Re: [akpm-mm:mm-stable 242/251] hmm-tests.c:1607:42: error: 'HMM_DMIRROR_MIGRATE' undeclared; did you mean 'HMM_DMIRROR_WRITE'?

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On Wed, 3 Aug 2022 08:24:08 +0800 kernel test robot <lkp@xxxxxxxxx> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-stable
> head:   1a44131d4f524e18d873bbe363598e39841001bf
> commit: f6c3e1ae0114cd0f5123cf38187d450c1b119e67 [242/251] mm/hmm: add a test for cross device private faults
> compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
> reproduce:
>         # https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?id=f6c3e1ae0114cd0f5123cf38187d450c1b119e67
>         git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
>         git fetch --no-tags akpm-mm mm-stable
>         git checkout f6c3e1ae0114cd0f5123cf38187d450c1b119e67
>         make O=/tmp/kselftest headers
>         make O=/tmp/kselftest -C tools/testing/selftests
> 
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> 
> All errors (new ones prefixed by >>):
> 
>    hmm-tests.c: In function 'hmm2_double_map':
> >> hmm-tests.c:1607:42: error: 'HMM_DMIRROR_MIGRATE' undeclared (first use in this function); did you mean 'HMM_DMIRROR_WRITE'?
>     1607 |         ret = hmm_dmirror_cmd(self->fd1, HMM_DMIRROR_MIGRATE, buffer, npages);
>          |                                          ^~~~~~~~~~~~~~~~~~~
>          |                                          HMM_DMIRROR_WRITE
>    hmm-tests.c:1607:42: note: each undeclared identifier is reported only once for each function it appears in

oops, thanks.  It's been a week - I'm surprised this wasn't picked up
sooner?

Ralph, Alistair, is this right?



From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: tools/testing/selftests/vm/hmm-tests.c: fix build
Date: Tue Aug  2 06:03:03 PM PDT 2022

hmm-tests.c:1607:42: error: 'HMM_DMIRROR_MIGRATE' undeclared (first use in this function); did you mean 'HMM_DMIRROR_WRITE'?

Fixes: f6c3e1ae0114cd0 ("mm/hmm: add a test for cross device private faults")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: Ralph Campbell <rcampbell@xxxxxxxxxx>
Cc: Alistair Popple <apopple@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 tools/testing/selftests/vm/hmm-tests.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/vm/hmm-tests.c~tools-testing-selftests-vm-hmm-testsc-fix-build
+++ a/tools/testing/selftests/vm/hmm-tests.c
@@ -1604,7 +1604,7 @@ TEST_F(hmm2, double_map)
 		ASSERT_EQ(ptr[i], i);
 
 	/* Migrate pages to device 1 and try to read from device 0. */
-	ret = hmm_dmirror_cmd(self->fd1, HMM_DMIRROR_MIGRATE, buffer, npages);
+	ret = hmm_migrate_sys_to_dev(self->fd1, buffer, npages);
 	ASSERT_EQ(ret, 0);
 	ASSERT_EQ(buffer->cpages, npages);
 
_





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