git a/testcases/cve/tcindex01.c b/testcases/cve/tcindex01.c
> index b4f2bb01a..70e5639f1 100644
> --- a/testcases/cve/tcindex01.c
> +++ b/testcases/cve/tcindex01.c
> @@ -32,6 +32,23 @@
>
>  #define DEVNAME "ltp_dummy1"
>
> +#ifndef TCA_TCINDEX_MAX
> +enum {
> +       TCA_TCINDEX_UNSPEC,
> +       TCA_TCINDEX_HASH,
> +       TCA_TCINDEX_MASK,
> +       TCA_TCINDEX_SHIFT,
> +       TCA_TCINDEX_FALL_THROUGH,
> +       TCA_TCINDEX_CLASSID,
> +       TCA_TCINDEX_POLICE,
> +       TCA_TCINDEX_ACT,
> +       __TCA_TCINDEX_MAX
> +};
> +
> +#define TCA_TCINDEX_MAX     (__TCA_TCINDEX_MAX - 1)
> +#endif
> +
> +
>  static const uint32_t qd_handle = TC_H_MAKE(1 << 16, 0);
>  static const uint32_t clsid = TC_H_MAKE(1 << 16, 1);
>  static const uint32_t shift = 10;
> --
> 2.40.1
>

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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Li Wang]

Hi Jamal,

Jamal Hadi Salim <jhs@mojatatu.com> wrote:

Pardon my ignorance - what is this tree? I dont recall seeing this
> anywhere. If you pull uapi headers from the kernel on your tree you
> can catch these deletions sooner..
>

This is an LTP (Linux Test Project <https://linux-test-project.github.io/>)
that targets testing the Linux kernel.

The commit 82b2545ed9a you made in kernel recently caused the LTP
compile break on the latest mainline kernel. So that's why I CCed you
in this patch.

BTW, It would be helpful to run some LTP test cases against our kernel-patch
before sent to LKML next time.


-- 
Regards,
Li Wang

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Re: [LTP] [PATCH] tcindex01: fix compilation errors due to missing TCA_TCINDEX_ constants

[Jamal Hadi Salim]

Hi Li Wang,

On Wed, Jan 17, 2024 at 7:49 PM Li Wang <liwang@redhat.com> wrote:
>
> Hi Jamal,
>
> Jamal Hadi Salim <jhs@mojatatu.com> wrote:
>
>> Pardon my ignorance - what is this tree? I dont recall seeing this
>> anywhere. If you pull uapi headers from the kernel on your tree you
>> can catch these deletions sooner..
>
>
> This is an LTP (Linux Test Project) that targets testing the Linux kernel.
>
> The commit 82b2545ed9a you made in kernel recently caused the LTP
> compile break on the latest mainline kernel. So that's why I CCed you
> in this patch.
>
> BTW, It would be helpful to run some LTP test cases against our kernel-patch
> before sent to LKML next time.
>

Take a look at NIPA. It allows distributed testing - meaning you can
run LTP tests on your machine(s) and then share the results. There's a
doc here:
https://docs.google.com/document/d/1TPlOOvv0GaopC3fzW-wiq8TYpl7rh8Vl_mmal0uFeJc/edit
It currently it works on kernel branch snapshots - which at minimal
would have caught the issue you fixed on LTP with tcindex.

cheers,
jamal

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