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Mercier" Cc: agordeev@linux.ibm.com, gerald.schaefer@linux.ibm.com, linux-s390@vger.kernel.org, mripard@kernel.org, sumit.semwal@linaro.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] s390/mm: Export set_memory_encrypted and set_memory_decrypted Message-ID: <20260523160131.11676Ac3-hca@linux.ibm.com> References: <20260522230606.883180-1-tjmercier@google.com> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260522230606.883180-1-tjmercier@google.com> X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=VvYTxe2n c=1 sm=1 tr=0 ts=6a11cf62 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=kj9zAlcOel0A:10 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=1XWaLZrsAAAA:8 a=VnNF1IyMAAAA:8 a=FOGFa6JwZNi86Dr7BrUA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-ORIG-GUID: Y_wJIeq9mi3OSd7znAB8gEPADIUzjUSu X-Proofpoint-GUID: GCoDYhQF4hJRpt1ODb04frUCm76PF4fx X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIzMDE2MCBTYWx0ZWRfX+kZ3JVNV0AOd CpJkq3gBoTyTU4d5Swhpbl2ldkWSfwUShMWirN4p28MRt5oRxYxbfKoBsvoGoIOYWKZzI7a0fyx 4jmJZ0wIe7UtZK++/d9GvSqadLVD2+Qw74LvUbhDhHB+X7nMCqch2vmNt+RZ2K3jNq5zBJxZAVg 3Rc0zpa38r/S/WQbZGjmaEDKFnEx1l15JM2R2xSqhy2iEk/e5a0Y+mc7SPmlKs6C6vGHAZ8bKfy ffsbnCBw9qKtGyFgPEuIS/odbPRT7VAi/uNnCq8zA4YGDZMtyT2ngWIDpjObNFeTmb4sHcRQmQ6 zdS0Q98JaLEpOf+FDwoMXHM0PGp+d3mPt29wawrmPieccjAa5/IGKxZsqNR6f9lkjZZylHieXnU Tu4QPohoSPPdRyacFmhjwZo6zppR6HYGwAxJCtkZCXvIhnxAvBb+87AZgSxiIrvvDDAa5WmD7TN 755iFZglvRqRIQFbADg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-23_05,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 priorityscore=1501 spamscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 impostorscore=0 clxscore=1011 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605230160 On Fri, May 22, 2026 at 04:06:05PM -0700, T.J. Mercier wrote: > After commit fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a > module") the system dma-buf heaps can be built as a module. The > system_cc_shared heap uses set_memory_encrypted and set_memory_decrypted > but those functions are not exported on s390. This results in a build > error like: > > >> ERROR: modpost: "set_memory_decrypted" [drivers/dma-buf/heaps/system_heap.ko] undefined! > >> ERROR: modpost: "set_memory_encrypted" [drivers/dma-buf/heaps/system_heap.ko] undefined! > > Export the functions so system_heap.ko can be built. > > Fixes: fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a module") > Signed-off-by: T.J. Mercier > --- > arch/s390/mm/init.c | 2 ++ > 1 file changed, 2 insertions(+) Fine with me, but this should go via drm-misc-next, since the commit which breaks this is currently only available in linux-next. Sumit, I guess you will add this to your queue? In any case: Acked-by: Heiko Carstens