[folded-merged] fs-procfs-add-build-id-fetching-to-procmap_query-api-fix.patch removed from -mm tree

[folded-merged] fs-procfs-add-build-id-fetching-to-procmap_query-api-fix.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: fs/procfs: fix integer to pointer cast warning in do_procmap_query()
has been removed from the -mm tree.  Its filename was
     fs-procfs-add-build-id-fetching-to-procmap_query-api-fix.patch

This patch was dropped because it was folded into fs-procfs-add-build-id-fetching-to-procmap_query-api.patch

------------------------------------------------------
From: Andrii Nakryiko <andrii@kernel.org>
Subject: fs/procfs: fix integer to pointer cast warning in do_procmap_query()
Date: Mon, 1 Jul 2024 10:48:04 -0700

On 32-bit architectures compiler will complain about casting __u64 to
void * pointer:

fs/proc/task_mmu.c: In function 'do_procmap_query':
fs/proc/task_mmu.c:598:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  598 |         if (karg.vma_name_size && copy_to_user((void __user *)karg.vma_name_addr,
      |                                                ^
fs/proc/task_mmu.c:605:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  605 |         if (karg.build_id_size && copy_to_user((void __user *)karg.build_id_addr,
      |                                                ^

Fix this by using u64_to_user_ptr() helper that's meant to handle this
properly.

Link: https://lkml.kernel.org/r/20240701174805.1897344-1-andrii@kernel.org
Fixes: df789ce1eb90 ("fs/procfs: add build ID fetching to PROCMAP_QUERY API")
Fixes: 3757be498749 ("fs/procfs: implement efficient VMA querying API for /proc/<pid>/maps")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/proc/task_mmu.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/proc/task_mmu.c~fs-procfs-add-build-id-fetching-to-procmap_query-api-fix
+++ a/fs/proc/task_mmu.c
@@ -595,14 +595,14 @@ static int do_procmap_query(struct proc_
 	query_vma_teardown(mm, vma);
 	mmput(mm);
 
-	if (karg.vma_name_size && copy_to_user((void __user *)karg.vma_name_addr,
+	if (karg.vma_name_size && copy_to_user(u64_to_user_ptr(karg.vma_name_addr),
 					       name, karg.vma_name_size)) {
 		kfree(name_buf);
 		return -EFAULT;
 	}
 	kfree(name_buf);
 
-	if (karg.build_id_size && copy_to_user((void __user *)karg.build_id_addr,
+	if (karg.build_id_size && copy_to_user(u64_to_user_ptr(karg.build_id_addr),
 					       build_id_buf, karg.build_id_size))
 		return -EFAULT;
 
_

Patches currently in -mm which might be from andrii@kernel.org are

fs-procfs-extract-logic-for-getting-vma-name-constituents.patch
fs-procfs-implement-efficient-vma-querying-api-for-proc-pid-maps.patch
fs-procfs-add-build-id-fetching-to-procmap_query-api.patch
docs-procfs-call-out-ioctl-based-procmap_query-command-existence.patch
tools-sync-uapi-linux-fsh-header-into-tools-subdir.patch
selftests-proc-add-procmap_query-ioctl-tests.patch