Hi Stephen, A small query. How do I look at the tree where the build is failing. Regards, Muneendra. -----Original Message----- From: Stephen Rothwell [mailto:sfr@canb.auug.org.au] Sent: Thursday, June 17, 2021 3:02 PM To: Andrew Morton ; Martin K. Petersen Cc: Muneendra Kumar ; Linux Kernel Mailing List ; Linux Next Mailing List Subject: linux-next: build failure after merge of the akpm tree Hi all, After merging the akpm tree, today's linux-next build (x86_64 allmodconfig) failed like this: ERROR: modpost: "cgroup_get_e_css" [drivers/nvme/host/nvme-fc.ko] undefined! ERROR: modpost: "cgroup_get_e_css" [drivers/block/loop.ko] undefined! Caused by patch kernel/cgroup/cgroup.c: don't export cgroup_get_e_css twice I am not sure what happened here, but this patch interacts with commit 6b658c4863c1 ("scsi: cgroup: Add cgroup_get_from_id()") from the scsi-mkp tree which adds the EXPORT_SYMBOL_GPL(). I have reverted that akpm tree patch for today. -- Cheers, Stephen Rothwell -- This electronic communication and the information and any files transmitted with it, or attached to it, are confidential and are intended solely for the use of the individual or entity to whom it is addressed and may contain information that is confidential, legally privileged, protected by privacy laws, or otherwise restricted from disclosure to anyone else. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, you are hereby notified that any use, copying, distributing, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited. If you received this e-mail in error, please return the e-mail to the sender, delete it from your computer, and destroy any printed copy of it.