Merge tag 'v5.2-rc4' into media/master

There are some conflicts due to SPDX changes. We also have more
patches being merged via media tree touching them.

So, let's merge back from upstream and address those.

Linux 5.2-rc4

* tag 'v5.2-rc4': (767 commits)
  Linux 5.2-rc4
  MAINTAINERS: Karthikeyan Ramasubramanian is MIA
  i2c: xiic: Add max_read_len quirk
  lockref: Limit number of cmpxchg loop retries
  uaccess: add noop untagged_addr definition
  x86/insn-eval: Fix use-after-free access to LDT entry
  kbuild: use more portable 'command -v' for cc-cross-prefix
  s390/unwind: correct stack switching during unwind
  block, bfq: add weight symlink to the bfq.weight cgroup parameter
  cgroup: let a symlink too be created with a cftype file
  drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
  drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
  drm/nouveau/secboot: split out FW version-specific LS function pointers
  drm/nouveau/secboot: pass max supported FW version to LS load funcs
  drm/nouveau/core: support versioned firmware loading
  drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
  block: free sched's request pool in blk_cleanup_queue
  pktgen: do not sleep with the thread lock held.
  net: mvpp2: Use strscpy to handle stat strings
  net: rds: fix memory leak in rds_ib_flush_mr_pool
  ...

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

8 files changed, 14 insertions, 72 deletions

diff --git a/drivers/misc/genwqe/card_base.c b/drivers/misc/genwqe/card_base.c
index d137d0fab9bf..ab7f2cd21c93 100644
--- a/drivers/misc/genwqe/card_base.c
+++ b/drivers/misc/genwqe/card_base.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /**
  * IBM Accelerator Family 'GenWQE'
  *
@@ -7,15 +8,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 /*
diff --git a/drivers/misc/genwqe/card_base.h b/drivers/misc/genwqe/card_base.h
index 77ed3967c5b0..2f6dd2f37942 100644
--- a/drivers/misc/genwqe/card_base.h
+++ b/drivers/misc/genwqe/card_base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef __CARD_BASE_H__
 #define __CARD_BASE_H__
 
@@ -10,15 +11,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 /*
diff --git a/drivers/misc/genwqe/card_ddcb.c b/drivers/misc/genwqe/card_ddcb.c
index 9a65bd9d6152..026c6ca24540 100644
--- a/drivers/misc/genwqe/card_ddcb.c
+++ b/drivers/misc/genwqe/card_ddcb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /**
  * IBM Accelerator Family 'GenWQE'
  *
@@ -7,15 +8,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 /*
diff --git a/drivers/misc/genwqe/card_debugfs.c b/drivers/misc/genwqe/card_debugfs.c
index 6f7e39f07811..49c945d0c488 100644
--- a/drivers/misc/genwqe/card_debugfs.c
+++ b/drivers/misc/genwqe/card_debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /**
  * IBM Accelerator Family 'GenWQE'
  *
@@ -7,15 +8,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 /*
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index 8c1b63a4337b..3bc51f19c734 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /**
  * IBM Accelerator Family 'GenWQE'
  *
@@ -7,15 +8,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 /*
@@ -780,6 +772,8 @@ static int genwqe_pin_mem(struct genwqe_file *cfile, struct genwqe_mem *m)
 
 	if ((m->addr == 0x0) || (m->size == 0))
 		return -EINVAL;
+	if (m->size > ULONG_MAX - PAGE_SIZE - (m->addr & ~PAGE_MASK))
+		return -EINVAL;
 
 	map_addr = (m->addr & PAGE_MASK);
 	map_size = round_up(m->size + (m->addr & ~PAGE_MASK), PAGE_SIZE);
diff --git a/drivers/misc/genwqe/card_sysfs.c b/drivers/misc/genwqe/card_sysfs.c
index c24c9b7c1dd3..28a3fb1533f7 100644
--- a/drivers/misc/genwqe/card_sysfs.c
+++ b/drivers/misc/genwqe/card_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /**
  * IBM Accelerator Family 'GenWQE'
  *
@@ -7,15 +8,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 /*
diff --git a/drivers/misc/genwqe/card_utils.c b/drivers/misc/genwqe/card_utils.c
index 89cff9d1012b..2e1c4d2905e8 100644
--- a/drivers/misc/genwqe/card_utils.c
+++ b/drivers/misc/genwqe/card_utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /**
  * IBM Accelerator Family 'GenWQE'
  *
@@ -7,15 +8,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 /*
@@ -586,6 +578,10 @@ int genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m, void *uaddr,
 	/* determine space needed for page_list. */
 	data = (unsigned long)uaddr;
 	offs = offset_in_page(data);
+	if (size > ULONG_MAX - PAGE_SIZE - offs) {
+		m->size = 0;	/* mark unused and not added */
+		return -EINVAL;
+	}
 	m->nr_pages = DIV_ROUND_UP(offs + size, PAGE_SIZE);
 
 	m->page_list = kcalloc(m->nr_pages,
diff --git a/drivers/misc/genwqe/genwqe_driver.h b/drivers/misc/genwqe/genwqe_driver.h
index 15355350e076..8c333481b3ba 100644
--- a/drivers/misc/genwqe/genwqe_driver.h
+++ b/drivers/misc/genwqe/genwqe_driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef __GENWQE_DRIVER_H__
 #define __GENWQE_DRIVER_H__
 
@@ -10,15 +11,6 @@
  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  * Author: Michael Jung <mijung@gmx.net>
  * Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 #include <linux/types.h>