Re: Linux 6.1.76

Greg Kroah-Hartman
2024-02-01T00:44:14Z

diff --git a/Documentation/ABI/testing/sysfs-class-devfreq b/Documentation/ABI/testing/sysfs-class-devfreq
index 5e6b74f30406..1e7e0bb4c14e 100644
--- a/Documentation/ABI/testing/sysfs-class-devfreq
+++ b/Documentation/ABI/testing/sysfs-class-devfreq
@@ -52,6 +52,9 @@ Description:

echo 0 > /sys/class/devfreq/.../trans_stat

+ If the transition table is bigger than PAGE_SIZE, reading
+ this will return an -EFBIG error.
+
What: /sys/class/devfreq/.../available_frequencies
Date: October 2012
Contact: Nishanth Menon <nm@ti.com>
diff --git a/Documentation/admin-guide/abi-obsolete.rst b/Documentation/admin-guide/abi-obsolete.rst
index d095867899c5..594e697aa1b2 100644
--- a/Documentation/admin-guide/abi-obsolete.rst
+++ b/Documentation/admin-guide/abi-obsolete.rst
@@ -7,5 +7,5 @@ marked to be removed at some later point in time.
The description of the interface will document the reason why it is
obsolete and when it can be expected to be removed.

-.. kernel-abi:: $srctree/Documentation/ABI/obsolete
+.. kernel-abi:: ABI/obsolete
:rst:
diff --git a/Documentation/admin-guide/abi-removed.rst b/Documentation/admin-guide/abi-removed.rst
index f7e9e43023c1..f9e000c81828 100644
--- a/Documentation/admin-guide/abi-removed.rst
+++ b/Documentation/admin-guide/abi-removed.rst
@@ -1,5 +1,5 @@
ABI removed symbols
===================

-.. kernel-abi:: $srctree/Documentation/ABI/removed
+.. kernel-abi:: ABI/removed
:rst:
diff --git a/Documentation/admin-guide/abi-stable.rst b/Documentation/admin-guide/abi-stable.rst
index 70490736e0d3..fc3361d847b1 100644
--- a/Documentation/admin-guide/abi-stable.rst
+++ b/Documentation/admin-guide/abi-stable.rst
@@ -10,5 +10,5 @@ for at least 2 years.
Most interfaces (like syscalls) are expected to never change and always
be available.

-.. kernel-abi:: $srctree/Documentation/ABI/stable
+.. kernel-abi:: ABI/stable
:rst:
diff --git a/Documentation/admin-guide/abi-testing.rst b/Documentation/admin-guide/abi-testing.rst
index b205b16a72d0..19767926b344 100644
--- a/Documentation/admin-guide/abi-testing.rst
+++ b/Documentation/admin-guide/abi-testing.rst
@@ -16,5 +16,5 @@ Programs that use these interfaces are strongly encouraged to add their
name to the description of these interfaces, so that the kernel
developers can easily notify them if any changes occur.

-.. kernel-abi:: $srctree/Documentation/ABI/testing
+.. kernel-abi:: ABI/testing
:rst:
diff --git a/Documentation/filesystems/directory-locking.rst b/Documentation/filesystems/directory-locking.rst
index dccd61c7c5c3..193c22687851 100644
--- a/Documentation/filesystems/directory-locking.rst
+++ b/Documentation/filesystems/directory-locking.rst
@@ -22,13 +22,16 @@ exclusive.
3) object removal. Locking rules: caller locks parent, finds victim,
locks victim and calls the method. Locks are exclusive.

-4) rename() that is _not_ cross-directory. Locking rules: caller locks the
-parent and finds source and target. We lock both (provided they exist). If we
-need to lock two inodes of different type (dir vs non-dir), we lock directory
-first. If we need to lock two inodes of the same type, lock them in inode
-pointer order. Then call the method. All locks are exclusive.
-NB: we might get away with locking the source (and target in exchange
-case) shared.
+4) rename() that is _not_ cross-directory. Locking rules: caller locks
+the parent and finds source and target. Then we decide which of the
+source and target need to be locked. Source needs to be locked if it's a
+non-directory; target - if it's a non-directory or about to be removed.
+Take the locks that need to be taken, in inode pointer order if need
+to take both (that can happen only when both source and target are
+non-directories - the source because it wouldn't be locked otherwise
+and the target because mixing directory and non-directory is allowed
+only with RENAME_EXCHANGE, and that won't be removing the target).
+After the locks had been taken, call the method. All locks are exclusive.

5) link creation. Locking rules:

@@ -44,20 +47,17 @@ rules:

* lock the filesystem
* lock parents in "ancestors first" order. If one is not ancestor of
- the other, lock them in inode pointer order.
+ the other, lock the parent of source first.
* find source and target.
* if old parent is equal to or is a descendent of target
fail with -ENOTEMPTY
* if new parent is equal to or is a descendent of source
fail with -ELOOP
- * Lock both the source and the target provided they exist. If we
- need to lock two inodes of different type (dir vs non-dir), we lock
- the directory first. If we need to lock two inodes of the same type,
- lock them in inode pointer order.
+ * Lock subdirectories involved (source before target).
+ * Lock non-directories involved, in inode pointer order.
* call the method.

-All ->i_rwsem are taken exclusive. Again, we might get away with locking
-the source (and target in exchange case) shared.
+All ->i_rwsem are taken exclusive.

The rules above obviously guarantee that all directories that are going to be
read, modified or removed by method will be locked by caller.
@@ -67,6 +67,7 @@ If no directory is its own ancestor, the scheme above is deadlock-free.

Proof:

+[XXX: will be updated once we are done massaging the lock_rename()]
First of all, at any moment we have a linear ordering of the
objects - A < B iff (A is an ancestor of B) or (B is not an ancestor
of A and ptr(A) < ptr(B)).
diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst
index 8f737e76935c..555215c416d9 100644
--- a/Documentation/filesystems/locking.rst
+++ b/Documentation/filesystems/locking.rst
@@ -99,7 +99,7 @@ symlink: exclusive
mkdir: exclusive
unlink: exclusive (both)
rmdir: exclusive (both)(see below)
-rename: exclusive (all) (see below)
+rename: exclusive (both parents, some children) (see below)
readlink: no
get_link: no
setattr: exclusive
@@ -119,6 +119,9 @@ fileattr_set: exclusive
Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_rwsem
exclusive on victim.
cross-directory ->rename() has (per-superblock) ->s_vfs_rename_sem.
+ ->unlink() and ->rename() have ->i_rwsem exclusive on all non-directories
+ involved.
+ ->rename() has ->i_rwsem exclusive on any subdirectory that changes parent.

See Documentation/filesystems/directory-locking.rst for more detailed discussion
of the locking scheme for directory operations.
diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst
index df0dc37e6f58..c6aaf340f179 100644
--- a/Documentation/filesystems/porting.rst
+++ b/Documentation/filesystems/porting.rst
@@ -943,3 +943,21 @@ file pointer instead of struct dentry pointer. d_tmpfile() is similarly
changed to simplify callers. The passed file is in a non-open state and on
success must be opened before returning (e.g. by calling
finish_open_simple()).
+
+---
+
+**mandatory**
+
+If ->rename() update of .. on cross-directory move needs an exclusion with
+directory modifications, do *not* lock the subdirectory in question in your
+->rename() - it's done by the caller now [that item should've been added in
+28eceeda130f "fs: Lock moved directories"].
+
+---
+
+**mandatory**
+
+On same-directory ->rename() the (tautological) update of .. is not protected
+by any locks; just don't do it if the old parent is the same as the new one.
+We really can't lock two subdirectories in same-directory rename - not without
+deadlocks.
diff --git a/Documentation/sphinx/kernel_abi.py b/Documentation/sphinx/kernel_abi.py
index b5feb5b1d905..6d8a637ad566 100644
--- a/Documentation/sphinx/kernel_abi.py
+++ b/Documentation/sphinx/kernel_abi.py
@@ -39,8 +39,6 @@ import sys
import re
import kernellog

-from os import path
-
from docutils import nodes, statemachine
from docutils.statemachine import ViewList
from docutils.parsers.rst import directives, Directive
@@ -73,60 +71,26 @@ class KernelCmd(Directive):
}

def run(self):
-
doc = self.state.document
if not doc.settings.file_insertion_enabled:
raise self.warning("docutils: file insertion disabled")

- env = doc.settings.env
- cwd = path.dirname(doc.current_source)
- cmd = "get_abi.pl rest --enable-lineno --dir "
- cmd += self.arguments[0]
-
- if 'rst' in self.options:
- cmd += " --rst-source"
+ srctree = os.path.abspath(os.environ["srctree"])

- srctree = path.abspath(os.environ["srctree"])
+ args = [
+ os.path.join(srctree, 'scripts/get_abi.pl'),
+ 'rest',
+ '--enable-lineno',
+ '--dir', os.path.join(srctree, 'Documentation', self.arguments[0]),
+ ]

- fname = cmd
-
- # extend PATH with $(srctree)/scripts
- path_env = os.pathsep.join([
- srctree + os.sep + "scripts",
- os.environ["PATH"]
- ])
- shell_env = os.environ.copy()
- shell_env["PATH"] = path_env
- shell_env["srctree"] = srctree
+ if 'rst' in self.options:
+ args.append('--rst-source')

- lines = self.runCmd(cmd, shell=True, cwd=cwd, env=shell_env)
+ lines = subprocess.check_output(args, cwd=os.path.dirname(doc.current_source)).decode('utf-8')
nodeList = self.nestedParse(lines, self.arguments[0])
return nodeList

- def runCmd(self, cmd, **kwargs):
- u"""Run command ``cmd`` and return its stdout as unicode."""
-
- try:
- proc = subprocess.Popen(
- cmd
- , stdout = subprocess.PIPE
- , stderr = subprocess.PIPE
- , **kwargs
- )
- out, err = proc.communicate()
-
- out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8')
-
- if proc.returncode != 0:
- raise self.severe(
- u"command '%s' failed with return code %d"
- % (cmd, proc.returncode)
- )
- except OSError as exc:
- raise self.severe(u"problems with '%s' directive: %s."
- % (self.name, ErrorString(exc)))
- return out
-
def nestedParse(self, lines, fname):
env = self.state.document.settings.env
content = ViewList()
diff --git a/Makefile b/Makefile
index 7cd49d9eadbf..9dd167178ab4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 6
PATCHLEVEL = 1
-SUBLEVEL = 75
+SUBLEVEL = 76
EXTRAVERSION =
NAME = Curry Ramen

diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c
index fb3025396ac9..cfdf90bc8b3f 100644
--- a/arch/alpha/kernel/rtc.c
+++ b/arch/alpha/kernel/rtc.c
@@ -80,7 +80,7 @@ init_rtc_epoch(void)
static int
alpha_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
- int ret = mc146818_get_time(tm);
+ int ret = mc146818_get_time(tm, 10);

if (ret < 0) {
dev_err_ratelimited(dev, "unable to read current time\n");
diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts
index 53e023fc1cac..b4c7b642e456 100644
--- a/arch/arm/boot/dts/exynos4210-i9100.dts
+++ b/arch/arm/boot/dts/exynos4210-i9100.dts
@@ -521,6 +521,14 @@ vtcam_reg: LDO12 {
regulator-name = "VT_CAM_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+
+ /*
+ * Force-enable this regulator; otherwise the
+ * kernel hangs very early in the boot process
+ * for about 12 seconds, without apparent
+ * reason.
+ */
+ regulator-always-on;
};

vcclcd_reg: LDO13 {
diff --git a/arch/arm/boot/dts/qcom-sdx55.dtsi b/arch/arm/boot/dts/qcom-sdx55.dtsi
index a4bf1d5ee206..b85820448b9d 100644
--- a/arch/arm/boot/dts/qcom-sdx55.dtsi
+++ b/arch/arm/boot/dts/qcom-sdx55.dtsi
@@ -495,10 +495,10 @@ usb: usb@a6f8800 {
<&gcc GCC_USB30_MASTER_CLK>;
assigned-clock-rates = <19200000>, <200000000>;

- interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 198 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
+ <&pdc 51 IRQ_TYPE_LEVEL_HIGH>,
+ <&pdc 11 IRQ_TYPE_EDGE_BOTH>,
+ <&pdc 10 IRQ_TYPE_EDGE_BOTH>;
interrupt-names = "hs_phy_irq", "ss_phy_irq",
"dm_hs_phy_irq", "dp_hs_phy_irq";

@@ -522,7 +522,7 @@ pdc: interrupt-controller@b210000 {
compatible = "qcom,sdx55-pdc", "qcom,pdc";
reg = <0x0b210000 0x30000>;
qcom,pdc-ranges = <0 179 52>;
- #interrupt-cells = <3>;
+ #interrupt-cells = <2>;
interrupt-parent = <&intc>;
interrupt-controller;
};
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index ea70eb960565..c15f71501c6c 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -983,8 +983,12 @@ config ARM64_ERRATUM_2457168

If unsure, say Y.

+config ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
+ bool
+
config ARM64_ERRATUM_2966298
bool "Cortex-A520: 2966298: workaround for speculatively executed unprivileged load"
+ select ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
default y
help
This option adds the workaround for ARM Cortex-A520 erratum 2966298.
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 78e537f1d796..13fe1c92bf35 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -2769,8 +2769,8 @@ usb_1: usb@a6f8800 {

interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
<&pdc 6 IRQ_TYPE_LEVEL_HIGH>,
- <&pdc 8 IRQ_TYPE_LEVEL_HIGH>,
- <&pdc 9 IRQ_TYPE_LEVEL_HIGH>;
+ <&pdc 8 IRQ_TYPE_EDGE_BOTH>,
+ <&pdc 9 IRQ_TYPE_EDGE_BOTH>;
interrupt-names = "hs_phy_irq", "ss_phy_irq",
"dm_hs_phy_irq", "dp_hs_phy_irq";

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 7fc8c2045022..04106d725400 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -3664,9 +3664,9 @@ usb_1: usb@a6f8800 {
assigned-clock-rates = <19200000>, <200000000>;

interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
- <&pdc 14 IRQ_TYPE_LEVEL_HIGH>,
+ <&pdc 14 IRQ_TYPE_EDGE_BOTH>,
<&pdc 15 IRQ_TYPE_EDGE_BOTH>,
- <&pdc 17 IRQ_TYPE_EDGE_BOTH>;
+ <&pdc 17 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "hs_phy_irq",
"dp_hs_phy_irq",
"dm_hs_phy_irq",
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 1e6841902900..4d5905ef0b41 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -4048,10 +4048,10 @@ usb_1: usb@a6f8800 {
<&gcc GCC_USB30_PRIM_MASTER_CLK>;
assigned-clock-rates = <19200000>, <150000000>;

- interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 488 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 489 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
+ <&intc GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
+ <&pdc_intc 8 IRQ_TYPE_EDGE_BOTH>,
+ <&pdc_intc 9 IRQ_TYPE_EDGE_BOTH>;
interrupt-names = "hs_phy_irq", "ss_phy_irq",
"dm_hs_phy_irq", "dp_hs_phy_irq";

@@ -4099,10 +4099,10 @@ usb_2: usb@a8f8800 {
<&gcc GCC_USB30_SEC_MASTER_CLK>;
assigned-clock-rates = <19200000>, <150000000>;

- interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 487 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 490 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 491 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts-extended = <&intc GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
+ <&intc GIC_SPI 487 IRQ_TYPE_LEVEL_HIGH>,
+ <&pdc_intc 10 IRQ_TYPE_EDGE_BOTH>,
+ <&pdc_intc 11 IRQ_TYPE_EDGE_BOTH>;
interrupt-names = "hs_phy_irq", "ss_phy_irq",
"dm_hs_phy_irq", "dp_hs_phy_irq";

diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
index c3c12b0cd416..8efd0e227d78 100644
--- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
@@ -3628,10 +3628,10 @@ usb_1: usb@a6f8800 {
<&gcc GCC_USB30_PRIM_MASTER_CLK>;
assigned-clock-rates = <19200000>, <200000000>;

- interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 488 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 489 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
+ <&intc GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
+ <&pdc 8 IRQ_TYPE_EDGE_BOTH>,
+ <&pdc 9 IRQ_TYPE_EDGE_BOTH>;
interrupt-names = "hs_phy_irq", "ss_phy_irq",
"dm_hs_phy_irq", "dp_hs_phy_irq";

@@ -3677,10 +3677,10 @@ usb_2: usb@a8f8800 {
<&gcc GCC_USB30_SEC_MASTER_CLK>;
assigned-clock-rates = <19200000>, <200000000>;

- interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 487 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 490 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 491 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts-extended = <&intc GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
+ <&intc GIC_SPI 487 IRQ_TYPE_LEVEL_HIGH>,
+ <&pdc 10 IRQ_TYPE_EDGE_BOTH>,
+ <&pdc 11 IRQ_TYPE_EDGE_BOTH>;
interrupt-names = "hs_phy_irq", "ss_phy_irq",
"dm_hs_phy_irq", "dp_hs_phy_irq";

diff --git a/arch/arm64/boot/install.sh b/arch/arm64/boot/install.sh
index 7399d706967a..9b7a09808a3d 100755
--- a/arch/arm64/boot/install.sh
+++ b/arch/arm64/boot/install.sh
@@ -17,7 +17,8 @@
# $3 - kernel map file
# $4 - default install path (blank if root directory)

-if [ "$(basename $2)" = "Image.gz" ]; then
+if [ "$(basename $2)" = "Image.gz" ] || [ "$(basename $2)" = "vmlinuz.efi" ]
+then
# Compressed install
echo "Installing compressed kernel"
base=vmlinuz
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 3f917124684c..61f22e9c92b4 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -723,10 +723,10 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
.cpu_enable = cpu_clear_bf16_from_user_emulation,
},
#endif
-#ifdef CONFIG_ARM64_ERRATUM_2966298
+#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
{
.desc = "ARM erratum 2966298",
- .capability = ARM64_WORKAROUND_2966298,
+ .capability = ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD,
/* Cortex-A520 r0p0 - r0p1 */
ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A520, 0, 0, 1),
},
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index de16fa917e1b..62146d48dba7 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -419,7 +419,7 @@ alternative_else_nop_endif
ldp x28, x29, [sp, #16 * 14]

.if \el == 0
-alternative_if ARM64_WORKAROUND_2966298
+alternative_if ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
tlbi vale1, xzr
dsb nsh
alternative_else_nop_endif
diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps
index e73830d9f136..2dc7ddee5f04 100644
--- a/arch/arm64/tools/cpucaps
+++ b/arch/arm64/tools/cpucaps
@@ -71,7 +71,6 @@ WORKAROUND_2064142
WORKAROUND_2077057
WORKAROUND_2457168
WORKAROUND_2658417
-WORKAROUND_2966298
WORKAROUND_AMPERE_AC03_CPU_38
WORKAROUND_TRBE_OVERWRITE_FILL_MODE
WORKAROUND_TSB_FLUSH_FAILURE
@@ -87,3 +86,4 @@ WORKAROUND_NVIDIA_CARMEL_CNP
WORKAROUND_QCOM_FALKOR_E1003
WORKAROUND_REPEAT_TLBI
WORKAROUND_SPECULATIVE_AT
+WORKAROUND_SPECULATIVE_UNPRIV_LOAD
diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index 14508d429ffa..434bfc1cd31a 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -471,8 +471,9 @@ asmlinkage void start_secondary(void)
unsigned int cpu;

sync_counter();
- cpu = smp_processor_id();
+ cpu = raw_smp_processor_id();
set_my_cpu_offset(per_cpu_offset(cpu));
+ rcu_cpu_starting(cpu);

cpu_probe();
constant_clockevent_init();
diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c
index 5582a4ca1e9e..7aa2c2360ff6 100644
--- a/arch/mips/kernel/elf.c
+++ b/arch/mips/kernel/elf.c
@@ -11,6 +11,7 @@

#include <asm/cpu-features.h>
#include <asm/cpu-info.h>
+#include <asm/fpu.h>

#ifdef CONFIG_MIPS_FP_SUPPORT

@@ -309,6 +310,11 @@ void mips_set_personality_nan(struct arch_elf_state *state)
struct cpuinfo_mips *c = &boot_cpu_data;
struct task_struct *t = current;

+ /* Do this early so t->thread.fpu.fcr31 won't be clobbered in case
+ * we are preempted before the lose_fpu(0) in start_thread.
+ */
+ lose_fpu(0);
+
t->thread.fpu.fcr31 = c->fpu_csr31;
switch (state->nan_2008) {
case 0:
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index be4829cc7a3a..28da4e720d17 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -114,10 +114,9 @@ void __init prom_init(void)
prom_init_cmdline();

#if defined(CONFIG_MIPS_MT_SMP)
- if (cpu_has_mipsmt) {
- lantiq_smp_ops = vsmp_smp_ops;
+ lantiq_smp_ops = vsmp_smp_ops;
+ if (cpu_has_mipsmt)
lantiq_smp_ops.init_secondary = lantiq_init_secondary;
- register_smp_ops(&lantiq_smp_ops);
- }
+ register_smp_ops(&lantiq_smp_ops);
#endif
}
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 5a8002839550..e8660d06f663 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -417,7 +417,12 @@ void __init paging_init(void)
(highend_pfn - max_low_pfn) << (PAGE_SHIFT - 10));
max_zone_pfns[ZONE_HIGHMEM] = max_low_pfn;
}
+
+ max_mapnr = highend_pfn ? highend_pfn : max_low_pfn;
+#else
+ max_mapnr = max_low_pfn;
#endif
+ high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);

free_area_init(max_zone_pfns);
}
@@ -453,13 +458,6 @@ void __init mem_init(void)
*/
BUILD_BUG_ON(IS_ENABLED(CONFIG_32BIT) && (_PFN_SHIFT > PAGE_SHIFT));

-#ifdef CONFIG_HIGHMEM
- max_mapnr = highend_pfn ? highend_pfn : max_low_pfn;
-#else
- max_mapnr = max_low_pfn;
-#endif
- high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
-
maar_init();
memblock_free_all();
setup_zero_pages(); /* Setup zeroed pages. */
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 3e051a973e9b..92276bcf19d7 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -123,10 +123,10 @@ static unsigned long f_extend(unsigned long address)
#ifdef CONFIG_64BIT
if(unlikely(parisc_narrow_firmware)) {
if((address & 0xff000000) == 0xf0000000)
- return 0xf0f0f0f000000000UL | (u32)address;
+ return (0xfffffff0UL << 32) | (u32)address;

if((address & 0xf0000000) == 0xf0000000)
- return 0xffffffff00000000UL | (u32)address;
+ return (0xffffffffUL << 32) | (u32)address;
}
#endif
return address;
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2c94f9cf1ce0..6050e6e10d32 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -806,7 +806,6 @@ config THREAD_SHIFT
int "Thread shift" if EXPERT
range 13 15
default "15" if PPC_256K_PAGES
- default "15" if PPC_PSERIES || PPC_POWERNV
default "14" if PPC64
default "13"
help
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 526c3f40f6a2..7b66e81e5f87 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -601,7 +601,9 @@ static int ctr_aes_crypt(struct skcipher_request *req)
* final block may be < AES_BLOCK_SIZE, copy only nbytes
*/
if (nbytes) {
- cpacf_kmctr(sctx->fc, sctx->key, buf, walk.src.virt.addr,
+ memset(buf, 0, AES_BLOCK_SIZE);
+ memcpy(buf, walk.src.virt.addr, nbytes);
+ cpacf_kmctr(sctx->fc, sctx->key, buf, buf,
AES_BLOCK_SIZE, walk.iv);
memcpy(walk.dst.virt.addr, buf, nbytes);
crypto_inc(walk.iv, AES_BLOCK_SIZE);
diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c
index 621322eb0e68..d84d87349718 100644
--- a/arch/s390/crypto/paes_s390.c
+++ b/arch/s390/crypto/paes_s390.c
@@ -688,9 +688,11 @@ static int ctr_paes_crypt(struct skcipher_request *req)
* final block may be < AES_BLOCK_SIZE, copy only nbytes
*/
if (nbytes) {
+ memset(buf, 0, AES_BLOCK_SIZE);
+ memcpy(buf, walk.src.virt.addr, nbytes);
while (1) {
if (cpacf_kmctr(ctx->fc, &param, buf,
- walk.src.virt.addr, AES_BLOCK_SIZE,
+ buf, AES_BLOCK_SIZE,
walk.iv) == AES_BLOCK_SIZE)
break;
if (__paes_convert_key(ctx))
diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h
index fd2669b1cb2d..e3323a9dc911 100644
--- a/arch/x86/include/asm/syscall_wrapper.h
+++ b/arch/x86/include/asm/syscall_wrapper.h
@@ -58,12 +58,29 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
,,regs->di,,regs->si,,regs->dx \
,,regs->r10,,regs->r8,,regs->r9) \

+
+/* SYSCALL_PT_ARGS is Adapted from s390x */
+#define SYSCALL_PT_ARG6(m, t1, t2, t3, t4, t5, t6) \
+ SYSCALL_PT_ARG5(m, t1, t2, t3, t4, t5), m(t6, (regs->bp))
+#define SYSCALL_PT_ARG5(m, t1, t2, t3, t4, t5) \
+ SYSCALL_PT_ARG4(m, t1, t2, t3, t4), m(t5, (regs->di))
+#define SYSCALL_PT_ARG4(m, t1, t2, t3, t4) \
+ SYSCALL_PT_ARG3(m, t1, t2, t3), m(t4, (regs->si))
+#define SYSCALL_PT_ARG3(m, t1, t2, t3) \
+ SYSCALL_PT_ARG2(m, t1, t2), m(t3, (regs->dx))
+#define SYSCALL_PT_ARG2(m, t1, t2) \
+ SYSCALL_PT_ARG1(m, t1), m(t2, (regs->cx))
+#define SYSCALL_PT_ARG1(m, t1) m(t1, (regs->bx))
+#define SYSCALL_PT_ARGS(x, ...) SYSCALL_PT_ARG##x(__VA_ARGS__)
+
+#define __SC_COMPAT_CAST(t, a) \
+ (__typeof(__builtin_choose_expr(__TYPE_IS_L(t), 0, 0U))) \
+ (unsigned int)a
+
/* Mapping of registers to parameters for syscalls on i386 */
#define SC_IA32_REGS_TO_ARGS(x, ...) \
- __MAP(x,__SC_ARGS \
- ,,(unsigned int)regs->bx,,(unsigned int)regs->cx \
- ,,(unsigned int)regs->dx,,(unsigned int)regs->si \
- ,,(unsigned int)regs->di,,(unsigned int)regs->bp)
+ SYSCALL_PT_ARGS(x, __SC_COMPAT_CAST, \
+ __MAP(x, __SC_TYPE, __VA_ARGS__)) \

#define __SYS_STUB0(abi, name) \
long __##abi##_##name(const struct pt_regs *regs); \
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 71f336425e58..54732da52dc1 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -1436,7 +1436,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
memset(&curr_time, 0, sizeof(struct rtc_time));

if (hpet_rtc_flags & (RTC_UIE | RTC_AIE)) {
- if (unlikely(mc146818_get_time(&curr_time) < 0)) {
+ if (unlikely(mc146818_get_time(&curr_time, 10) < 0)) {
pr_err_ratelimited("unable to read current time from RTC\n");
return IRQ_HANDLED;
}
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 349046434513..344c141133e4 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -67,7 +67,7 @@ void mach_get_cmos_time(struct timespec64 *now)
return;
}

- if (mc146818_get_time(&tm)) {
+ if (mc146818_get_time(&tm, 1000)) {
pr_err("Unable to read current time from RTC\n");
now->tv_sec = now->tv_nsec = 0;
return;
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index bc288e6bde64..5d4d78c9a787 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -239,18 +239,6 @@ static bool nested_svm_check_bitmap_pa(struct kvm_vcpu *vcpu, u64 pa, u32 size)
kvm_vcpu_is_legal_gpa(vcpu, addr + size - 1);
}

-static bool nested_svm_check_tlb_ctl(struct kvm_vcpu *vcpu, u8 tlb_ctl)
-{
- /* Nested FLUSHBYASID is not supported yet. */
- switch(tlb_ctl) {
- case TLB_CONTROL_DO_NOTHING:
- case TLB_CONTROL_FLUSH_ALL_ASID:
- return true;
- default:
- return false;
- }
-}
-
static bool __nested_vmcb_check_controls(struct kvm_vcpu *vcpu,
struct vmcb_ctrl_area_cached *control)
{
@@ -270,8 +258,6 @@ static bool __nested_vmcb_check_controls(struct kvm_vcpu *vcpu,
IOPM_SIZE)))
return false;

- if (CC(!nested_svm_check_tlb_ctl(vcpu, control->tlb_ctl)))
- return false;

return true;
}
diff --git a/block/ioctl.c b/block/ioctl.c
index ebe4a2653622..47567ba1185a 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -20,8 +20,6 @@ static int blkpg_do_ioctl(struct block_device *bdev,
struct blkpg_partition p;
sector_t start, length;

- if (disk->flags & GENHD_FL_NO_PART)
- return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (copy_from_user(&p, upart, sizeof(struct blkpg_partition)))
diff --git a/block/partitions/core.c b/block/partitions/core.c
index b8112f52d388..3927f4283f6b 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -453,6 +453,11 @@ int bdev_add_partition(struct gendisk *disk, int partno, sector_t start,
goto out;
}

+ if (disk->flags & GENHD_FL_NO_PART) {
+ ret = -EINVAL;
+ goto out;
+ }
+
if (partition_overlaps(disk, start, length, -1)) {
ret = -EBUSY;
goto out;
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 5dc9ccdd5a51..c73d1359b9d4 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -290,6 +290,7 @@ static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
}

if (!strcmp(q->cra_driver_name, alg->cra_name) ||
+ !strcmp(q->cra_driver_name, alg->cra_driver_name) ||
!strcmp(q->cra_name, alg->cra_driver_name))
goto err;
}
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index c50139207794..9c5a5f4dba5a 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -579,7 +579,7 @@ bool dev_pm_skip_resume(struct device *dev)
}

/**
- * device_resume_noirq - Execute a "noirq resume" callback for given device.
+ * __device_resume_noirq - Execute a "noirq resume" callback for given device.
* @dev: Device to handle.
* @state: PM transition of the system being carried out.
* @async: If true, the device is being resumed asynchronously.
@@ -587,7 +587,7 @@ bool dev_pm_skip_resume(struct device *dev)
* The driver of @dev will not receive interrupts while this function is being
* executed.
*/
-static int device_resume_noirq(struct device *dev, pm_message_t state, bool async)
+static void __device_resume_noirq(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
const char *info = NULL;
@@ -655,7 +655,13 @@ static int device_resume_noirq(struct device *dev, pm_message_t state, bool asyn
Out:
complete_all(&dev->power.completion);
TRACE_RESUME(error);
- return error;
+
+ if (error) {
+ suspend_stats.failed_resume_noirq++;
+ dpm_save_failed_step(SUSPEND_RESUME_NOIRQ);
+ dpm_save_failed_dev(dev_name(dev));
+ pm_dev_err(dev, state, async ? " async noirq" : " noirq", error);
+ }
}

static bool is_async(struct device *dev)
@@ -668,27 +674,35 @@ static bool dpm_async_fn(struct device *dev, async_func_t func)
{
reinit_completion(&dev->power.completion);

- if (is_async(dev)) {
- get_device(dev);
- async_schedule_dev(func, dev);
+ if (!is_async(dev))
+ return false;
+
+ get_device(dev);
+
+ if (async_schedule_dev_nocall(func, dev))
return true;
- }
+
+ put_device(dev);

return false;
}

static void async_resume_noirq(void *data, async_cookie_t cookie)
{
- struct device *dev = (struct device *)data;
- int error;
-
- error = device_resume_noirq(dev, pm_transition, true);
- if (error)
- pm_dev_err(dev, pm_transition, " async", error);
+ struct device *dev = data;

+ __device_resume_noirq(dev, pm_transition, true);
put_device(dev);
}

+static void device_resume_noirq(struct device *dev)
+{
+ if (dpm_async_fn(dev, async_resume_noirq))
+ return;
+
+ __device_resume_noirq(dev, pm_transition, false);
+}
+
static void dpm_noirq_resume_devices(pm_message_t state)
{
struct device *dev;
@@ -698,14 +712,6 @@ static void dpm_noirq_resume_devices(pm_message_t state)
mutex_lock(&dpm_list_mtx);
pm_transition = state;

- /*
- * Advanced the async threads upfront,
- * in case the starting of async threads is
- * delayed by non-async resuming devices.
- */
- list_for_each_entry(dev, &dpm_noirq_list, power.entry)
- dpm_async_fn(dev, async_resume_noirq);
-
while (!list_empty(&dpm_noirq_list)) {
dev = to_device(dpm_noirq_list.next);
get_device(dev);
@@ -713,17 +719,7 @@ static void dpm_noirq_resume_devices(pm_message_t state)

mutex_unlock(&dpm_list_mtx);

- if (!is_async(dev)) {
- int error;
-
- error = device_resume_noirq(dev, state, false);
- if (error) {
- suspend_stats.failed_resume_noirq++;
- dpm_save_failed_step(SUSPEND_RESUME_NOIRQ);
- dpm_save_failed_dev(dev_name(dev));
- pm_dev_err(dev, state, " noirq", error);
- }
- }
+ device_resume_noirq(dev);

put_device(dev);

@@ -751,14 +747,14 @@ void dpm_resume_noirq(pm_message_t state)
}

/**
- * device_resume_early - Execute an "early resume" callback for given device.
+ * __device_resume_early - Execute an "early resume" callback for given device.
* @dev: Device to handle.
* @state: PM transition of the system being carried out.
* @async: If true, the device is being resumed asynchronously.
*
* Runtime PM is disabled for @dev while this function is being executed.
*/
-static int device_resume_early(struct device *dev, pm_message_t state, bool async)
+static void __device_resume_early(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
const char *info = NULL;
@@ -811,21 +807,31 @@ static int device_resume_early(struct device *dev, pm_message_t state, bool asyn

pm_runtime_enable(dev);
complete_all(&dev->power.completion);
- return error;
+
+ if (error) {
+ suspend_stats.failed_resume_early++;
+ dpm_save_failed_step(SUSPEND_RESUME_EARLY);
+ dpm_save_failed_dev(dev_name(dev));
+ pm_dev_err(dev, state, async ? " async early" : " early", error);
+ }
}

static void async_resume_early(void *data, async_cookie_t cookie)
{
- struct device *dev = (struct device *)data;
- int error;
-
- error = device_resume_early(dev, pm_transition, true);
- if (error)
- pm_dev_err(dev, pm_transition, " async", error);
+ struct device *dev = data;

+ __device_resume_early(dev, pm_transition, true);
put_device(dev);
}

+static void device_resume_early(struct device *dev)
+{
+ if (dpm_async_fn(dev, async_resume_early))
+ return;
+
+ __device_resume_early(dev, pm_transition, false);
+}
+
/**
* dpm_resume_early - Execute "early resume" callbacks for all devices.
* @state: PM transition of the system being carried out.
@@ -839,14 +845,6 @@ void dpm_resume_early(pm_message_t state)
mutex_lock(&dpm_list_mtx);
pm_transition = state;

- /*
- * Advanced the async threads upfront,
- * in case the starting of async threads is
- * delayed by non-async resuming devices.
- */
- list_for_each_entry(dev, &dpm_late_early_list, power.entry)
- dpm_async_fn(dev, async_resume_early);
-
while (!list_empty(&dpm_late_early_list)) {
dev = to_device(dpm_late_early_list.next);
get_device(dev);
@@ -854,17 +852,7 @@ void dpm_resume_early(pm_message_t state)

mutex_unlock(&dpm_list_mtx);

- if (!is_async(dev)) {
- int error;
-
- error = device_resume_early(dev, state, false);
- if (error) {
- suspend_stats.failed_resume_early++;
- dpm_save_failed_step(SUSPEND_RESUME_EARLY);
- dpm_save_failed_dev(dev_name(dev));
- pm_dev_err(dev, state, " early", error);
- }
- }
+ device_resume_early(dev);

put_device(dev);

@@ -888,12 +876,12 @@ void dpm_resume_start(pm_message_t state)
EXPORT_SYMBOL_GPL(dpm_resume_start);

/**
- * device_resume - Execute "resume" callbacks for given device.
+ * __device_resume - Execute "resume" callbacks for given device.
* @dev: Device to handle.
* @state: PM transition of the system being carried out.
* @async: If true, the device is being resumed asynchronously.
*/
-static int device_resume(struct device *dev, pm_message_t state, bool async)
+static void __device_resume(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
const char *info = NULL;
@@ -975,20 +963,30 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)

TRACE_RESUME(error);

- return error;
+ if (error) {
+ suspend_stats.failed_resume++;
+ dpm_save_failed_step(SUSPEND_RESUME);
+ dpm_save_failed_dev(dev_name(dev));
+ pm_dev_err(dev, state, async ? " async" : "", error);
+ }
}

static void async_resume(void *data, async_cookie_t cookie)
{
- struct device *dev = (struct device *)data;
- int error;
+ struct device *dev = data;

- error = device_resume(dev, pm_transition, true);
- if (error)
- pm_dev_err(dev, pm_transition, " async", error);
+ __device_resume(dev, pm_transition, true);
put_device(dev);
}

+static void device_resume(struct device *dev)
+{
+ if (dpm_async_fn(dev, async_resume))
+ return;
+
+ __device_resume(dev, pm_transition, false);
+}
+
/**
* dpm_resume - Execute "resume" callbacks for non-sysdev devices.
* @state: PM transition of the system being carried out.
@@ -1008,27 +1006,17 @@ void dpm_resume(pm_message_t state)
pm_transition = state;
async_error = 0;

- list_for_each_entry(dev, &dpm_suspended_list, power.entry)
- dpm_async_fn(dev, async_resume);
-
while (!list_empty(&dpm_suspended_list)) {
dev = to_device(dpm_suspended_list.next);
+
get_device(dev);
- if (!is_async(dev)) {
- int error;

- mutex_unlock(&dpm_list_mtx);
+ mutex_unlock(&dpm_list_mtx);
+
+ device_resume(dev);

- error = device_resume(dev, state, false);
- if (error) {
- suspend_stats.failed_resume++;
- dpm_save_failed_step(SUSPEND_RESUME);
- dpm_save_failed_dev(dev_name(dev));
- pm_dev_err(dev, state, "", error);
- }
+ mutex_lock(&dpm_list_mtx);

- mutex_lock(&dpm_list_mtx);
- }
if (!list_empty(&dev->power.entry))
list_move_tail(&dev->power.entry, &dpm_prepared_list);

@@ -1269,7 +1257,7 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a

static void async_suspend_noirq(void *data, async_cookie_t cookie)
{
- struct device *dev = (struct device *)data;
+ struct device *dev = data;
int error;

error = __device_suspend_noirq(dev, pm_transition, true);
@@ -1450,7 +1438,7 @@ static int __device_suspend_late(struct device *dev, pm_message_t state, bool as

static void async_suspend_late(void *data, async_cookie_t cookie)
{
- struct device *dev = (struct device *)data;
+ struct device *dev = data;
int error;

error = __device_suspend_late(dev, pm_transition, true);
@@ -1727,7 +1715,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)

static void async_suspend(void *data, async_cookie_t cookie)
{
- struct device *dev = (struct device *)data;
+ struct device *dev = data;
int error;

error = __device_suspend(dev, pm_transition, true);
diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c
index 72b7a92337b1..cd6e559648b2 100644
--- a/drivers/base/power/trace.c
+++ b/drivers/base/power/trace.c
@@ -120,7 +120,7 @@ static unsigned int read_magic_time(void)
struct rtc_time time;
unsigned int val;

- if (mc146818_get_time(&time) < 0) {
+ if (mc146818_get_time(&time, 1000) < 0) {
pr_err("Unable to read current time from RTC\n");
return 0;
}
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 8037aaefeb2e..9a53165de4ce 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -494,7 +494,7 @@ static int __sock_xmit(struct nbd_device *nbd, struct socket *sock, int send,
struct iov_iter *iter, int msg_flags, int *sent)
{
int result;
- struct msghdr msg;
+ struct msghdr msg = { };
unsigned int noreclaim_flag;

if (unlikely(!sock)) {
@@ -509,10 +509,6 @@ static int __sock_xmit(struct nbd_device *nbd, struct socket *sock, int send,
noreclaim_flag = memalloc_noreclaim_save();
do {
sock->sk->sk_allocation = GFP_NOIO | __GFP_MEMALLOC;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
msg.msg_flags = msg_flags | MSG_NOSIGNAL;

if (send)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index afc92869cba4..f58ca9ce3503 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3453,14 +3453,15 @@ static bool rbd_lock_add_request(struct rbd_img_request *img_req)
static void rbd_lock_del_request(struct rbd_img_request *img_req)
{
struct rbd_device *rbd_dev = img_req->rbd_dev;
- bool need_wakeup;
+ bool need_wakeup = false;

lockdep_assert_held(&rbd_dev->lock_rwsem);
spin_lock(&rbd_dev->lock_lists_lock);
- rbd_assert(!list_empty(&img_req->lock_item));
- list_del_init(&img_req->lock_item);
- need_wakeup = (rbd_dev->lock_state == RBD_LOCK_STATE_RELEASING &&
- list_empty(&rbd_dev->running_list));
+ if (!list_empty(&img_req->lock_item)) {
+ list_del_init(&img_req->lock_item);
+ need_wakeup = (rbd_dev->lock_state == RBD_LOCK_STATE_RELEASING &&
+ list_empty(&rbd_dev->running_list));
+ }
spin_unlock(&rbd_dev->lock_lists_lock);
if (need_wakeup)
complete(&rbd_dev->releasing_wait);
@@ -3843,14 +3844,19 @@ static void wake_lock_waiters(struct rbd_device *rbd_dev, int result)
return;
}

- list_for_each_entry(img_req, &rbd_dev->acquiring_list, lock_item) {
+ while (!list_empty(&rbd_dev->acquiring_list)) {
+ img_req = list_first_entry(&rbd_dev->acquiring_list,
+ struct rbd_img_request, lock_item);
mutex_lock(&img_req->state_mutex);
rbd_assert(img_req->state == RBD_IMG_EXCLUSIVE_LOCK);
+ if (!result)
+ list_move_tail(&img_req->lock_item,
+ &rbd_dev->running_list);
+ else
+ list_del_init(&img_req->lock_item);
rbd_img_schedule(img_req, result);
mutex_unlock(&img_req->state_mutex);
}
-
- list_splice_tail_init(&rbd_dev->acquiring_list, &rbd_dev->running_list);
}

static bool locker_equal(const struct ceph_locker *lhs,
diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c
index edd153dda40c..34e0ba6f52d0 100644
--- a/drivers/bus/mhi/ep/main.c
+++ b/drivers/bus/mhi/ep/main.c
@@ -71,45 +71,77 @@ static int mhi_ep_send_event(struct mhi_ep_cntrl *mhi_cntrl, u32 ring_idx,
static int mhi_ep_send_completion_event(struct mhi_ep_cntrl *mhi_cntrl, struct mhi_ep_ring *ring,
struct mhi_ring_element *tre, u32 len, enum mhi_ev_ccs code)
{
- struct mhi_ring_element event = {};
+ struct mhi_ring_element *event;
+ int ret;
+
+ event = kzalloc(sizeof(struct mhi_ring_element), GFP_KERNEL);
+ if (!event)
+ return -ENOMEM;

- event.ptr = cpu_to_le64(ring->rbase + ring->rd_offset * sizeof(*tre));
- event.dword[0] = MHI_TRE_EV_DWORD0(code, len);
- event.dword[1] = MHI_TRE_EV_DWORD1(ring->ch_id, MHI_PKT_TYPE_TX_EVENT);
+ event->ptr = cpu_to_le64(ring->rbase + ring->rd_offset * sizeof(*tre));
+ event->dword[0] = MHI_TRE_EV_DWORD0(code, len);
+ event->dword[1] = MHI_TRE_EV_DWORD1(ring->ch_id, MHI_PKT_TYPE_TX_EVENT);

- return mhi_ep_send_event(mhi_cntrl, ring->er_index, &event, MHI_TRE_DATA_GET_BEI(tre));
+ ret = mhi_ep_send_event(mhi_cntrl, ring->er_index, event, MHI_TRE_DATA_GET_BEI(tre));
+ kfree(event);
+
+ return ret;
}

int mhi_ep_send_state_change_event(struct mhi_ep_cntrl *mhi_cntrl, enum mhi_state state)
{
- struct mhi_ring_element event = {};
+ struct mhi_ring_element *event;
+ int ret;
+
+ event = kzalloc(sizeof(struct mhi_ring_element), GFP_KERNEL);
+ if (!event)
+ return -ENOMEM;

- event.dword[0] = MHI_SC_EV_DWORD0(state);
- event.dword[1] = MHI_SC_EV_DWORD1(MHI_PKT_TYPE_STATE_CHANGE_EVENT);
+ event->dword[0] = MHI_SC_EV_DWORD0(state);
+ event->dword[1] = MHI_SC_EV_DWORD1(MHI_PKT_TYPE_STATE_CHANGE_EVENT);

- return mhi_ep_send_event(mhi_cntrl, 0, &event, 0);
+ ret = mhi_ep_send_event(mhi_cntrl, 0, event, 0);
+ kfree(event);
+
+ return ret;
}

int mhi_ep_send_ee_event(struct mhi_ep_cntrl *mhi_cntrl, enum mhi_ee_type exec_env)
{
- struct mhi_ring_element event = {};
+ struct mhi_ring_element *event;
+ int ret;
+
+ event = kzalloc(sizeof(struct mhi_ring_element), GFP_KERNEL);
+ if (!event)
+ return -ENOMEM;

- event.dword[0] = MHI_EE_EV_DWORD0(exec_env);
- event.dword[1] = MHI_SC_EV_DWORD1(MHI_PKT_TYPE_EE_EVENT);
+ event->dword[0] = MHI_EE_EV_DWORD0(exec_env);
+ event->dword[1] = MHI_SC_EV_DWORD1(MHI_PKT_TYPE_EE_EVENT);

- return mhi_ep_send_event(mhi_cntrl, 0, &event, 0);
+ ret = mhi_ep_send_event(mhi_cntrl, 0, event, 0);
+ kfree(event);
+
+ return ret;
}

static int mhi_ep_send_cmd_comp_event(struct mhi_ep_cntrl *mhi_cntrl, enum mhi_ev_ccs code)
{
struct mhi_ep_ring *ring = &mhi_cntrl->mhi_cmd->ring;
- struct mhi_ring_element event = {};
+ struct mhi_ring_element *event;
+ int ret;
+
+ event = kzalloc(sizeof(struct mhi_ring_element), GFP_KERNEL);
+ if (!event)
+ return -ENOMEM;

- event.ptr = cpu_to_le64(ring->rbase + ring->rd_offset * sizeof(struct mhi_ring_element));
- event.dword[0] = MHI_CC_EV_DWORD0(code);
- event.dword[1] = MHI_CC_EV_DWORD1(MHI_PKT_TYPE_CMD_COMPLETION_EVENT);
+ event->ptr = cpu_to_le64(ring->rbase + ring->rd_offset * sizeof(struct mhi_ring_element));
+ event->dword[0] = MHI_CC_EV_DWORD0(code);
+ event->dword[1] = MHI_CC_EV_DWORD1(MHI_PKT_TYPE_CMD_COMPLETION_EVENT);

- return mhi_ep_send_event(mhi_cntrl, 0, &event, 0);
+ ret = mhi_ep_send_event(mhi_cntrl, 0, event, 0);
+ kfree(event);
+
+ return ret;
}

static int mhi_ep_process_cmd_ring(struct mhi_ep_ring *ring, struct mhi_ring_element *el)
diff --git a/drivers/bus/mhi/host/main.c b/drivers/bus/mhi/host/main.c
index 0c3a009ed9bb..8378c3319cd5 100644
--- a/drivers/bus/mhi/host/main.c
+++ b/drivers/bus/mhi/host/main.c
@@ -268,7 +268,8 @@ static void mhi_del_ring_element(struct mhi_controller *mhi_cntrl,

static bool is_valid_ring_ptr(struct mhi_ring *ring, dma_addr_t addr)
{
- return addr >= ring->iommu_base && addr < ring->iommu_base + ring->len;
+ return addr >= ring->iommu_base && addr < ring->iommu_base + ring->len &&
+ !(addr & (sizeof(struct mhi_ring_element) - 1));
}

int mhi_destroy_device(struct device *dev, void *data)
@@ -642,6 +643,8 @@ static int parse_xfer_event(struct mhi_controller *mhi_cntrl,
mhi_del_ring_element(mhi_cntrl, tre_ring);
local_rp = tre_ring->rp;

+ read_unlock_bh(&mhi_chan->lock);
+
/* notify client */
mhi_chan->xfer_cb(mhi_chan->mhi_dev, &result);

@@ -667,6 +670,8 @@ static int parse_xfer_event(struct mhi_controller *mhi_cntrl,
kfree(buf_info->cb_buf);
}
}
+
+ read_lock_bh(&mhi_chan->lock);
}
break;
} /* CC_EOT */
@@ -1119,17 +1124,15 @@ static int mhi_queue(struct mhi_device *mhi_dev, struct mhi_buf_info *buf_info,
if (unlikely(MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state)))
return -EIO;

- read_lock_irqsave(&mhi_cntrl->pm_lock, flags);
-
ret = mhi_is_ring_full(mhi_cntrl, tre_ring);
- if (unlikely(ret)) {
- ret = -EAGAIN;
- goto exit_unlock;
- }
+ if (unlikely(ret))
+ return -EAGAIN;

ret = mhi_gen_tre(mhi_cntrl, mhi_chan, buf_info, mflags);
if (unlikely(ret))
- goto exit_unlock;
+ return ret;
+
+ read_lock_irqsave(&mhi_cntrl->pm_lock, flags);

/* Packet is queued, take a usage ref to exit M3 if necessary
* for host->device buffer, balanced put is done on buffer completion
@@ -1149,7 +1152,6 @@ static int mhi_queue(struct mhi_device *mhi_dev, struct mhi_buf_info *buf_info,
if (dir == DMA_FROM_DEVICE)
mhi_cntrl->runtime_put(mhi_cntrl);

-exit_unlock:
read_unlock_irqrestore(&mhi_cntrl->pm_lock, flags);

return ret;
@@ -1201,6 +1203,9 @@ int mhi_gen_tre(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
int eot, eob, chain, bei;
int ret;

+ /* Protect accesses for reading and incrementing WP */
+ write_lock_bh(&mhi_chan->lock);
+
buf_ring = &mhi_chan->buf_ring;
tre_ring = &mhi_chan->tre_ring;

@@ -1218,8 +1223,10 @@ int mhi_gen_tre(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,

if (!info->pre_mapped) {
ret = mhi_cntrl->map_single(mhi_cntrl, buf_info);
- if (ret)
+ if (ret) {
+ write_unlock_bh(&mhi_chan->lock);
return ret;
+ }
}

eob = !!(flags & MHI_EOB);
@@ -1236,6 +1243,8 @@ int mhi_gen_tre(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
mhi_add_ring_element(mhi_cntrl, tre_ring);
mhi_add_ring_element(mhi_cntrl, buf_ring);

+ write_unlock_bh(&mhi_chan->lock);
+
return 0;
}

diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 8f31f9d81030..c319f9937709 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -24,10 +24,13 @@
#include <linux/random.h>
#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/string.h>
#include <linux/uaccess.h>

#define RNG_MODULE_NAME "hw_random"

+#define RNG_BUFFER_SIZE (SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES)
+
static struct hwrng *current_rng;
/* the current rng has been explicitly chosen by user via sysfs */
static int cur_rng_set_by_user;
@@ -59,7 +62,7 @@ static inline int rng_get_data(struct hwrng *rng, u8 *buffer, size_t size,

static size_t rng_buffer_size(void)
{
- return SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES;
+ return RNG_BUFFER_SIZE;
}

static void add_early_randomness(struct hwrng *rng)
@@ -211,6 +214,7 @@ static inline int rng_get_data(struct hwrng *rng, u8 *buffer, size_t size,
static ssize_t rng_dev_read(struct file *filp, char __user *buf,
size_t size, loff_t *offp)
{
+ u8 buffer[RNG_BUFFER_SIZE];
ssize_t ret = 0;
int err = 0;
int bytes_read, len;
@@ -238,34 +242,37 @@ static ssize_t rng_dev_read(struct file *filp, char __user *buf,
if (bytes_read < 0) {
err = bytes_read;
goto out_unlock_reading;
+ } else if (bytes_read == 0 &&
+ (filp->f_flags & O_NONBLOCK)) {
+ err = -EAGAIN;
+ goto out_unlock_reading;
}
+
data_avail = bytes_read;
}

- if (!data_avail) {
- if (filp->f_flags & O_NONBLOCK) {
- err = -EAGAIN;
- goto out_unlock_reading;
- }
- } else {
- len = data_avail;
+ len = data_avail;
+ if (len) {
if (len > size)
len = size;

data_avail -= len;

- if (copy_to_user(buf + ret, rng_buffer + data_avail,
- len)) {
+ memcpy(buffer, rng_buffer + data_avail, len);
+ }
+ mutex_unlock(&reading_mutex);
+ put_rng(rng);
+
+ if (len) {
+ if (copy_to_user(buf + ret, buffer, len)) {
err = -EFAULT;
- goto out_unlock_reading;
+ goto out;
}

size -= len;
ret += len;
}

- mutex_unlock(&reading_mutex);
- put_rng(rng);

if (need_resched())
schedule_timeout_interruptible(1);
@@ -276,6 +283,7 @@ static ssize_t rng_dev_read(struct file *filp, char __user *buf,
}
}
out:
+ memzero_explicit(buffer, sizeof(buffer));
return ret ? : err;

out_unlock_reading:
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index fbe3a4098743..abdd26f7d04c 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -493,6 +493,30 @@ static inline int intel_pstate_get_cppc_guaranteed(int cpu)
}
#endif /* CONFIG_ACPI_CPPC_LIB */

+static int intel_pstate_freq_to_hwp_rel(struct cpudata *cpu, int freq,
+ unsigned int relation)
+{
+ if (freq == cpu->pstate.turbo_freq)
+ return cpu->pstate.turbo_pstate;
+
+ if (freq == cpu->pstate.max_freq)
+ return cpu->pstate.max_pstate;
+
+ switch (relation) {
+ case CPUFREQ_RELATION_H:
+ return freq / cpu->pstate.scaling;
+ case CPUFREQ_RELATION_C:
+ return DIV_ROUND_CLOSEST(freq, cpu->pstate.scaling);
+ }
+
+ return DIV_ROUND_UP(freq, cpu->pstate.scaling);
+}
+
+static int intel_pstate_freq_to_hwp(struct cpudata *cpu, int freq)
+{
+ return intel_pstate_freq_to_hwp_rel(cpu, freq, CPUFREQ_RELATION_L);
+}
+
/**
* intel_pstate_hybrid_hwp_adjust - Calibrate HWP performance levels.
* @cpu: Target CPU.
@@ -510,6 +534,7 @@ static void intel_pstate_hybrid_hwp_adjust(struct cpudata *cpu)
int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling;
int perf_ctl_turbo = pstate_funcs.get_turbo(cpu->cpu);
int scaling = cpu->pstate.scaling;
+ int freq;

pr_debug("CPU%d: perf_ctl_max_phys = %d\n", cpu->cpu, perf_ctl_max_phys);
pr_debug("CPU%d: perf_ctl_turbo = %d\n", cpu->cpu, perf_ctl_turbo);
@@ -523,16 +548,16 @@ static void intel_pstate_hybrid_hwp_adjust(struct cpudata *cpu)
cpu->pstate.max_freq = rounddown(cpu->pstate.max_pstate * scaling,
perf_ctl_scaling);

- cpu->pstate.max_pstate_physical =
- DIV_ROUND_UP(perf_ctl_max_phys * perf_ctl_scaling,
- scaling);
+ freq = perf_ctl_max_phys * perf_ctl_scaling;
+ cpu->pstate.max_pstate_physical = intel_pstate_freq_to_hwp(cpu, freq);

- cpu->pstate.min_freq = cpu->pstate.min_pstate * perf_ctl_scaling;
+ freq = cpu->pstate.min_pstate * perf_ctl_scaling;
+ cpu->pstate.min_freq = freq;
/*
* Cast the min P-state value retrieved via pstate_funcs.get_min() to
* the effective range of HWP performance levels.
*/
- cpu->pstate.min_pstate = DIV_ROUND_UP(cpu->pstate.min_freq, scaling);
+ cpu->pstate.min_pstate = intel_pstate_freq_to_hwp(cpu, freq);
}

static inline void update_turbo_state(void)
@@ -2493,13 +2518,12 @@ static void intel_pstate_update_perf_limits(struct cpudata *cpu,
* abstract values to represent performance rather than pure ratios.
*/
if (hwp_active && cpu->pstate.scaling != perf_ctl_scaling) {
- int scaling = cpu->pstate.scaling;
int freq;

freq = max_policy_perf * perf_ctl_scaling;
- max_policy_perf = DIV_ROUND_UP(freq, scaling);
+ max_policy_perf = intel_pstate_freq_to_hwp(cpu, freq);
freq = min_policy_perf * perf_ctl_scaling;
- min_policy_perf = DIV_ROUND_UP(freq, scaling);
+ min_policy_perf = intel_pstate_freq_to_hwp(cpu, freq);
}

pr_debug("cpu:%d min_policy_perf:%d max_policy_perf:%d\n",
@@ -2873,18 +2897,7 @@ static int intel_cpufreq_target(struct cpufreq_policy *policy,

cpufreq_freq_transition_begin(policy, &freqs);

- switch (relation) {
- case CPUFREQ_RELATION_L:
- target_pstate = DIV_ROUND_UP(freqs.new, cpu->pstate.scaling);
- break;
- case CPUFREQ_RELATION_H:
- target_pstate = freqs.new / cpu->pstate.scaling;
- break;
- default:
- target_pstate = DIV_ROUND_CLOSEST(freqs.new, cpu->pstate.scaling);
- break;
- }
-
+ target_pstate = intel_pstate_freq_to_hwp_rel(cpu, freqs.new, relation);
target_pstate = intel_cpufreq_update_pstate(policy, target_pstate, false);

freqs.new = target_pstate * cpu->pstate.scaling;
@@ -2902,7 +2915,7 @@ static unsigned int intel_cpufreq_fast_switch(struct cpufreq_policy *policy,

update_turbo_state();

- target_pstate = DIV_ROUND_UP(target_freq, cpu->pstate.scaling);
+ target_pstate = intel_pstate_freq_to_hwp(cpu, target_freq);

target_pstate = intel_cpufreq_update_pstate(policy, target_pstate, true);

diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index 2f7187dbfa2d..5b7d848a6f01 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -450,7 +450,7 @@ static int alloc_hpa(struct cxl_region *cxlr, resource_size_t size)
struct cxl_root_decoder *cxlrd = to_cxl_root_decoder(cxlr->dev.parent);
struct cxl_region_params *p = &cxlr->params;
struct resource *res;
- u32 remainder = 0;
+ u64 remainder = 0;

lockdep_assert_held_write(&cxl_region_rwsem);

@@ -470,7 +470,7 @@ static int alloc_hpa(struct cxl_region *cxlr, resource_size_t size)
(cxlr->mode == CXL_DECODER_PMEM && uuid_is_null(&p->uuid)))
return -ENXIO;

- div_u64_rem(size, SZ_256M * p->interleave_ways, &remainder);
+ div64_u64_rem(size, (u64)SZ_256M * p->interleave_ways, &remainder);
if (remainder)
return -EINVAL;

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index fe6644f99887..2951a87ccb97 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -1687,7 +1687,7 @@ static ssize_t trans_stat_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct devfreq *df = to_devfreq(dev);
- ssize_t len;
+ ssize_t len = 0;
int i, j;
unsigned int max_state;

@@ -1696,7 +1696,7 @@ static ssize_t trans_stat_show(struct device *dev,
max_state = df->max_state;

if (max_state == 0)
- return sprintf(buf, "Not Supported.\n");
+ return scnprintf(buf, PAGE_SIZE, "Not Supported.\n");

mutex_lock(&df->lock);
if (!df->stop_polling &&
@@ -1706,31 +1706,52 @@ static ssize_t trans_stat_show(struct device *dev,
}
mutex_unlock(&df->lock);

- len = sprintf(buf, " From : To\n");
- len += sprintf(buf + len, " :");
- for (i = 0; i < max_state; i++)
- len += sprintf(buf + len, "%10lu",
- df->freq_table[i]);
+ len += scnprintf(buf + len, PAGE_SIZE - len, " From : To\n");
+ len += scnprintf(buf + len, PAGE_SIZE - len, " :");
+ for (i = 0; i < max_state; i++) {
+ if (len >= PAGE_SIZE - 1)
+ break;
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%10lu",
+ df->freq_table[i]);
+ }
+ if (len >= PAGE_SIZE - 1)
+ return PAGE_SIZE - 1;

- len += sprintf(buf + len, " time(ms)\n");
+ len += scnprintf(buf + len, PAGE_SIZE - len, " time(ms)\n");

for (i = 0; i < max_state; i++) {
+ if (len >= PAGE_SIZE - 1)
+ break;
if (df->freq_table[i] == df->previous_freq)
- len += sprintf(buf + len, "*");
+ len += scnprintf(buf + len, PAGE_SIZE - len, "*");
else
- len += sprintf(buf + len, " ");
+ len += scnprintf(buf + len, PAGE_SIZE - len, " ");
+ if (len >= PAGE_SIZE - 1)
+ break;
+
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%10lu:",
+ df->freq_table[i]);
+ for (j = 0; j < max_state; j++) {
+ if (len >= PAGE_SIZE - 1)
+ break;
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%10u",
+ df->stats.trans_table[(i * max_state) + j]);
+ }
+ if (len >= PAGE_SIZE - 1)
+ break;
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%10llu\n", (u64)
+ jiffies64_to_msecs(df->stats.time_in_state[i]));
+ }

- len += sprintf(buf + len, "%10lu:", df->freq_table[i]);
- for (j = 0; j < max_state; j++)
- len += sprintf(buf + len, "%10u",
- df->stats.trans_table[(i * max_state) + j]);
+ if (len < PAGE_SIZE - 1)
+ len += scnprintf(buf + len, PAGE_SIZE - len, "Total transition : %u\n",
+ df->stats.total_trans);

- len += sprintf(buf + len, "%10llu\n", (u64)
- jiffies64_to_msecs(df->stats.time_in_state[i]));
+ if (len >= PAGE_SIZE - 1) {
+ pr_warn_once("devfreq transition table exceeds PAGE_SIZE. Disabling\n");
+ return -EFBIG;
}

- len += sprintf(buf + len, "Total transition : %u\n",
- df->stats.total_trans);
return len;
}

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 8a6e6b60d66f..892e8389232e 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -1103,6 +1103,9 @@ EXPORT_SYMBOL_GPL(dma_async_device_channel_register);
static void __dma_async_device_channel_unregister(struct dma_device *device,
struct dma_chan *chan)
{
+ if (chan->local == NULL)
+ return;
+
WARN_ONCE(!device->device_release && chan->client_count,
"%s called while %d clients hold a reference\n",
__func__, chan->client_count);
diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h
index a1c0154c31c6..4ac72754c255 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -244,6 +244,7 @@ void shmem_fetch_notification(struct scmi_shared_mem __iomem *shmem,
void shmem_clear_channel(struct scmi_shared_mem __iomem *shmem);
bool shmem_poll_done(struct scmi_shared_mem __iomem *shmem,
struct scmi_xfer *xfer);
+bool shmem_channel_free(struct scmi_shared_mem __iomem *shmem);

/* declarations for message passing transports */
struct scmi_msg_payld;
diff --git a/drivers/firmware/arm_scmi/mailbox.c b/drivers/firmware/arm_scmi/mailbox.c
index 25d31dfdad15..81c902672a30 100644
--- a/drivers/firmware/arm_scmi/mailbox.c
+++ b/drivers/firmware/arm_scmi/mailbox.c
@@ -43,6 +43,20 @@ static void rx_callback(struct mbox_client *cl, void *m)
{
struct scmi_mailbox *smbox = client_to_scmi_mailbox(cl);

+ /*
+ * An A2P IRQ is NOT valid when received while the platform still has
+ * the ownership of the channel, because the platform at first releases
+ * the SMT channel and then sends the completion interrupt.
+ *
+ * This addresses a possible race condition in which a spurious IRQ from
+ * a previous timed-out reply which arrived late could be wrongly
+ * associated with the next pending transaction.
+ */
+ if (cl->knows_txdone && !shmem_channel_free(smbox->shmem)) {
+ dev_warn(smbox->cinfo->dev, "Ignoring spurious A2P IRQ !\n");
+ return;
+ }
+
scmi_rx_callback(smbox->cinfo, shmem_read_header(smbox->shmem), NULL);
}

diff --git a/drivers/firmware/arm_scmi/shmem.c b/drivers/firmware/arm_scmi/shmem.c
index 87b4f4d35f06..517d52fb3bcb 100644
--- a/drivers/firmware/arm_scmi/shmem.c
+++ b/drivers/firmware/arm_scmi/shmem.c
@@ -122,3 +122,9 @@ bool shmem_poll_done(struct scmi_shared_mem __iomem *shmem,
(SCMI_SHMEM_CHAN_STAT_CHANNEL_ERROR |
SCMI_SHMEM_CHAN_STAT_CHANNEL_FREE);
}
+
+bool shmem_channel_free(struct scmi_shared_mem __iomem *shmem)
+{
+ return (ioread32(&shmem->channel_status) &
+ SCMI_SHMEM_CHAN_STAT_CHANNEL_FREE);
+}
diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index 8d722e026e9c..c2857ed0c78a 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -318,20 +318,27 @@ static int sprd_eic_irq_set_type(struct irq_data *data, unsigned int flow_type)
switch (flow_type) {
case IRQ_TYPE_LEVEL_HIGH:
sprd_eic_update(chip, offset, SPRD_EIC_DBNC_IEV, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_DBNC_IC, 1);
break;
case IRQ_TYPE_LEVEL_LOW:
sprd_eic_update(chip, offset, SPRD_EIC_DBNC_IEV, 0);
+ sprd_eic_update(chip, offset, SPRD_EIC_DBNC_IC, 1);
break;
case IRQ_TYPE_EDGE_RISING:
case IRQ_TYPE_EDGE_FALLING:
case IRQ_TYPE_EDGE_BOTH:
state = sprd_eic_get(chip, offset);
- if (state)
+ if (state) {
sprd_eic_update(chip, offset,
SPRD_EIC_DBNC_IEV, 0);
- else
+ sprd_eic_update(chip, offset,
+ SPRD_EIC_DBNC_IC, 1);
+ } else {
sprd_eic_update(chip, offset,
SPRD_EIC_DBNC_IEV, 1);
+ sprd_eic_update(chip, offset,
+ SPRD_EIC_DBNC_IC, 1);
+ }
break;
default:
return -ENOTSUPP;
@@ -343,20 +350,27 @@ static int sprd_eic_irq_set_type(struct irq_data *data, unsigned int flow_type)
switch (flow_type) {
case IRQ_TYPE_LEVEL_HIGH:
sprd_eic_update(chip, offset, SPRD_EIC_LATCH_INTPOL, 0);
+ sprd_eic_update(chip, offset, SPRD_EIC_LATCH_INTCLR, 1);
break;
case IRQ_TYPE_LEVEL_LOW:
sprd_eic_update(chip, offset, SPRD_EIC_LATCH_INTPOL, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_LATCH_INTCLR, 1);
break;
case IRQ_TYPE_EDGE_RISING:
case IRQ_TYPE_EDGE_FALLING:
case IRQ_TYPE_EDGE_BOTH:
state = sprd_eic_get(chip, offset);
- if (state)
+ if (state) {
sprd_eic_update(chip, offset,
SPRD_EIC_LATCH_INTPOL, 0);
- else
+ sprd_eic_update(chip, offset,
+ SPRD_EIC_LATCH_INTCLR, 1);
+ } else {
sprd_eic_update(chip, offset,
SPRD_EIC_LATCH_INTPOL, 1);
+ sprd_eic_update(chip, offset,
+ SPRD_EIC_LATCH_INTCLR, 1);
+ }
break;
default:
return -ENOTSUPP;
@@ -370,29 +384,34 @@ static int sprd_eic_irq_set_type(struct irq_data *data, unsigned int flow_type)
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTPOL, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_EDGE_FALLING:
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTPOL, 0);
+ sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_EDGE_BOTH:
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTBOTH, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_LEVEL_HIGH:
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTMODE, 1);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTPOL, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_level_irq);
break;
case IRQ_TYPE_LEVEL_LOW:
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTMODE, 1);
sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTPOL, 0);
+ sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_level_irq);
break;
default:
@@ -405,29 +424,34 @@ static int sprd_eic_irq_set_type(struct irq_data *data, unsigned int flow_type)
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTPOL, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_EDGE_FALLING:
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTPOL, 0);
+ sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_EDGE_BOTH:
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTBOTH, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_LEVEL_HIGH:
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTMODE, 1);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTPOL, 1);
+ sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_level_irq);
break;
case IRQ_TYPE_LEVEL_LOW:
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTBOTH, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTMODE, 1);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTPOL, 0);
+ sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTCLR, 1);
irq_set_handler_locked(data, handle_level_irq);
break;
default:
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 787d47e667ad..33d73687e463 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -1626,6 +1626,20 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = {
.ignore_wake = "ELAN0415:00@9",
},
},
+ {
+ /*
+ * Spurious wakeups from TP_ATTN# pin
+ * Found in BIOS 0.35
+ * https://gitlab.freedesktop.org/drm/amd/-/issues/3073
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GPD"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "G1619-04"),
+ },
+ .driver_data = &(struct acpi_gpiolib_dmi_quirk) {
+ .ignore_wake = "PNP0C50:00@8",
+ },
+ },
{} /* Terminating entry */
};

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index a8e1f2cfe12d..b9983ca99eb7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -2202,8 +2202,6 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,

pci_wake_from_d3(pdev, TRUE);

- pci_wake_from_d3(pdev, TRUE);
-
/*
* For runpm implemented via BACO, PMFW will handle the
* timing for BACO in and out:
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 13e0b521e3db..f02e509d5fac 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6677,8 +6677,7 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
if (IS_ERR(mst_state))
return PTR_ERR(mst_state);

- if (!mst_state->pbn_div)
- mst_state->pbn_div = dm_mst_get_pbn_divider(aconnector->mst_port->dc_link);
+ mst_state->pbn_div = dm_mst_get_pbn_divider(aconnector->mst_port->dc_link);

if (!state->duplicated) {
int max_bpc = conn_state->max_requested_bpc;
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c
index e43b4d7dc60e..c8136a05a8d3 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c
@@ -131,30 +131,27 @@ static int dcn314_get_active_display_cnt_wa(
return display_count;
}

-static void dcn314_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *context, bool disable)
+static void dcn314_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *context,
+ bool safe_to_lower, bool disable)
{
struct dc *dc = clk_mgr_base->ctx->dc;
int i;

for (i = 0; i < dc->res_pool->pipe_count; ++i) {
- struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+ struct pipe_ctx *pipe = safe_to_lower
+ ? &context->res_ctx.pipe_ctx[i]
+ : &dc->current_state->res_ctx.pipe_ctx[i];

if (pipe->top_pipe || pipe->prev_odm_pipe)
continue;
if (pipe->stream && (pipe->stream->dpms_off || dc_is_virtual_signal(pipe->stream->signal))) {
- struct stream_encoder *stream_enc = pipe->stream_res.stream_enc;
-
if (disable) {
- if (stream_enc && stream_enc->funcs->disable_fifo)
- pipe->stream_res.stream_enc->funcs->disable_fifo(stream_enc);
+ if (pipe->stream_res.tg && pipe->stream_res.tg->funcs->immediate_disable_crtc)
+ pipe->stream_res.tg->funcs->immediate_disable_crtc(pipe->stream_res.tg);

- pipe->stream_res.tg->funcs->immediate_disable_crtc(pipe->stream_res.tg);
reset_sync_context_for_pipe(dc, context, i);
} else {
pipe->stream_res.tg->funcs->enable_crtc(pipe->stream_res.tg);
-
- if (stream_enc && stream_enc->funcs->enable_fifo)
- pipe->stream_res.stream_enc->funcs->enable_fifo(stream_enc);
}
}
}
@@ -254,11 +251,11 @@ void dcn314_update_clocks(struct clk_mgr *clk_mgr_base,
}

if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) {
- dcn314_disable_otg_wa(clk_mgr_base, context, true);
+ dcn314_disable_otg_wa(clk_mgr_base, context, safe_to_lower, true);

clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz;
dcn314_smu_set_dispclk(clk_mgr, clk_mgr_base->clks.dispclk_khz);
- dcn314_disable_otg_wa(clk_mgr_base, context, false);
+ dcn314_disable_otg_wa(clk_mgr_base, context, safe_to_lower, false);

update_dispclk = true;
}
diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
index 67287ad07226..e2f436dea565 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -818,6 +818,8 @@ bool is_psr_su_specific_panel(struct dc_link *link)
isPSRSUSupported = false;
else if (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x03)
isPSRSUSupported = false;
+ else if (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x03)
+ isPSRSUSupported = false;
else if (dpcd_caps->psr_info.force_psrsu_cap == 0x1)
isPSRSUSupported = true;
}
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 47ff3694ffa5..1d0693dad818 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -24,6 +24,7 @@

#include <linux/firmware.h>
#include <linux/pci.h>
+#include <linux/power_supply.h>
#include <linux/reboot.h>

#include "amdgpu.h"
@@ -731,16 +732,8 @@ static int smu_late_init(void *handle)
* handle the switch automatically. Driver involvement
* is unnecessary.
*/
- if (!smu->dc_controlled_by_gpio) {
- ret = smu_set_power_source(smu,
- adev->pm.ac_power ? SMU_POWER_SOURCE_AC :
- SMU_POWER_SOURCE_DC);
- if (ret) {
- dev_err(adev->dev, "Failed to switch to %s mode!\n",
- adev->pm.ac_power ? "AC" : "DC");
- return ret;
- }
- }
+ adev->pm.ac_power = power_supply_is_system_supplied() > 0;
+ smu_set_ac_dc(smu);

if ((adev->ip_versions[MP1_HWIP][0] == IP_VERSION(13, 0, 1)) ||
(adev->ip_versions[MP1_HWIP][0] == IP_VERSION(13, 0, 3)))
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
index d490b571c8ff..2e061a74a0b7 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -1467,10 +1467,12 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev,
case 0x3:
dev_dbg(adev->dev, "Switched to AC mode!\n");
schedule_work(&smu->interrupt_work);
+ adev->pm.ac_power = true;
break;
case 0x4:
dev_dbg(adev->dev, "Switched to DC mode!\n");
schedule_work(&smu->interrupt_work);
+ adev->pm.ac_power = false;
break;
case 0x7:
/*
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
index 1b0fb93539ec..f3257cf4b06f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -1415,10 +1415,12 @@ static int smu_v13_0_irq_process(struct amdgpu_device *adev,
case 0x3:
dev_dbg(adev->dev, "Switched to AC mode!\n");
smu_v13_0_ack_ac_dc_interrupt(smu);
+ adev->pm.ac_power = true;
break;
case 0x4:
dev_dbg(adev->dev, "Switched to DC mode!\n");
smu_v13_0_ack_ac_dc_interrupt(smu);
+ adev->pm.ac_power = false;
break;
case 0x7:
/*
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index cf86cc05b7fc..5f8137e9cfd7 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1742,6 +1742,7 @@ static ssize_t anx7625_aux_transfer(struct drm_dp_aux *aux,
u8 request = msg->request & ~DP_AUX_I2C_MOT;
int ret = 0;

+ mutex_lock(&ctx->aux_lock);
pm_runtime_get_sync(dev);
msg->reply = 0;
switch (request) {
@@ -1758,6 +1759,7 @@ static ssize_t anx7625_aux_transfer(struct drm_dp_aux *aux,
msg->size, msg->buffer);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
+ mutex_unlock(&ctx->aux_lock);

return ret;
}
@@ -2454,7 +2456,9 @@ static void anx7625_bridge_atomic_disable(struct drm_bridge *bridge,
ctx->connector = NULL;
anx7625_dp_stop(ctx);

- pm_runtime_put_sync(dev);
+ mutex_lock(&ctx->aux_lock);
+ pm_runtime_put_sync_suspend(dev);
+ mutex_unlock(&ctx->aux_lock);
}

static enum drm_connector_status
@@ -2648,6 +2652,7 @@ static int anx7625_i2c_probe(struct i2c_client *client)

mutex_init(&platform->lock);
mutex_init(&platform->hdcp_wq_lock);
+ mutex_init(&platform->aux_lock);

INIT_DELAYED_WORK(&platform->hdcp_work, hdcp_check_work_func);
platform->hdcp_workqueue = create_workqueue("hdcp workqueue");
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h
index 14f33d6be289..239956199e1b 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.h
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.h
@@ -471,6 +471,8 @@ struct anx7625_data {
struct workqueue_struct *hdcp_workqueue;
/* Lock for hdcp work queue */
struct mutex hdcp_wq_lock;
+ /* Lock for aux transfer and disable */
+ struct mutex aux_lock;
char edid_block;
struct display_timing dt;
u8 display_timing_valid;
diff --git a/drivers/gpu/drm/bridge/nxp-ptn3460.c b/drivers/gpu/drm/bridge/nxp-ptn3460.c
index 0851101a8c72..8686b20ac317 100644
--- a/drivers/gpu/drm/bridge/nxp-ptn3460.c
+++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c
@@ -54,13 +54,13 @@ static int ptn3460_read_bytes(struct ptn3460_bridge *ptn_bridge, char addr,
int ret;

ret = i2c_master_send(ptn_bridge->client, &addr, 1);
- if (ret <= 0) {
+ if (ret < 0) {
DRM_ERROR("Failed to send i2c command, ret=%d\n", ret);
return ret;
}

ret = i2c_master_recv(ptn_bridge->client, buf, len);
- if (ret <= 0) {
+ if (ret < 0) {
DRM_ERROR("Failed to recv i2c data, ret=%d\n", ret);
return ret;
}
@@ -78,7 +78,7 @@ static int ptn3460_write_byte(struct ptn3460_bridge *ptn_bridge, char addr,
buf[1] = val;

ret = i2c_master_send(ptn_bridge->client, buf, ARRAY_SIZE(buf));
- if (ret <= 0) {
+ if (ret < 0) {
DRM_ERROR("Failed to send i2c command, ret=%d\n", ret);
return ret;
}
diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c
index 083337a27966..09737acc2cf4 100644
--- a/drivers/gpu/drm/bridge/parade-ps8640.c
+++ b/drivers/gpu/drm/bridge/parade-ps8640.c
@@ -106,6 +106,7 @@ struct ps8640 {
struct device_link *link;
bool pre_enabled;
bool need_post_hpd_delay;
+ struct mutex aux_lock;
};

static const struct regmap_config ps8640_regmap_config[] = {
@@ -353,11 +354,20 @@ static ssize_t ps8640_aux_transfer(struct drm_dp_aux *aux,
struct device *dev = &ps_bridge->page[PAGE0_DP_CNTL]->dev;
int ret;

+ mutex_lock(&ps_bridge->aux_lock);
pm_runtime_get_sync(dev);
+ ret = _ps8640_wait_hpd_asserted(ps_bridge, 200 * 1000);
+ if (ret) {
+ pm_runtime_put_sync_suspend(dev);
+ goto exit;
+ }
ret = ps8640_aux_transfer_msg(aux, msg);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);

+exit:
+ mutex_unlock(&ps_bridge->aux_lock);
+
return ret;
}

@@ -476,7 +486,18 @@ static void ps8640_post_disable(struct drm_bridge *bridge)
ps_bridge->pre_enabled = false;

ps8640_bridge_vdo_control(ps_bridge, DISABLE);
+
+ /*
+ * The bridge seems to expect everything to be power cycled at the
+ * disable process, so grab a lock here to make sure
+ * ps8640_aux_transfer() is not holding a runtime PM reference and
+ * preventing the bridge from suspend.
+ */
+ mutex_lock(&ps_bridge->aux_lock);
+
pm_runtime_put_sync_suspend(&ps_bridge->page[PAGE0_DP_CNTL]->dev);
+
+ mutex_unlock(&ps_bridge->aux_lock);
}

static int ps8640_bridge_attach(struct drm_bridge *bridge,
@@ -657,6 +678,8 @@ static int ps8640_probe(struct i2c_client *client)
if (!ps_bridge)
return -ENOMEM;

+ mutex_init(&ps_bridge->aux_lock);
+
ps_bridge->supplies[0].supply = "vdd12";
ps_bridge->supplies[1].supply = "vdd33";
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ps_bridge->supplies),
diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
index 878fb7d3732b..6359d6f53a1b 100644
--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@@ -171,7 +171,6 @@ struct sii902x {
struct drm_connector connector;
struct gpio_desc *reset_gpio;
struct i2c_mux_core *i2cmux;
- struct regulator_bulk_data supplies[2];
bool sink_is_hdmi;
/*
* Mutex protects audio and video functions from interfering
@@ -1041,6 +1040,26 @@ static int sii902x_init(struct sii902x *sii902x)
return ret;
}

+ ret = sii902x_audio_codec_init(sii902x, dev);
+ if (ret)
+ return ret;
+
+ i2c_set_clientdata(sii902x->i2c, sii902x);
+
+ sii902x->i2cmux = i2c_mux_alloc(sii902x->i2c->adapter, dev,
+ 1, 0, I2C_MUX_GATE,
+ sii902x_i2c_bypass_select,
+ sii902x_i2c_bypass_deselect);
+ if (!sii902x->i2cmux) {
+ ret = -ENOMEM;
+ goto err_unreg_audio;
+ }
+
+ sii902x->i2cmux->priv = sii902x;
+ ret = i2c_mux_add_adapter(sii902x->i2cmux, 0, 0, 0);
+ if (ret)
+ goto err_unreg_audio;
+
sii902x->bridge.funcs = &sii902x_bridge_funcs;
sii902x->bridge.of_node = dev->of_node;
sii902x->bridge.timings = &default_sii902x_timings;
@@ -1051,19 +1070,13 @@ static int sii902x_init(struct sii902x *sii902x)

drm_bridge_add(&sii902x->bridge);

- sii902x_audio_codec_init(sii902x, dev);
+ return 0;

- i2c_set_clientdata(sii902x->i2c, sii902x);
+err_unreg_audio:
+ if (!PTR_ERR_OR_ZERO(sii902x->audio.pdev))
+ platform_device_unregister(sii902x->audio.pdev);

- sii902x->i2cmux = i2c_mux_alloc(sii902x->i2c->adapter, dev,
- 1, 0, I2C_MUX_GATE,
- sii902x_i2c_bypass_select,
- sii902x_i2c_bypass_deselect);
- if (!sii902x->i2cmux)
- return -ENOMEM;
-
- sii902x->i2cmux->priv = sii902x;
- return i2c_mux_add_adapter(sii902x->i2cmux, 0, 0, 0);
+ return ret;
}

static int sii902x_probe(struct i2c_client *client,
@@ -1072,6 +1085,7 @@ static int sii902x_probe(struct i2c_client *client,
struct device *dev = &client->dev;
struct device_node *endpoint;
struct sii902x *sii902x;
+ static const char * const supplies[] = {"iovcc", "cvcc12"};
int ret;

ret = i2c_check_functionality(client->adapter,
@@ -1122,38 +1136,22 @@ static int sii902x_probe(struct i2c_client *client,

mutex_init(&sii902x->mutex);

- sii902x->supplies[0].supply = "iovcc";
- sii902x->supplies[1].supply = "cvcc12";
- ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(sii902x->supplies),
- sii902x->supplies);
+ ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(supplies), supplies);
if (ret < 0)
- return ret;
-
- ret = regulator_bulk_enable(ARRAY_SIZE(sii902x->supplies),
- sii902x->supplies);
- if (ret < 0) {
- dev_err_probe(dev, ret, "Failed to enable supplies");
- return ret;
- }
+ return dev_err_probe(dev, ret, "Failed to enable supplies");

- ret = sii902x_init(sii902x);
- if (ret < 0) {
- regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies),
- sii902x->supplies);
- }
-
- return ret;
+ return sii902x_init(sii902x);
}

static void sii902x_remove(struct i2c_client *client)
-
{
struct sii902x *sii902x = i2c_get_clientdata(client);

- i2c_mux_del_adapters(sii902x->i2cmux);
drm_bridge_remove(&sii902x->bridge);
- regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies),
- sii902x->supplies);
+ i2c_mux_del_adapters(sii902x->i2cmux);
+
+ if (!PTR_ERR_OR_ZERO(sii902x->audio.pdev))
+ platform_device_unregister(sii902x->audio.pdev);
}

static const struct of_device_id sii902x_dt_ids[] = {
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 33357629a7f5..7a4af43e2cd1 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -1382,6 +1382,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
out:
if (fb)
drm_framebuffer_put(fb);
+ fb = NULL;
if (plane->old_fb)
drm_framebuffer_put(plane->old_fb);
plane->old_fb = NULL;
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 8155d7e650f1..4bc5d9470acd 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -319,9 +319,9 @@ static void decon_win_set_bldmod(struct decon_context *ctx, unsigned int win,
static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
struct drm_framebuffer *fb)
{
- struct exynos_drm_plane plane = ctx->planes[win];
+ struct exynos_drm_plane *plane = &ctx->planes[win];
struct exynos_drm_plane_state *state =
- to_exynos_plane_state(plane.base.state);
+ to_exynos_plane_state(plane->base.state);
unsigned int alpha = state->base.alpha;
unsigned int pixel_alpha;
unsigned long val;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index ae6636e6658e..529033b980b2 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -662,9 +662,9 @@ static void fimd_win_set_bldmod(struct fimd_context *ctx, unsigned int win,
static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win,
struct drm_framebuffer *fb, int width)
{
- struct exynos_drm_plane plane = ctx->planes[win];
+ struct exynos_drm_plane *plane = &ctx->planes[win];
struct exynos_drm_plane_state *state =
- to_exynos_plane_state(plane.base.state);
+ to_exynos_plane_state(plane->base.state);
uint32_t pixel_format = fb->format->format;
unsigned int alpha = state->base.alpha;
u32 val = WINCONx_ENWIN;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 964dceb28c1e..68ea92742b06 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1342,7 +1342,7 @@ static int __maybe_unused gsc_runtime_resume(struct device *dev)
for (i = 0; i < ctx->num_clocks; i++) {
ret = clk_prepare_enable(ctx->clocks[i]);
if (ret) {
- while (--i > 0)
+ while (--i >= 0)
clk_disable_unprepare(ctx->clocks[i]);
return ret;
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_vmm.c b/drivers/gpu/drm/nouveau/nouveau_vmm.c
index 67d6619fcd5e..29b5dedf6db8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vmm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vmm.c
@@ -108,6 +108,9 @@ nouveau_vma_new(struct nouveau_bo *nvbo, struct nouveau_vmm *vmm,
} else {
ret = nvif_vmm_get(&vmm->vmm, PTES, false, mem->mem.page, 0,
mem->mem.size, &tmp);
+ if (ret)
+ goto done;
+
vma->addr = tmp.addr;
}

diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c
index a163585a2a52..ecd6238749f7 100644
--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@@ -975,6 +975,8 @@ static const struct panel_desc auo_b116xak01 = {
},
.delay = {
.hpd_absent = 200,
+ .unprepare = 500,
+ .enable = 50,
},
};

@@ -1870,7 +1872,7 @@ static const struct edp_panel_entry edp_panels[] = {
EDP_PANEL_ENTRY('A', 'U', 'O', 0x1062, &delay_200_500_e50, "B120XAN01.0"),
EDP_PANEL_ENTRY('A', 'U', 'O', 0x1e9b, &delay_200_500_e50, "B133UAN02.1"),
EDP_PANEL_ENTRY('A', 'U', 'O', 0x1ea5, &delay_200_500_e50, "B116XAK01.6"),
- EDP_PANEL_ENTRY('A', 'U', 'O', 0x405c, &auo_b116xak01.delay, "B116XAK01"),
+ EDP_PANEL_ENTRY('A', 'U', 'O', 0x405c, &auo_b116xak01.delay, "B116XAK01.0"),
EDP_PANEL_ENTRY('A', 'U', 'O', 0x615c, &delay_200_500_e50, "B116XAN06.1"),
EDP_PANEL_ENTRY('A', 'U', 'O', 0x8594, &delay_200_500_e50, "B133UAN01.0"),

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 005377f58eb4..b714ee1bcbaa 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -3603,6 +3603,7 @@ static const struct panel_desc tianma_tm070jdhg30 = {
},
.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
.connector_type = DRM_MODE_CONNECTOR_LVDS,
+ .bus_flags = DRM_BUS_FLAG_DE_HIGH,
};

static const struct panel_desc tianma_tm070jvhg33 = {
@@ -3615,6 +3616,7 @@ static const struct panel_desc tianma_tm070jvhg33 = {
},
.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
.connector_type = DRM_MODE_CONNECTOR_LVDS,
+ .bus_flags = DRM_BUS_FLAG_DE_HIGH,
};

static const struct display_timing tianma_tm070rvhg71_timing = {
diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
index cd3c43a6c806..cb66a425dd20 100644
--- a/drivers/gpu/drm/tidss/tidss_crtc.c
+++ b/drivers/gpu/drm/tidss/tidss_crtc.c
@@ -170,13 +170,13 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
struct tidss_device *tidss = to_tidss(ddev);
unsigned long flags;

- dev_dbg(ddev->dev,
- "%s: %s enabled %d, needs modeset %d, event %p\n", __func__,
- crtc->name, drm_atomic_crtc_needs_modeset(crtc->state),
- crtc->state->enable, crtc->state->event);
+ dev_dbg(ddev->dev, "%s: %s is %sactive, %s modeset, event %p\n",
+ __func__, crtc->name, crtc->state->active ? "" : "not ",
+ drm_atomic_crtc_needs_modeset(crtc->state) ? "needs" : "doesn't need",
+ crtc->state->event);

/* There is nothing to do if CRTC is not going to be enabled. */
- if (!crtc->state->enable)
+ if (!crtc->state->active)
return;

/*
diff --git a/drivers/iio/adc/ad7091r-base.c b/drivers/iio/adc/ad7091r-base.c
index 0e5d3d2e9c98..76002b91c86a 100644
--- a/drivers/iio/adc/ad7091r-base.c
+++ b/drivers/iio/adc/ad7091r-base.c
@@ -6,6 +6,7 @@
*/

#include <linux/bitops.h>
+#include <linux/bitfield.h>
#include <linux/iio/events.h>
#include <linux/iio/iio.h>
#include <linux/interrupt.h>
@@ -28,6 +29,7 @@
#define AD7091R_REG_RESULT_CONV_RESULT(x) ((x) & 0xfff)

/* AD7091R_REG_CONF */
+#define AD7091R_REG_CONF_ALERT_EN BIT(4)
#define AD7091R_REG_CONF_AUTO BIT(8)
#define AD7091R_REG_CONF_CMD BIT(10)

@@ -49,6 +51,27 @@ struct ad7091r_state {
struct mutex lock; /*lock to prevent concurent reads */
};

+const struct iio_event_spec ad7091r_events[] = {
+ {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_RISING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE) |
+ BIT(IIO_EV_INFO_ENABLE),
+ },
+ {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_FALLING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE) |
+ BIT(IIO_EV_INFO_ENABLE),
+ },
+ {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_EITHER,
+ .mask_separate = BIT(IIO_EV_INFO_HYSTERESIS),
+ },
+};
+EXPORT_SYMBOL_NS_GPL(ad7091r_events, IIO_AD7091R);
+
static int ad7091r_set_mode(struct ad7091r_state *st, enum ad7091r_mode mode)
{
int ret, conf;
@@ -168,8 +191,142 @@ static int ad7091r_read_raw(struct iio_dev *iio_dev,
return ret;
}

+static int ad7091r_read_event_config(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir)
+{
+ struct ad7091r_state *st = iio_priv(indio_dev);
+ int val, ret;
+
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ ret = regmap_read(st->map,
+ AD7091R_REG_CH_HIGH_LIMIT(chan->channel),
+ &val);
+ if (ret)
+ return ret;
+ return val != AD7091R_HIGH_LIMIT;
+ case IIO_EV_DIR_FALLING:
+ ret = regmap_read(st->map,
+ AD7091R_REG_CH_LOW_LIMIT(chan->channel),
+ &val);
+ if (ret)
+ return ret;
+ return val != AD7091R_LOW_LIMIT;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int ad7091r_write_event_config(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir, int state)
+{
+ struct ad7091r_state *st = iio_priv(indio_dev);
+
+ if (state) {
+ return regmap_set_bits(st->map, AD7091R_REG_CONF,
+ AD7091R_REG_CONF_ALERT_EN);
+ } else {
+ /*
+ * Set thresholds either to 0 or to 2^12 - 1 as appropriate to
+ * prevent alerts and thus disable event generation.
+ */
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ return regmap_write(st->map,
+ AD7091R_REG_CH_HIGH_LIMIT(chan->channel),
+ AD7091R_HIGH_LIMIT);
+ case IIO_EV_DIR_FALLING:
+ return regmap_write(st->map,
+ AD7091R_REG_CH_LOW_LIMIT(chan->channel),
+ AD7091R_LOW_LIMIT);
+ default:
+ return -EINVAL;
+ }
+ }
+}
+
+static int ad7091r_read_event_value(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info, int *val, int *val2)
+{
+ struct ad7091r_state *st = iio_priv(indio_dev);
+ int ret;
+
+ switch (info) {
+ case IIO_EV_INFO_VALUE:
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ ret = regmap_read(st->map,
+ AD7091R_REG_CH_HIGH_LIMIT(chan->channel),
+ val);
+ if (ret)
+ return ret;
+ return IIO_VAL_INT;
+ case IIO_EV_DIR_FALLING:
+ ret = regmap_read(st->map,
+ AD7091R_REG_CH_LOW_LIMIT(chan->channel),
+ val);
+ if (ret)
+ return ret;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+ case IIO_EV_INFO_HYSTERESIS:
+ ret = regmap_read(st->map,
+ AD7091R_REG_CH_HYSTERESIS(chan->channel),
+ val);
+ if (ret)
+ return ret;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int ad7091r_write_event_value(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info, int val, int val2)
+{
+ struct ad7091r_state *st = iio_priv(indio_dev);
+
+ switch (info) {
+ case IIO_EV_INFO_VALUE:
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ return regmap_write(st->map,
+ AD7091R_REG_CH_HIGH_LIMIT(chan->channel),
+ val);
+ case IIO_EV_DIR_FALLING:
+ return regmap_write(st->map,
+ AD7091R_REG_CH_LOW_LIMIT(chan->channel),
+ val);
+ default:
+ return -EINVAL;
+ }
+ case IIO_EV_INFO_HYSTERESIS:
+ return regmap_write(st->map,
+ AD7091R_REG_CH_HYSTERESIS(chan->channel),
+ val);
+ default:
+ return -EINVAL;
+ }
+}
+
static const struct iio_info ad7091r_info = {
.read_raw = ad7091r_read_raw,
+ .read_event_config = &ad7091r_read_event_config,
+ .write_event_config = &ad7091r_write_event_config,
+ .read_event_value = &ad7091r_read_event_value,
+ .write_event_value = &ad7091r_write_event_value,
};

static irqreturn_t ad7091r_event_handler(int irq, void *private)
@@ -232,6 +389,11 @@ int ad7091r_probe(struct device *dev, const char *name,
iio_dev->channels = chip_info->channels;

if (irq) {
+ ret = regmap_update_bits(st->map, AD7091R_REG_CONF,
+ AD7091R_REG_CONF_ALERT_EN, BIT(4));
+ if (ret)
+ return ret;
+
ret = devm_request_threaded_irq(dev, irq, NULL,
ad7091r_event_handler,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT, name, iio_dev);
@@ -243,7 +405,14 @@ int ad7091r_probe(struct device *dev, const char *name,
if (IS_ERR(st->vref)) {
if (PTR_ERR(st->vref) == -EPROBE_DEFER)
return -EPROBE_DEFER;
+
st->vref = NULL;
+ /* Enable internal vref */
+ ret = regmap_set_bits(st->map, AD7091R_REG_CONF,
+ AD7091R_REG_CONF_INT_VREF);
+ if (ret)
+ return dev_err_probe(st->dev, ret,
+ "Error on enable internal reference\n");
} else {
ret = regulator_enable(st->vref);
if (ret)
diff --git a/drivers/iio/adc/ad7091r-base.h b/drivers/iio/adc/ad7091r-base.h
index 509748aef9b1..b9e1c8bf3440 100644
--- a/drivers/iio/adc/ad7091r-base.h
+++ b/drivers/iio/adc/ad7091r-base.h
@@ -8,6 +8,12 @@
#ifndef __DRIVERS_IIO_ADC_AD7091R_BASE_H__
#define __DRIVERS_IIO_ADC_AD7091R_BASE_H__

+#define AD7091R_REG_CONF_INT_VREF BIT(0)
+
+/* AD7091R_REG_CH_LIMIT */
+#define AD7091R_HIGH_LIMIT 0xFFF
+#define AD7091R_LOW_LIMIT 0x0
+
struct device;
struct ad7091r_state;

@@ -17,6 +23,8 @@ struct ad7091r_chip_info {
unsigned int vref_mV;
};

+extern const struct iio_event_spec ad7091r_events[3];
+
extern const struct regmap_config ad7091r_regmap_config;

int ad7091r_probe(struct device *dev, const char *name,
diff --git a/drivers/iio/adc/ad7091r5.c b/drivers/iio/adc/ad7091r5.c
index 47f5763023a4..12d475463945 100644
--- a/drivers/iio/adc/ad7091r5.c
+++ b/drivers/iio/adc/ad7091r5.c
@@ -12,26 +12,6 @@

#include "ad7091r-base.h"

-static const struct iio_event_spec ad7091r5_events[] = {
- {
- .type = IIO_EV_TYPE_THRESH,
- .dir = IIO_EV_DIR_RISING,
- .mask_separate = BIT(IIO_EV_INFO_VALUE) |
- BIT(IIO_EV_INFO_ENABLE),
- },
- {
- .type = IIO_EV_TYPE_THRESH,
- .dir = IIO_EV_DIR_FALLING,
- .mask_separate = BIT(IIO_EV_INFO_VALUE) |
- BIT(IIO_EV_INFO_ENABLE),
- },
- {
- .type = IIO_EV_TYPE_THRESH,
- .dir = IIO_EV_DIR_EITHER,
- .mask_separate = BIT(IIO_EV_INFO_HYSTERESIS),
- },
-};
-
#define AD7091R_CHANNEL(idx, bits, ev, num_ev) { \
.type = IIO_VOLTAGE, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
@@ -44,10 +24,10 @@ static const struct iio_event_spec ad7091r5_events[] = {
.scan_type.realbits = bits, \
}
static const struct iio_chan_spec ad7091r5_channels_irq[] = {
- AD7091R_CHANNEL(0, 12, ad7091r5_events, ARRAY_SIZE(ad7091r5_events)),
- AD7091R_CHANNEL(1, 12, ad7091r5_events, ARRAY_SIZE(ad7091r5_events)),
- AD7091R_CHANNEL(2, 12, ad7091r5_events, ARRAY_SIZE(ad7091r5_events)),
- AD7091R_CHANNEL(3, 12, ad7091r5_events, ARRAY_SIZE(ad7091r5_events)),
+ AD7091R_CHANNEL(0, 12, ad7091r_events, ARRAY_SIZE(ad7091r_events)),
+ AD7091R_CHANNEL(1, 12, ad7091r_events, ARRAY_SIZE(ad7091r_events)),
+ AD7091R_CHANNEL(2, 12, ad7091r_events, ARRAY_SIZE(ad7091r_events)),
+ AD7091R_CHANNEL(3, 12, ad7091r_events, ARRAY_SIZE(ad7091r_events)),
};

static const struct iio_chan_spec ad7091r5_channels_noirq[] = {
diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
index fa69158a65b1..cb1e4bc69dba 100644
--- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
+++ b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
@@ -494,9 +494,15 @@ vb2_dma_sg_dmabuf_ops_end_cpu_access(struct dma_buf *dbuf,
static int vb2_dma_sg_dmabuf_ops_vmap(struct dma_buf *dbuf,
struct iosys_map *map)
{
- struct vb2_dma_sg_buf *buf = dbuf->priv;
+ struct vb2_dma_sg_buf *buf;
+ void *vaddr;
+
+ buf = dbuf->priv;
+ vaddr = vb2_dma_sg_vaddr(buf->vb, buf);
+ if (!vaddr)
+ return -EINVAL;

- iosys_map_set_vaddr(map, buf->vaddr);
+ iosys_map_set_vaddr(map, vaddr);

return 0;
}
diff --git a/drivers/media/i2c/imx355.c b/drivers/media/i2c/imx355.c
index b46178681c05..7fb02ba56012 100644
--- a/drivers/media/i2c/imx355.c
+++ b/drivers/media/i2c/imx355.c
@@ -1784,10 +1784,6 @@ static int imx355_probe(struct i2c_client *client)
goto error_handler_free;
}

- ret = v4l2_async_register_subdev_sensor(&imx355->sd);
- if (ret < 0)
- goto error_media_entity;
-
/*
* Device is already turned on by i2c-core with ACPI domain PM.
* Enable runtime PM and turn off the device.
@@ -1796,9 +1792,15 @@ static int imx355_probe(struct i2c_client *client)
pm_runtime_enable(&client->dev);
pm_runtime_idle(&client->dev);

+ ret = v4l2_async_register_subdev_sensor(&imx355->sd);
+ if (ret < 0)
+ goto error_media_entity_runtime_pm;
+
return 0;

-error_media_entity:
+error_media_entity_runtime_pm:
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
media_entity_cleanup(&imx355->sd.entity);

error_handler_free:
diff --git a/drivers/media/i2c/ov13b10.c b/drivers/media/i2c/ov13b10.c
index 549e5d93e568..368a3c2bfe34 100644
--- a/drivers/media/i2c/ov13b10.c
+++ b/drivers/media/i2c/ov13b10.c
@@ -589,6 +589,9 @@ struct ov13b10 {

/* Streaming on/off */
bool streaming;
+
+ /* True if the device has been identified */
+ bool identified;
};

#define to_ov13b10(_sd) container_of(_sd, struct ov13b10, sd)
@@ -1023,12 +1026,42 @@ ov13b10_set_pad_format(struct v4l2_subdev *sd,
return 0;
}

+/* Verify chip ID */
+static int ov13b10_identify_module(struct ov13b10 *ov13b)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ int ret;
+ u32 val;
+
+ if (ov13b->identified)
+ return 0;
+
+ ret = ov13b10_read_reg(ov13b, OV13B10_REG_CHIP_ID,
+ OV13B10_REG_VALUE_24BIT, &val);
+ if (ret)
+ return ret;
+
+ if (val != OV13B10_CHIP_ID) {
+ dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
+ OV13B10_CHIP_ID, val);
+ return -EIO;
+ }
+
+ ov13b->identified = true;
+
+ return 0;
+}
+
static int ov13b10_start_streaming(struct ov13b10 *ov13b)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
const struct ov13b10_reg_list *reg_list;
int ret, link_freq_index;

+ ret = ov13b10_identify_module(ov13b);
+ if (ret)
+ return ret;
+
/* Get out of from software reset */
ret = ov13b10_write_reg(ov13b, OV13B10_REG_SOFTWARE_RST,
OV13B10_REG_VALUE_08BIT, OV13B10_SOFTWARE_RST);
@@ -1144,27 +1177,6 @@ static int __maybe_unused ov13b10_resume(struct device *dev)
return ret;
}

-/* Verify chip ID */
-static int ov13b10_identify_module(struct ov13b10 *ov13b)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
- int ret;
- u32 val;
-
- ret = ov13b10_read_reg(ov13b, OV13B10_REG_CHIP_ID,
- OV13B10_REG_VALUE_24BIT, &val);
- if (ret)
- return ret;
-
- if (val != OV13B10_CHIP_ID) {
- dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
- OV13B10_CHIP_ID, val);
- return -EIO;
- }
-
- return 0;
-}
-
static const struct v4l2_subdev_video_ops ov13b10_video_ops = {
.s_stream = ov13b10_set_stream,
};
@@ -1379,6 +1391,7 @@ static int ov13b10_check_hwcfg(struct device *dev)
static int ov13b10_probe(struct i2c_client *client)
{
struct ov13b10 *ov13b;
+ bool full_power;
int ret;

/* Check HW config */
@@ -1395,11 +1408,14 @@ static int ov13b10_probe(struct i2c_client *client)
/* Initialize subdev */
v4l2_i2c_subdev_init(&ov13b->sd, client, &ov13b10_subdev_ops);

- /* Check module identity */
- ret = ov13b10_identify_module(ov13b);
- if (ret) {
- dev_err(&client->dev, "failed to find sensor: %d\n", ret);
- return ret;
+ full_power = acpi_dev_state_d0(&client->dev);
+ if (full_power) {
+ /* Check module identity */
+ ret = ov13b10_identify_module(ov13b);
+ if (ret) {
+ dev_err(&client->dev, "failed to find sensor: %d\n", ret);
+ return ret;
+ }
}

/* Set default mode to max resolution */
@@ -1423,21 +1439,27 @@ static int ov13b10_probe(struct i2c_client *client)
goto error_handler_free;
}

- ret = v4l2_async_register_subdev_sensor(&ov13b->sd);
- if (ret < 0)
- goto error_media_entity;

/*
* Device is already turned on by i2c-core with ACPI domain PM.
* Enable runtime PM and turn off the device.
*/
- pm_runtime_set_active(&client->dev);
+ /* Set the device's state to active if it's in D0 state. */
+ if (full_power)
+ pm_runtime_set_active(&client->dev);
pm_runtime_enable(&client->dev);
pm_runtime_idle(&client->dev);

+ ret = v4l2_async_register_subdev_sensor(&ov13b->sd);
+ if (ret < 0)
+ goto error_media_entity_runtime_pm;
+
return 0;

-error_media_entity:
+error_media_entity_runtime_pm:
+ pm_runtime_disable(&client->dev);
+ if (full_power)
+ pm_runtime_set_suspended(&client->dev);
media_entity_cleanup(&ov13b->sd.entity);

error_handler_free:
@@ -1457,6 +1479,7 @@ static void ov13b10_remove(struct i2c_client *client)
ov13b10_free_controls(ov13b);

pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
}

static const struct dev_pm_ops ov13b10_pm_ops = {
@@ -1480,6 +1503,7 @@ static struct i2c_driver ov13b10_i2c_driver = {
},
.probe_new = ov13b10_probe,
.remove = ov13b10_remove,
+ .flags = I2C_DRV_ACPI_WAIVE_D0_PROBE,
};

module_i2c_driver(ov13b10_i2c_driver);
diff --git a/drivers/media/i2c/ov9734.c b/drivers/media/i2c/ov9734.c
index 8b0a158cb297..c5592ddb0cff 100644
--- a/drivers/media/i2c/ov9734.c
+++ b/drivers/media/i2c/ov9734.c
@@ -939,6 +939,7 @@ static void ov9734_remove(struct i2c_client *client)
media_entity_cleanup(&sd->entity);
v4l2_ctrl_handler_free(sd->ctrl_handler);
pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
mutex_destroy(&ov9734->mutex);
}

@@ -984,13 +985,6 @@ static int ov9734_probe(struct i2c_client *client)
goto probe_error_v4l2_ctrl_handler_free;
}

- ret = v4l2_async_register_subdev_sensor(&ov9734->sd);
- if (ret < 0) {
- dev_err(&client->dev, "failed to register V4L2 subdev: %d",
- ret);
- goto probe_error_media_entity_cleanup;
- }
-
/*
* Device is already turned on by i2c-core with ACPI domain PM.
* Enable runtime PM and turn off the device.
@@ -999,9 +993,18 @@ static int ov9734_probe(struct i2c_client *client)
pm_runtime_enable(&client->dev);
pm_runtime_idle(&client->dev);

+ ret = v4l2_async_register_subdev_sensor(&ov9734->sd);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+ ret);
+ goto probe_error_media_entity_cleanup_pm;
+ }
+
return 0;

-probe_error_media_entity_cleanup:
+probe_error_media_entity_cleanup_pm:
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
media_entity_cleanup(&ov9734->sd.entity);

probe_error_v4l2_ctrl_handler_free:
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 3071b61946c3..f911d3c7dd86 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -974,13 +974,13 @@ static void mtk_jpeg_dec_device_run(void *priv)
if (ret < 0)
goto dec_end;

- schedule_delayed_work(&jpeg->job_timeout_work,
- msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
-
mtk_jpeg_set_dec_src(ctx, &src_buf->vb2_buf, &bs);
if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, &dst_buf->vb2_buf, &fb))
goto dec_end;

+ schedule_delayed_work(&jpeg->job_timeout_work,
+ msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+
spin_lock_irqsave(&jpeg->hw_lock, flags);
mtk_jpeg_dec_reset(jpeg->reg_base);
mtk_jpeg_dec_set_config(jpeg->reg_base,
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index e9ce53d200bc..ea60efaecb0d 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -402,6 +402,10 @@ struct mmc_blk_ioc_data {
struct mmc_ioc_cmd ic;
unsigned char *buf;
u64 buf_bytes;
+ unsigned int flags;
+#define MMC_BLK_IOC_DROP BIT(0) /* drop this mrq */
+#define MMC_BLK_IOC_SBC BIT(1) /* use mrq.sbc */
+
struct mmc_rpmb_data *rpmb;
};

@@ -467,7 +471,7 @@ static int mmc_blk_ioctl_copy_to_user(struct mmc_ioc_cmd __user *ic_ptr,
}

static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
- struct mmc_blk_ioc_data *idata)
+ struct mmc_blk_ioc_data **idatas, int i)
{
struct mmc_command cmd = {}, sbc = {};
struct mmc_data data = {};
@@ -477,10 +481,18 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
unsigned int busy_timeout_ms;
int err;
unsigned int target_part;
+ struct mmc_blk_ioc_data *idata = idatas[i];
+ struct mmc_blk_ioc_data *prev_idata = NULL;

if (!card || !md || !idata)
return -EINVAL;

+ if (idata->flags & MMC_BLK_IOC_DROP)
+ return 0;
+
+ if (idata->flags & MMC_BLK_IOC_SBC)
+ prev_idata = idatas[i - 1];
+
/*
* The RPMB accesses comes in from the character device, so we
* need to target these explicitly. Else we just target the
@@ -547,7 +559,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
return err;
}

- if (idata->rpmb) {
+ if (idata->rpmb || prev_idata) {
sbc.opcode = MMC_SET_BLOCK_COUNT;
/*
* We don't do any blockcount validation because the max size
@@ -555,6 +567,8 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
* 'Reliable Write' bit here.
*/
sbc.arg = data.blocks | (idata->ic.write_flag & BIT(31));
+ if (prev_idata)
+ sbc.arg = prev_idata->ic.arg;
sbc.flags = MMC_RSP_R1 | MMC_CMD_AC;
mrq.sbc = &sbc;
}
@@ -572,6 +586,15 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
mmc_wait_for_req(card->host, &mrq);
memcpy(&idata->ic.response, cmd.resp, sizeof(cmd.resp));

+ if (prev_idata) {
+ memcpy(&prev_idata->ic.response, sbc.resp, sizeof(sbc.resp));
+ if (sbc.error) {
+ dev_err(mmc_dev(card->host), "%s: sbc error %d\n",
+ __func__, sbc.error);
+ return sbc.error;
+ }
+ }
+
if (cmd.error) {
dev_err(mmc_dev(card->host), "%s: cmd error %d\n",
__func__, cmd.error);
@@ -1057,6 +1080,20 @@ static inline void mmc_blk_reset_success(struct mmc_blk_data *md, int type)
md->reset_done &= ~type;
}

+static void mmc_blk_check_sbc(struct mmc_queue_req *mq_rq)
+{
+ struct mmc_blk_ioc_data **idata = mq_rq->drv_op_data;
+ int i;
+
+ for (i = 1; i < mq_rq->ioc_count; i++) {
+ if (idata[i - 1]->ic.opcode == MMC_SET_BLOCK_COUNT &&
+ mmc_op_multi(idata[i]->ic.opcode)) {
+ idata[i - 1]->flags |= MMC_BLK_IOC_DROP;
+ idata[i]->flags |= MMC_BLK_IOC_SBC;
+ }
+ }
+}
+
/*
* The non-block commands come back from the block layer after it queued it and
* processed it with all other requests and then they get issued in this
@@ -1084,11 +1121,14 @@ static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req)
if (ret)
break;
}
+
+ mmc_blk_check_sbc(mq_rq);
+
fallthrough;
case MMC_DRV_OP_IOCTL_RPMB:
idata = mq_rq->drv_op_data;
for (i = 0, ret = 0; i < mq_rq->ioc_count; i++) {
- ret = __mmc_blk_ioctl_cmd(card, md, idata[i]);
+ ret = __mmc_blk_ioctl_cmd(card, md, idata, i);
if (ret)
break;
}
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index cc333ad67cac..2a99ffb61f8c 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -15,7 +15,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/bio.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direction.h>
#include <linux/crc7.h>
#include <linux/crc-itu-t.h>
#include <linux/scatterlist.h>
@@ -119,19 +119,14 @@ struct mmc_spi_host {
struct spi_transfer status;
struct spi_message readback;

- /* underlying DMA-aware controller, or null */
- struct device *dma_dev;
-
/* buffer used for commands and for message "overhead" */
struct scratch *data;
- dma_addr_t data_dma;

/* Specs say to write ones most of the time, even when the card
* has no need to read its input data; and many cards won't care.
* This is our source of those ones.
*/
void *ones;
- dma_addr_t ones_dma;
};

@@ -147,11 +142,8 @@ static inline int mmc_cs_off(struct mmc_spi_host *host)
return spi_setup(host->spi);
}

-static int
-mmc_spi_readbytes(struct mmc_spi_host *host, unsigned len)
+static int mmc_spi_readbytes(struct mmc_spi_host *host, unsigned int len)
{
- int status;
-
if (len > sizeof(*host->data)) {
WARN_ON(1);
return -EIO;
@@ -159,19 +151,7 @@ mmc_spi_readbytes(struct mmc_spi_host *host, unsigned len)

host->status.len = len;

- if (host->dma_dev)
- dma_sync_single_for_device(host->dma_dev,
- host->data_dma, sizeof(*host->data),
- DMA_FROM_DEVICE);
-
- status = spi_sync_locked(host->spi, &host->readback);
-
- if (host->dma_dev)
- dma_sync_single_for_cpu(host->dma_dev,
- host->data_dma, sizeof(*host->data),
- DMA_FROM_DEVICE);
-
- return status;
+ return spi_sync_locked(host->spi, &host->readback);
}

static int mmc_spi_skip(struct mmc_spi_host *host, unsigned long timeout,
@@ -506,23 +486,11 @@ mmc_spi_command_send(struct mmc_spi_host *host,
t = &host->t;
memset(t, 0, sizeof(*t));
t->tx_buf = t->rx_buf = data->status;
- t->tx_dma = t->rx_dma = host->data_dma;
t->len = cp - data->status;
t->cs_change = 1;
spi_message_add_tail(t, &host->m);

- if (host->dma_dev) {
- host->m.is_dma_mapped = 1;
- dma_sync_single_for_device(host->dma_dev,
- host->data_dma, sizeof(*host->data),
- DMA_BIDIRECTIONAL);
- }
status = spi_sync_locked(host->spi, &host->m);
-
- if (host->dma_dev)
- dma_sync_single_for_cpu(host->dma_dev,
- host->data_dma, sizeof(*host->data),
- DMA_BIDIRECTIONAL);
if (status < 0) {
dev_dbg(&host->spi->dev, " ... write returned %d\n", status);
cmd->error = status;
@@ -540,9 +508,6 @@ mmc_spi_command_send(struct mmc_spi_host *host,
* We always provide TX data for data and CRC. The MMC/SD protocol
* requires us to write ones; but Linux defaults to writing zeroes;
* so we explicitly initialize it to all ones on RX paths.
- *
- * We also handle DMA mapping, so the underlying SPI controller does
- * not need to (re)do it for each message.
*/
static void
mmc_spi_setup_data_message(
@@ -552,11 +517,8 @@ mmc_spi_setup_data_message(
{
struct spi_transfer *t;
struct scratch *scratch = host->data;
- dma_addr_t dma = host->data_dma;

spi_message_init(&host->m);
- if (dma)
- host->m.is_dma_mapped = 1;

/* for reads, readblock() skips 0xff bytes before finding
* the token; for writes, this transfer issues that token.
@@ -570,8 +532,6 @@ mmc_spi_setup_data_message(
else
scratch->data_token = SPI_TOKEN_SINGLE;
t->tx_buf = &scratch->data_token;
- if (dma)
- t->tx_dma = dma + offsetof(struct scratch, data_token);
spi_message_add_tail(t, &host->m);
}

@@ -581,7 +541,6 @@ mmc_spi_setup_data_message(
t = &host->t;
memset(t, 0, sizeof(*t));
t->tx_buf = host->ones;
- t->tx_dma = host->ones_dma;
/* length and actual buffer info are written later */
spi_message_add_tail(t, &host->m);

@@ -591,14 +550,9 @@ mmc_spi_setup_data_message(
if (direction == DMA_TO_DEVICE) {
/* the actual CRC may get written later */
t->tx_buf = &scratch->crc_val;
- if (dma)
- t->tx_dma = dma + offsetof(struct scratch, crc_val);
} else {
t->tx_buf = host->ones;
- t->tx_dma = host->ones_dma;
t->rx_buf = &scratch->crc_val;
- if (dma)
- t->rx_dma = dma + offsetof(struct scratch, crc_val);
}
spi_message_add_tail(t, &host->m);

@@ -621,10 +575,7 @@ mmc_spi_setup_data_message(
memset(t, 0, sizeof(*t));
t->len = (direction == DMA_TO_DEVICE) ? sizeof(scratch->status) : 1;
t->tx_buf = host->ones;
- t->tx_dma = host->ones_dma;
t->rx_buf = scratch->status;
- if (dma)
- t->rx_dma = dma + offsetof(struct scratch, status);
t->cs_change = 1;
spi_message_add_tail(t, &host->m);
}
@@ -653,23 +604,13 @@ mmc_spi_writeblock(struct mmc_spi_host *host, struct spi_transfer *t,

if (host->mmc->use_spi_crc)
scratch->crc_val = cpu_to_be16(crc_itu_t(0, t->tx_buf, t->len));
- if (host->dma_dev)
- dma_sync_single_for_device(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);

status = spi_sync_locked(spi, &host->m);
-
if (status != 0) {
dev_dbg(&spi->dev, "write error (%d)\n", status);
return status;
}

- if (host->dma_dev)
- dma_sync_single_for_cpu(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);
-
/*
* Get the transmission data-response reply. It must follow
* immediately after the data block we transferred. This reply
@@ -718,8 +659,6 @@ mmc_spi_writeblock(struct mmc_spi_host *host, struct spi_transfer *t,
}

t->tx_buf += t->len;
- if (host->dma_dev)
- t->tx_dma += t->len;

/* Return when not busy. If we didn't collect that status yet,
* we'll need some more I/O.
@@ -783,30 +722,12 @@ mmc_spi_readblock(struct mmc_spi_host *host, struct spi_transfer *t,
}
leftover = status << 1;

- if (host->dma_dev) {
- dma_sync_single_for_device(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);
- dma_sync_single_for_device(host->dma_dev,
- t->rx_dma, t->len,
- DMA_FROM_DEVICE);
- }
-
status = spi_sync_locked(spi, &host->m);
if (status < 0) {
dev_dbg(&spi->dev, "read error %d\n", status);
return status;
}

- if (host->dma_dev) {
- dma_sync_single_for_cpu(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);
- dma_sync_single_for_cpu(host->dma_dev,
- t->rx_dma, t->len,
- DMA_FROM_DEVICE);
- }
-
if (bitshift) {
/* Walk through the data and the crc and do
* all the magic to get byte-aligned data.
@@ -841,8 +762,6 @@ mmc_spi_readblock(struct mmc_spi_host *host, struct spi_transfer *t,
}

t->rx_buf += t->len;
- if (host->dma_dev)
- t->rx_dma += t->len;

return 0;
}
@@ -857,7 +776,6 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
struct mmc_data *data, u32 blk_size)
{
struct spi_device *spi = host->spi;
- struct device *dma_dev = host->dma_dev;
struct spi_transfer *t;
enum dma_data_direction direction = mmc_get_dma_dir(data);
struct scatterlist *sg;
@@ -884,31 +802,8 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
*/
for_each_sg(data->sg, sg, data->sg_len, n_sg) {
int status = 0;
- dma_addr_t dma_addr = 0;
void *kmap_addr;
unsigned length = sg->length;
- enum dma_data_direction dir = direction;
-
- /* set up dma mapping for controller drivers that might
- * use DMA ... though they may fall back to PIO
- */
- if (dma_dev) {
- /* never invalidate whole *shared* pages ... */
- if ((sg->offset != 0 || length != PAGE_SIZE)
- && dir == DMA_FROM_DEVICE)
- dir = DMA_BIDIRECTIONAL;
-
- dma_addr = dma_map_page(dma_dev, sg_page(sg), 0,
- PAGE_SIZE, dir);
- if (dma_mapping_error(dma_dev, dma_addr)) {
- data->error = -EFAULT;
- break;
- }
- if (direction == DMA_TO_DEVICE)
- t->tx_dma = dma_addr + sg->offset;
- else
- t->rx_dma = dma_addr + sg->offset;
- }

/* allow pio too; we don't allow highmem */
kmap_addr = kmap(sg_page(sg));
@@ -941,8 +836,6 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
if (direction == DMA_FROM_DEVICE)
flush_dcache_page(sg_page(sg));
kunmap(sg_page(sg));
- if (dma_dev)
- dma_unmap_page(dma_dev, dma_addr, PAGE_SIZE, dir);

if (status < 0) {
data->error = status;
@@ -977,21 +870,9 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
scratch->status[0] = SPI_TOKEN_STOP_TRAN;

host->early_status.tx_buf = host->early_status.rx_buf;
- host->early_status.tx_dma = host->early_status.rx_dma;
host->early_status.len = statlen;

- if (host->dma_dev)
- dma_sync_single_for_device(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);
-
tmp = spi_sync_locked(spi, &host->m);
-
- if (host->dma_dev)
- dma_sync_single_for_cpu(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);
-
if (tmp < 0) {
if (!data->error)
data->error = tmp;
@@ -1265,52 +1146,6 @@ mmc_spi_detect_irq(int irq, void *mmc)
return IRQ_HANDLED;
}

-#ifdef CONFIG_HAS_DMA
-static int mmc_spi_dma_alloc(struct mmc_spi_host *host)
-{
- struct spi_device *spi = host->spi;
- struct device *dev;
-
- if (!spi->master->dev.parent->dma_mask)
- return 0;
-
- dev = spi->master->dev.parent;
-
- host->ones_dma = dma_map_single(dev, host->ones, MMC_SPI_BLOCKSIZE,
- DMA_TO_DEVICE);
- if (dma_mapping_error(dev, host->ones_dma))
- return -ENOMEM;
-
- host->data_dma = dma_map_single(dev, host->data, sizeof(*host->data),
- DMA_BIDIRECTIONAL);
- if (dma_mapping_error(dev, host->data_dma)) {
- dma_unmap_single(dev, host->ones_dma, MMC_SPI_BLOCKSIZE,
- DMA_TO_DEVICE);
- return -ENOMEM;
- }
-
- dma_sync_single_for_cpu(dev, host->data_dma, sizeof(*host->data),
- DMA_BIDIRECTIONAL);
-
- host->dma_dev = dev;
- return 0;
-}
-
-static void mmc_spi_dma_free(struct mmc_spi_host *host)
-{
- if (!host->dma_dev)
- return;
-
- dma_unmap_single(host->dma_dev, host->ones_dma, MMC_SPI_BLOCKSIZE,
- DMA_TO_DEVICE);
- dma_unmap_single(host->dma_dev, host->data_dma, sizeof(*host->data),
- DMA_BIDIRECTIONAL);
-}
-#else
-static inline int mmc_spi_dma_alloc(struct mmc_spi_host *host) { return 0; }
-static inline void mmc_spi_dma_free(struct mmc_spi_host *host) {}
-#endif
-
static int mmc_spi_probe(struct spi_device *spi)
{
void *ones;
@@ -1402,24 +1237,17 @@ static int mmc_spi_probe(struct spi_device *spi)
host->powerup_msecs = 250;
}

- /* preallocate dma buffers */
+ /* Preallocate buffers */
host->data = kmalloc(sizeof(*host->data), GFP_KERNEL);
if (!host->data)
goto fail_nobuf1;

- status = mmc_spi_dma_alloc(host);
- if (status)
- goto fail_dma;
-
/* setup message for status/busy readback */
spi_message_init(&host->readback);
- host->readback.is_dma_mapped = (host->dma_dev != NULL);

spi_message_add_tail(&host->status, &host->readback);
host->status.tx_buf = host->ones;
- host->status.tx_dma = host->ones_dma;
host->status.rx_buf = &host->data->status;
- host->status.rx_dma = host->data_dma + offsetof(struct scratch, status);
host->status.cs_change = 1;

/* register card detect irq */
@@ -1464,9 +1292,8 @@ static int mmc_spi_probe(struct spi_device *spi)
if (!status)
has_ro = true;

- dev_info(&spi->dev, "SD/MMC host %s%s%s%s%s\n",
+ dev_info(&spi->dev, "SD/MMC host %s%s%s%s\n",
dev_name(&mmc->class_dev),
- host->dma_dev ? "" : ", no DMA",
has_ro ? "" : ", no WP",
(host->pdata && host->pdata->setpower)
? "" : ", no poweroff",
@@ -1477,8 +1304,6 @@ static int mmc_spi_probe(struct spi_device *spi)
fail_gpiod_request:
mmc_remove_host(mmc);
fail_glue_init:
- mmc_spi_dma_free(host);
-fail_dma:
kfree(host->data);
fail_nobuf1:
mmc_spi_put_pdata(spi);
@@ -1500,7 +1325,6 @@ static void mmc_spi_remove(struct spi_device *spi)

mmc_remove_host(mmc);

- mmc_spi_dma_free(host);
kfree(host->data);
kfree(host->ones);

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index df4d88d35701..f810b5dc25f0 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -12269,6 +12269,11 @@ static int bnxt_fw_init_one_p1(struct bnxt *bp)

bp->fw_cap = 0;
rc = bnxt_hwrm_ver_get(bp);
+ /* FW may be unresponsive after FLR. FLR must complete within 100 msec
+ * so wait before continuing with recovery.
+ */
+ if (rc)
+ msleep(100);
bnxt_try_map_fw_health_reg(bp);
if (rc) {
rc = bnxt_try_recover_fw(bp);
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 6d1b76002282..97d12c7eea77 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1917,6 +1917,7 @@ static void fec_enet_adjust_link(struct net_device *ndev)

/* if any of the above changed restart the FEC */
if (status_change) {
+ netif_stop_queue(ndev);
napi_disable(&fep->napi);
netif_tx_lock_bh(ndev);
fec_restart(ndev);
@@ -1926,6 +1927,7 @@ static void fec_enet_adjust_link(struct net_device *ndev)
}
} else {
if (fep->link) {
+ netif_stop_queue(ndev);
napi_disable(&fep->napi);
netif_tx_lock_bh(ndev);
fec_stop(ndev);
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index f936640cca4e..2f80ee84c7ec 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -614,12 +614,38 @@ static void mvpp23_bm_set_8pool_mode(struct mvpp2 *priv)
mvpp2_write(priv, MVPP22_BM_POOL_BASE_ADDR_HIGH_REG, val);
}

+/* Cleanup pool before actual initialization in the OS */
+static void mvpp2_bm_pool_cleanup(struct mvpp2 *priv, int pool_id)
+{
+ unsigned int thread = mvpp2_cpu_to_thread(priv, get_cpu());
+ u32 val;
+ int i;
+
+ /* Drain the BM from all possible residues left by firmware */
+ for (i = 0; i < MVPP2_BM_POOL_SIZE_MAX; i++)
+ mvpp2_thread_read(priv, thread, MVPP2_BM_PHY_ALLOC_REG(pool_id));
+
+ put_cpu();
+
+ /* Stop the BM pool */
+ val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(pool_id));
+ val |= MVPP2_BM_STOP_MASK;
+ mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(pool_id), val);
+}
+
static int mvpp2_bm_init(struct device *dev, struct mvpp2 *priv)
{
enum dma_data_direction dma_dir = DMA_FROM_DEVICE;
int i, err, poolnum = MVPP2_BM_POOLS_NUM;
struct mvpp2_port *port;

+ if (priv->percpu_pools)
+ poolnum = mvpp2_get_nrxqs(priv) * 2;
+
+ /* Clean up the pool state in case it contains stale state */
+ for (i = 0; i < poolnum; i++)
+ mvpp2_bm_pool_cleanup(priv, i);
+
if (priv->percpu_pools) {
for (i = 0; i < priv->port_count; i++) {
port = priv->port_list[i];
@@ -629,7 +655,6 @@ static int mvpp2_bm_init(struct device *dev, struct mvpp2 *priv)
}
}

- poolnum = mvpp2_get_nrxqs(priv) * 2;
for (i = 0; i < poolnum; i++) {
/* the pool in use */
int pn = i / (poolnum / 2);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c b/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c
index e1283531e0b8..671adbad0a40 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c
@@ -436,6 +436,7 @@ static int fs_any_create_groups(struct mlx5e_flow_table *ft)
in = kvzalloc(inlen, GFP_KERNEL);
if (!in || !ft->g) {
kfree(ft->g);
+ ft->g = NULL;
kvfree(in);
return -ENOMEM;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
index 29dd3a04c154..d3de1b7a80bf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
@@ -990,8 +990,8 @@ void mlx5e_build_sq_param(struct mlx5_core_dev *mdev,
void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
bool allow_swp;

- allow_swp =
- mlx5_geneve_tx_allowed(mdev) || !!mlx5_ipsec_device_caps(mdev);
+ allow_swp = mlx5_geneve_tx_allowed(mdev) ||
+ (mlx5_ipsec_device_caps(mdev) & MLX5_IPSEC_CAP_CRYPTO);
mlx5e_build_sq_param_common(mdev, param);
MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size);
MLX5_SET(sqc, sqc, allow_swp, allow_swp);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h
index 16bcceec16c4..785f188148d8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h
@@ -34,7 +34,6 @@
#ifndef __MLX5E_IPSEC_H__
#define __MLX5E_IPSEC_H__

-#ifdef CONFIG_MLX5_EN_IPSEC

#include <linux/mlx5/device.h>
#include <net/xfrm.h>
@@ -146,6 +145,7 @@ struct mlx5e_ipsec_sa_entry {
struct mlx5e_ipsec_modify_state_work modify_work;
};

+#ifdef CONFIG_MLX5_EN_IPSEC
int mlx5e_ipsec_init(struct mlx5e_priv *priv);
void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv);
void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
index dc0a0a27ac84..58eacba6de8c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
@@ -255,11 +255,13 @@ static int arfs_create_groups(struct mlx5e_flow_table *ft,

ft->g = kcalloc(MLX5E_ARFS_NUM_GROUPS,
sizeof(*ft->g), GFP_KERNEL);
- in = kvzalloc(inlen, GFP_KERNEL);
- if (!in || !ft->g) {
- kfree(ft->g);
- kvfree(in);
+ if (!ft->g)
return -ENOMEM;
+
+ in = kvzalloc(inlen, GFP_KERNEL);
+ if (!in) {
+ err = -ENOMEM;
+ goto err_free_g;
}

mc = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria);
@@ -279,7 +281,7 @@ static int arfs_create_groups(struct mlx5e_flow_table *ft,
break;
default:
err = -EINVAL;
- goto out;
+ goto err_free_in;
}

switch (type) {
@@ -301,7 +303,7 @@ static int arfs_create_groups(struct mlx5e_flow_table *ft,
break;
default:
err = -EINVAL;
- goto out;
+ goto err_free_in;
}

MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
@@ -310,7 +312,7 @@ static int arfs_create_groups(struct mlx5e_flow_table *ft,
MLX5_SET_CFG(in, end_flow_index, ix - 1);
ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
if (IS_ERR(ft->g[ft->num_groups]))
- goto err;
+ goto err_clean_group;
ft->num_groups++;

memset(in, 0, inlen);
@@ -319,18 +321,20 @@ static int arfs_create_groups(struct mlx5e_flow_table *ft,
MLX5_SET_CFG(in, end_flow_index, ix - 1);
ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
if (IS_ERR(ft->g[ft->num_groups]))
- goto err;
+ goto err_clean_group;
ft->num_groups++;

kvfree(in);
return 0;

-err:
+err_clean_group:
err = PTR_ERR(ft->g[ft->num_groups]);
ft->g[ft->num_groups] = NULL;
-out:
+err_free_in:
kvfree(in);
-
+err_free_g:
+ kfree(ft->g);
+ ft->g = NULL;
return err;
}

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/aso.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/aso.c
index c971ff04dd04..c215252f2f53 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/aso.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/aso.c
@@ -98,7 +98,7 @@ static int create_aso_cq(struct mlx5_aso_cq *cq, void *cqc_data)
mlx5_fill_page_frag_array(&cq->wq_ctrl.buf,
(__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));

- MLX5_SET(cqc, cqc, cq_period_mode, DIM_CQ_PERIOD_MODE_START_FROM_EQE);
+ MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
MLX5_SET(cqc, cqc, c_eqn_or_apu_element, eqn);
MLX5_SET(cqc, cqc, uar_page, mdev->priv.uar->index);
MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
index a3e7602b044e..bf7517725d8c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
@@ -673,6 +673,7 @@ int mlx5dr_actions_build_ste_arr(struct mlx5dr_matcher *matcher,
switch (action_type) {
case DR_ACTION_TYP_DROP:
attr.final_icm_addr = nic_dmn->drop_icm_addr;
+ attr.hit_gvmi = nic_dmn->drop_icm_addr >> 48;
break;
case DR_ACTION_TYP_FT:
dest_action = action;
@@ -761,11 +762,17 @@ int mlx5dr_actions_build_ste_arr(struct mlx5dr_matcher *matcher,
action->sampler->tx_icm_addr;
break;
case DR_ACTION_TYP_VPORT:
- attr.hit_gvmi = action->vport->caps->vhca_gvmi;
- dest_action = action;
- attr.final_icm_addr = rx_rule ?
- action->vport->caps->icm_address_rx :
- action->vport->caps->icm_address_tx;
+ if (unlikely(rx_rule && action->vport->caps->num == MLX5_VPORT_UPLINK)) {
+ /* can't go to uplink on RX rule - dropping instead */
+ attr.final_icm_addr = nic_dmn->drop_icm_addr;
+ attr.hit_gvmi = nic_dmn->drop_icm_addr >> 48;
+ } else {
+ attr.hit_gvmi = action->vport->caps->vhca_gvmi;
+ dest_action = action;
+ attr.final_icm_addr = rx_rule ?
+ action->vport->caps->icm_address_rx :
+ action->vport->caps->icm_address_tx;
+ }
break;
case DR_ACTION_TYP_POP_VLAN:
if (!rx_rule && !(dmn->ste_ctx->actions_caps &
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 8f8de14347a9..e988a60c8561 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -7166,6 +7166,9 @@ int stmmac_dvr_probe(struct device *device,
dev_err(priv->device, "unable to bring out of ahb reset: %pe\n",
ERR_PTR(ret));

+ /* Wait a bit for the reset to take effect */
+ udelay(10);
+
/* Init MAC and get the capabilities */
ret = stmmac_hw_init(priv);
if (ret)
diff --git a/drivers/net/fjes/fjes_hw.c b/drivers/net/fjes/fjes_hw.c
index 704e949484d0..b9b5554ea862 100644
--- a/drivers/net/fjes/fjes_hw.c
+++ b/drivers/net/fjes/fjes_hw.c
@@ -221,21 +221,25 @@ static int fjes_hw_setup(struct fjes_hw *hw)

mem_size = FJES_DEV_REQ_BUF_SIZE(hw->max_epid);
hw->hw_info.req_buf = kzalloc(mem_size, GFP_KERNEL);
- if (!(hw->hw_info.req_buf))
- return -ENOMEM;
+ if (!(hw->hw_info.req_buf)) {
+ result = -ENOMEM;
+ goto free_ep_info;
+ }

hw->hw_info.req_buf_size = mem_size;

mem_size = FJES_DEV_RES_BUF_SIZE(hw->max_epid);
hw->hw_info.res_buf = kzalloc(mem_size, GFP_KERNEL);
- if (!(hw->hw_info.res_buf))
- return -ENOMEM;
+ if (!(hw->hw_info.res_buf)) {
+ result = -ENOMEM;
+ goto free_req_buf;
+ }

hw->hw_info.res_buf_size = mem_size;

result = fjes_hw_alloc_shared_status_region(hw);
if (result)
- return result;
+ goto free_res_buf;

hw->hw_info.buffer_share_bit = 0;
hw->hw_info.buffer_unshare_reserve_bit = 0;
@@ -246,11 +250,11 @@ static int fjes_hw_setup(struct fjes_hw *hw)

result = fjes_hw_alloc_epbuf(&buf_pair->tx);
if (result)
- return result;
+ goto free_epbuf;

result = fjes_hw_alloc_epbuf(&buf_pair->rx);
if (result)
- return result;
+ goto free_epbuf;

spin_lock_irqsave(&hw->rx_status_lock, flags);
fjes_hw_setup_epbuf(&buf_pair->tx, mac,
@@ -273,6 +277,25 @@ static int fjes_hw_setup(struct fjes_hw *hw)
fjes_hw_init_command_registers(hw, &param);

return 0;
+
+free_epbuf:
+ for (epidx = 0; epidx < hw->max_epid ; epidx++) {
+ if (epidx == hw->my_epid)
+ continue;
+ fjes_hw_free_epbuf(&hw->ep_shm_info[epidx].tx);
+ fjes_hw_free_epbuf(&hw->ep_shm_info[epidx].rx);
+ }
+ fjes_hw_free_shared_status_region(hw);
+free_res_buf:
+ kfree(hw->hw_info.res_buf);
+ hw->hw_info.res_buf = NULL;
+free_req_buf:
+ kfree(hw->hw_info.req_buf);
+ hw->hw_info.req_buf = NULL;
+free_ep_info:
+ kfree(hw->ep_shm_info);
+ hw->ep_shm_info = NULL;
+ return result;
}

static void fjes_hw_cleanup(struct fjes_hw *hw)
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 0285894c892a..c1aac6ceb29e 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -44,7 +44,7 @@

static unsigned int ring_size __ro_after_init = 128;
module_param(ring_size, uint, 0444);
-MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)");
+MODULE_PARM_DESC(ring_size, "Ring buffer size (# of 4K pages)");
unsigned int netvsc_ring_bytes __ro_after_init;

static const u32 default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE |
@@ -2801,7 +2801,7 @@ static int __init netvsc_drv_init(void)
pr_info("Increased ring_size to %u (min allowed)\n",
ring_size);
}
- netvsc_ring_bytes = ring_size * PAGE_SIZE;
+ netvsc_ring_bytes = VMBUS_RING_SIZE(ring_size * 4096);

register_netdevice_notifier(&netvsc_netdev_notifier);

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 7cbcf51bae92..9481f172830f 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -120,6 +120,11 @@
*/
#define LAN8814_1PPM_FORMAT 17179

+#define PTP_RX_VERSION 0x0248
+#define PTP_TX_VERSION 0x0288
+#define PTP_MAX_VERSION(x) (((x) & GENMASK(7, 0)) << 8)
+#define PTP_MIN_VERSION(x) ((x) & GENMASK(7, 0))
+
#define PTP_RX_MOD 0x024F
#define PTP_RX_MOD_BAD_UDPV4_CHKSUM_FORCE_FCS_DIS_ BIT(3)
#define PTP_RX_TIMESTAMP_EN 0x024D
@@ -2922,6 +2927,12 @@ static void lan8814_ptp_init(struct phy_device *phydev)
lanphy_write_page_reg(phydev, 5, PTP_TX_PARSE_IP_ADDR_EN, 0);
lanphy_write_page_reg(phydev, 5, PTP_RX_PARSE_IP_ADDR_EN, 0);

+ /* Disable checking for minorVersionPTP field */
+ lanphy_write_page_reg(phydev, 5, PTP_RX_VERSION,
+ PTP_MAX_VERSION(0xff) | PTP_MIN_VERSION(0x0));
+ lanphy_write_page_reg(phydev, 5, PTP_TX_VERSION,
+ PTP_MAX_VERSION(0xff) | PTP_MIN_VERSION(0x0));
+
skb_queue_head_init(&ptp_priv->tx_queue);
skb_queue_head_init(&ptp_priv->rx_queue);
INIT_LIST_HEAD(&ptp_priv->rx_ts_list);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index d373953ddc30..367255bb44cd 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1622,13 +1622,19 @@ static int tun_xdp_act(struct tun_struct *tun, struct bpf_prog *xdp_prog,
switch (act) {
case XDP_REDIRECT:
err = xdp_do_redirect(tun->dev, xdp, xdp_prog);
- if (err)
+ if (err) {
+ dev_core_stats_rx_dropped_inc(tun->dev);
return err;
+ }
+ dev_sw_netstats_rx_add(tun->dev, xdp->data_end - xdp->data);
break;
case XDP_TX:
err = tun_xdp_tx(tun->dev, xdp);
- if (err < 0)
+ if (err < 0) {
+ dev_core_stats_rx_dropped_inc(tun->dev);
return err;
+ }
+ dev_sw_netstats_rx_add(tun->dev, xdp->data_end - xdp->data);
break;
case XDP_PASS:
break;
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index a1d34f3e7a9f..5979d904bbbd 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -1082,7 +1082,7 @@ static int iwl_dbg_tlv_override_trig_node(struct iwl_fw_runtime *fwrt,
node_trig = (void *)node_tlv->data;
}

- memcpy(node_trig->data + offset, trig->data, trig_data_len);
+ memcpy((u8 *)node_trig->data + offset, trig->data, trig_data_len);
node_tlv->length = cpu_to_le32(size);

if (policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_CFG) {
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index f0d70ecc0271..71d3e3ba909a 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1226,12 +1226,12 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
* value of the frequency. In such a case, do not abort but
* configure the hardware to the desired frequency forcefully.
*/
- forced = opp_table->rate_clk_single != target_freq;
+ forced = opp_table->rate_clk_single != freq;
}

- ret = _set_opp(dev, opp_table, opp, &target_freq, forced);
+ ret = _set_opp(dev, opp_table, opp, &freq, forced);

- if (target_freq)
+ if (freq)
dev_pm_opp_put(opp);

put_opp_table:
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 332bcc0053a5..498bae2e3403 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -238,7 +238,7 @@ static int __init power_init(void)
if (running_on_qemu && soft_power_reg)
register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_DEFAULT,
qemu_power_off, (void *)soft_power_reg);
- else
+ if (!running_on_qemu || soft_power_reg)
power_task = kthread_run(kpowerswd, (void*)soft_power_reg,
KTHREAD_NAME);
if (IS_ERR(power_task)) {
diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
index 9b12fe8e95c9..dd2e654daf4b 100644
--- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
+++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
@@ -74,30 +74,30 @@ static ssize_t show_perf_status_freq_khz(struct uncore_data *data, char *buf)
}

#define store_uncore_min_max(name, min_max) \
- static ssize_t store_##name(struct device *dev, \
- struct device_attribute *attr, \
+ static ssize_t store_##name(struct kobject *kobj, \
+ struct kobj_attribute *attr, \
const char *buf, size_t count) \
{ \
- struct uncore_data *data = container_of(attr, struct uncore_data, name##_dev_attr);\
+ struct uncore_data *data = container_of(attr, struct uncore_data, name##_kobj_attr);\
\
return store_min_max_freq_khz(data, buf, count, \
min_max); \
}

#define show_uncore_min_max(name, min_max) \
- static ssize_t show_##name(struct device *dev, \
- struct device_attribute *attr, char *buf)\
+ static ssize_t show_##name(struct kobject *kobj, \
+ struct kobj_attribute *attr, char *buf)\
{ \
- struct uncore_data *data = container_of(attr, struct uncore_data, name##_dev_attr);\
+ struct uncore_data *data = container_of(attr, struct uncore_data, name##_kobj_attr);\
\
return show_min_max_freq_khz(data, buf, min_max); \
}

#define show_uncore_perf_status(name) \
- static ssize_t show_##name(struct device *dev, \
- struct device_attribute *attr, char *buf)\
+ static ssize_t show_##name(struct kobject *kobj, \
+ struct kobj_attribute *attr, char *buf)\
{ \
- struct uncore_data *data = container_of(attr, struct uncore_data, name##_dev_attr);\
+ struct uncore_data *data = container_of(attr, struct uncore_data, name##_kobj_attr);\
\
return show_perf_status_freq_khz(data, buf); \
}
@@ -111,11 +111,11 @@ show_uncore_min_max(max_freq_khz, 1);
show_uncore_perf_status(current_freq_khz);

#define show_uncore_data(member_name) \
- static ssize_t show_##member_name(struct device *dev, \
- struct device_attribute *attr, char *buf)\
+ static ssize_t show_##member_name(struct kobject *kobj, \
+ struct kobj_attribute *attr, char *buf)\
{ \
struct uncore_data *data = container_of(attr, struct uncore_data,\
- member_name##_dev_attr);\
+ member_name##_kobj_attr);\
\
return sysfs_emit(buf, "%u\n", \
data->member_name); \
@@ -126,29 +126,29 @@ show_uncore_data(initial_max_freq_khz);

#define init_attribute_rw(_name) \
do { \
- sysfs_attr_init(&data->_name##_dev_attr.attr); \
- data->_name##_dev_attr.show = show_##_name; \
- data->_name##_dev_attr.store = store_##_name; \
- data->_name##_dev_attr.attr.name = #_name; \
- data->_name##_dev_attr.attr.mode = 0644; \
+ sysfs_attr_init(&data->_name##_kobj_attr.attr); \
+ data->_name##_kobj_attr.show = show_##_name; \
+ data->_name##_kobj_attr.store = store_##_name; \
+ data->_name##_kobj_attr.attr.name = #_name; \
+ data->_name##_kobj_attr.attr.mode = 0644; \
} while (0)

#define init_attribute_ro(_name) \
do { \
- sysfs_attr_init(&data->_name##_dev_attr.attr); \
- data->_name##_dev_attr.show = show_##_name; \
- data->_name##_dev_attr.store = NULL; \
- data->_name##_dev_attr.attr.name = #_name; \
- data->_name##_dev_attr.attr.mode = 0444; \
+ sysfs_attr_init(&data->_name##_kobj_attr.attr); \
+ data->_name##_kobj_attr.show = show_##_name; \
+ data->_name##_kobj_attr.store = NULL; \
+ data->_name##_kobj_attr.attr.name = #_name; \
+ data->_name##_kobj_attr.attr.mode = 0444; \
} while (0)

#define init_attribute_root_ro(_name) \
do { \
- sysfs_attr_init(&data->_name##_dev_attr.attr); \
- data->_name##_dev_attr.show = show_##_name; \
- data->_name##_dev_attr.store = NULL; \
- data->_name##_dev_attr.attr.name = #_name; \
- data->_name##_dev_attr.attr.mode = 0400; \
+ sysfs_attr_init(&data->_name##_kobj_attr.attr); \
+ data->_name##_kobj_attr.show = show_##_name; \
+ data->_name##_kobj_attr.store = NULL; \
+ data->_name##_kobj_attr.attr.name = #_name; \
+ data->_name##_kobj_attr.attr.mode = 0400; \
} while (0)

static int create_attr_group(struct uncore_data *data, char *name)
@@ -161,14 +161,14 @@ static int create_attr_group(struct uncore_data *data, char *name)
init_attribute_ro(initial_max_freq_khz);
init_attribute_root_ro(current_freq_khz);

- data->uncore_attrs[index++] = &data->max_freq_khz_dev_attr.attr;
- data->uncore_attrs[index++] = &data->min_freq_khz_dev_attr.attr;
- data->uncore_attrs[index++] = &data->initial_min_freq_khz_dev_attr.attr;
- data->uncore_attrs[index++] = &data->initial_max_freq_khz_dev_attr.attr;
+ data->uncore_attrs[index++] = &data->max_freq_khz_kobj_attr.attr;
+ data->uncore_attrs[index++] = &data->min_freq_khz_kobj_attr.attr;
+ data->uncore_attrs[index++] = &data->initial_min_freq_khz_kobj_attr.attr;
+ data->uncore_attrs[index++] = &data->initial_max_freq_khz_kobj_attr.attr;

ret = uncore_read_freq(data, &freq);
if (!ret)
- data->uncore_attrs[index++] = &data->current_freq_khz_dev_attr.attr;
+ data->uncore_attrs[index++] = &data->current_freq_khz_kobj_attr.attr;

data->uncore_attrs[index] = NULL;

diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.h b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.h
index f5dcfa2fb285..2d9dc3151d6e 100644
--- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.h
+++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.h
@@ -23,11 +23,11 @@
* @die_id: Die id for this instance
* @name: Sysfs entry name for this instance
* @uncore_attr_group: Attribute group storage
- * @max_freq_khz_dev_attr: Storage for device attribute max_freq_khz
- * @mix_freq_khz_dev_attr: Storage for device attribute min_freq_khz
- * @initial_max_freq_khz_dev_attr: Storage for device attribute initial_max_freq_khz
- * @initial_min_freq_khz_dev_attr: Storage for device attribute initial_min_freq_khz
- * @current_freq_khz_dev_attr: Storage for device attribute current_freq_khz
+ * @max_freq_khz_dev_attr: Storage for kobject attribute max_freq_khz
+ * @mix_freq_khz_dev_attr: Storage for kobject attribute min_freq_khz
+ * @initial_max_freq_khz_dev_attr: Storage for kobject attribute initial_max_freq_khz
+ * @initial_min_freq_khz_dev_attr: Storage for kobject attribute initial_min_freq_khz
+ * @current_freq_khz_dev_attr: Storage for kobject attribute current_freq_khz
* @uncore_attrs: Attribute storage for group creation
*
* This structure is used to encapsulate all data related to uncore sysfs
@@ -44,11 +44,11 @@ struct uncore_data {
char name[32];

struct attribute_group uncore_attr_group;
- struct device_attribute max_freq_khz_dev_attr;
- struct device_attribute min_freq_khz_dev_attr;
- struct device_attribute initial_max_freq_khz_dev_attr;
- struct device_attribute initial_min_freq_khz_dev_attr;
- struct device_attribute current_freq_khz_dev_attr;
+ struct kobj_attribute max_freq_khz_kobj_attr;
+ struct kobj_attribute min_freq_khz_kobj_attr;
+ struct kobj_attribute initial_max_freq_khz_kobj_attr;
+ struct kobj_attribute initial_min_freq_khz_kobj_attr;
+ struct kobj_attribute current_freq_khz_kobj_attr;
struct attribute *uncore_attrs[6];
};

diff --git a/drivers/platform/x86/p2sb.c b/drivers/platform/x86/p2sb.c
index 1cf2471d54dd..17cc4b45e023 100644
--- a/drivers/platform/x86/p2sb.c
+++ b/drivers/platform/x86/p2sb.c
@@ -26,6 +26,21 @@ static const struct x86_cpu_id p2sb_cpu_ids[] = {
{}
};

+/*
+ * Cache BAR0 of P2SB device functions 0 to 7.
+ * TODO: The constant 8 is the number of functions that PCI specification
+ * defines. Same definitions exist tree-wide. Unify this definition and
+ * the other definitions then move to include/uapi/linux/pci.h.
+ */
+#define NR_P2SB_RES_CACHE 8
+
+struct p2sb_res_cache {
+ u32 bus_dev_id;
+ struct resource res;
+};
+
+static struct p2sb_res_cache p2sb_resources[NR_P2SB_RES_CACHE];
+
static int p2sb_get_devfn(unsigned int *devfn)
{
unsigned int fn = P2SB_DEVFN_DEFAULT;
@@ -39,8 +54,16 @@ static int p2sb_get_devfn(unsigned int *devfn)
return 0;
}

+static bool p2sb_valid_resource(struct resource *res)
+{
+ if (res->flags)
+ return true;
+
+ return false;
+}
+
/* Copy resource from the first BAR of the device in question */
-static int p2sb_read_bar0(struct pci_dev *pdev, struct resource *mem)
+static void p2sb_read_bar0(struct pci_dev *pdev, struct resource *mem)
{
struct resource *bar0 = &pdev->resource[0];

@@ -56,49 +79,66 @@ static int p2sb_read_bar0(struct pci_dev *pdev, struct resource *mem)
mem->end = bar0->end;
mem->flags = bar0->flags;
mem->desc = bar0->desc;
-
- return 0;
}

-static int p2sb_scan_and_read(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
+static void p2sb_scan_and_cache_devfn(struct pci_bus *bus, unsigned int devfn)
{
+ struct p2sb_res_cache *cache = &p2sb_resources[PCI_FUNC(devfn)];
struct pci_dev *pdev;
- int ret;

pdev = pci_scan_single_device(bus, devfn);
if (!pdev)
- return -ENODEV;
+ return;

- ret = p2sb_read_bar0(pdev, mem);
+ p2sb_read_bar0(pdev, &cache->res);
+ cache->bus_dev_id = bus->dev.id;

pci_stop_and_remove_bus_device(pdev);
- return ret;
}

-/**
- * p2sb_bar - Get Primary to Sideband (P2SB) bridge device BAR
- * @bus: PCI bus to communicate with
- * @devfn: PCI slot and function to communicate with
- * @mem: memory resource to be filled in
- *
- * The BIOS prevents the P2SB device from being enumerated by the PCI
- * subsystem, so we need to unhide and hide it back to lookup the BAR.
- *
- * if @bus is NULL, the bus 0 in domain 0 will be used.
- * If @devfn is 0, it will be replaced by devfn of the P2SB device.
- *
- * Caller must provide a valid pointer to @mem.
- *
- * Locking is handled by pci_rescan_remove_lock mutex.
- *
- * Return:
- * 0 on success or appropriate errno value on error.
- */
-int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
+static int p2sb_scan_and_cache(struct pci_bus *bus, unsigned int devfn)
+{
+ unsigned int slot, fn;
+
+ if (PCI_FUNC(devfn) == 0) {
+ /*
+ * When function number of the P2SB device is zero, scan it and
+ * other function numbers, and if devices are available, cache
+ * their BAR0s.
+ */
+ slot = PCI_SLOT(devfn);
+ for (fn = 0; fn < NR_P2SB_RES_CACHE; fn++)
+ p2sb_scan_and_cache_devfn(bus, PCI_DEVFN(slot, fn));
+ } else {
+ /* Scan the P2SB device and cache its BAR0 */
+ p2sb_scan_and_cache_devfn(bus, devfn);
+ }
+
+ if (!p2sb_valid_resource(&p2sb_resources[PCI_FUNC(devfn)].res))
+ return -ENOENT;
+
+ return 0;
+}
+
+static struct pci_bus *p2sb_get_bus(struct pci_bus *bus)
+{
+ static struct pci_bus *p2sb_bus;
+
+ bus = bus ?: p2sb_bus;
+ if (bus)
+ return bus;
+
+ /* Assume P2SB is on the bus 0 in domain 0 */
+ p2sb_bus = pci_find_bus(0, 0);
+ return p2sb_bus;
+}
+
+static int p2sb_cache_resources(void)
{
- struct pci_dev *pdev_p2sb;
unsigned int devfn_p2sb;
u32 value = P2SBC_HIDE;
+ struct pci_bus *bus;
+ u16 class;
int ret;

/* Get devfn for P2SB device itself */
@@ -106,8 +146,17 @@ int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
if (ret)
return ret;

- /* if @bus is NULL, use bus 0 in domain 0 */
- bus = bus ?: pci_find_bus(0, 0);
+ bus = p2sb_get_bus(NULL);
+ if (!bus)
+ return -ENODEV;
+
+ /*
+ * When a device with same devfn exists and its device class is not
+ * PCI_CLASS_MEMORY_OTHER for P2SB, do not touch it.
+ */
+ pci_bus_read_config_word(bus, devfn_p2sb, PCI_CLASS_DEVICE, &class);
+ if (!PCI_POSSIBLE_ERROR(class) && class != PCI_CLASS_MEMORY_OTHER)
+ return -ENODEV;

/*
* Prevent concurrent PCI bus scan from seeing the P2SB device and
@@ -115,17 +164,16 @@ int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
*/
pci_lock_rescan_remove();

- /* Unhide the P2SB device, if needed */
+ /*
+ * The BIOS prevents the P2SB device from being enumerated by the PCI
+ * subsystem, so we need to unhide and hide it back to lookup the BAR.
+ * Unhide the P2SB device here, if needed.
+ */
pci_bus_read_config_dword(bus, devfn_p2sb, P2SBC, &value);
if (value & P2SBC_HIDE)
pci_bus_write_config_dword(bus, devfn_p2sb, P2SBC, 0);

- pdev_p2sb = pci_scan_single_device(bus, devfn_p2sb);
- if (devfn)
- ret = p2sb_scan_and_read(bus, devfn, mem);
- else
- ret = p2sb_read_bar0(pdev_p2sb, mem);
- pci_stop_and_remove_bus_device(pdev_p2sb);
+ ret = p2sb_scan_and_cache(bus, devfn_p2sb);

/* Hide the P2SB device, if it was hidden */
if (value & P2SBC_HIDE)
@@ -133,12 +181,62 @@ int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)

pci_unlock_rescan_remove();

- if (ret)
- return ret;
+ return ret;
+}
+
+/**
+ * p2sb_bar - Get Primary to Sideband (P2SB) bridge device BAR
+ * @bus: PCI bus to communicate with
+ * @devfn: PCI slot and function to communicate with
+ * @mem: memory resource to be filled in
+ *
+ * If @bus is NULL, the bus 0 in domain 0 will be used.
+ * If @devfn is 0, it will be replaced by devfn of the P2SB device.
+ *
+ * Caller must provide a valid pointer to @mem.
+ *
+ * Return:
+ * 0 on success or appropriate errno value on error.
+ */
+int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
+{
+ struct p2sb_res_cache *cache;
+ int ret;
+
+ bus = p2sb_get_bus(bus);
+ if (!bus)
+ return -ENODEV;
+
+ if (!devfn) {
+ ret = p2sb_get_devfn(&devfn);
+ if (ret)
+ return ret;
+ }

- if (mem->flags == 0)
+ cache = &p2sb_resources[PCI_FUNC(devfn)];
+ if (cache->bus_dev_id != bus->dev.id)
return -ENODEV;

+ if (!p2sb_valid_resource(&cache->res))
+ return -ENOENT;
+
+ memcpy(mem, &cache->res, sizeof(*mem));
return 0;
}
EXPORT_SYMBOL_GPL(p2sb_bar);
+
+static int __init p2sb_fs_init(void)
+{
+ p2sb_cache_resources();
+ return 0;
+}
+
+/*
+ * pci_rescan_remove_lock to avoid access to unhidden P2SB devices can
+ * not be locked in sysfs pci bus rescan path because of deadlock. To
+ * avoid the deadlock, access to P2SB devices with the lock at an early
+ * step in kernel initialization and cache required resources. This
+ * should happen after subsys_initcall which initializes PCI subsystem
+ * and before device_initcall which requires P2SB resources.
+ */
+fs_initcall(p2sb_fs_init);
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 905ac7910c98..f1af0f674615 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -378,6 +378,7 @@ static void virtio_rpmsg_release_device(struct device *dev)
struct rpmsg_device *rpdev = to_rpmsg_device(dev);
struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);

+ kfree(rpdev->driver_override);
kfree(vch);
}

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 00e2ca7374ec..e0a798923ce0 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -231,7 +231,7 @@ static int cmos_read_time(struct device *dev, struct rtc_time *t)
if (!pm_trace_rtc_valid())
return -EIO;

- ret = mc146818_get_time(t);
+ ret = mc146818_get_time(t, 1000);
if (ret < 0) {
dev_err_ratelimited(dev, "unable to read current time\n");
return ret;
@@ -292,7 +292,7 @@ static int cmos_read_alarm(struct device *dev, struct rtc_wkalrm *t)

/* This not only a rtc_op, but also called directly */
if (!is_valid_irq(cmos->irq))
- return -EIO;
+ return -ETIMEDOUT;

/* Basic alarms only support hour, minute, and seconds fields.
* Some also support day and month, for alarms up to a year in
@@ -307,7 +307,7 @@ static int cmos_read_alarm(struct device *dev, struct rtc_wkalrm *t)
*
* Use the mc146818_avoid_UIP() function to avoid this.
*/
- if (!mc146818_avoid_UIP(cmos_read_alarm_callback, &p))
+ if (!mc146818_avoid_UIP(cmos_read_alarm_callback, 10, &p))
return -EIO;

if (!(p.rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
@@ -556,8 +556,8 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t)
*
* Use mc146818_avoid_UIP() to avoid this.
*/
- if (!mc146818_avoid_UIP(cmos_set_alarm_callback, &p))
- return -EIO;
+ if (!mc146818_avoid_UIP(cmos_set_alarm_callback, 10, &p))
+ return -ETIMEDOUT;

cmos->alarm_expires = rtc_tm_to_time64(&t->time);

@@ -818,18 +818,24 @@ static void rtc_wake_off(struct device *dev)
}

#ifdef CONFIG_X86
-/* Enable use_acpi_alarm mode for Intel platforms no earlier than 2015 */
static void use_acpi_alarm_quirks(void)
{
- if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_INTEL:
+ if (dmi_get_bios_year() < 2015)
+ return;
+ break;
+ case X86_VENDOR_AMD:
+ case X86_VENDOR_HYGON:
+ if (dmi_get_bios_year() < 2021)
+ return;
+ break;
+ default:
return;
-
+ }
if (!is_hpet_enabled())
return;

- if (dmi_get_bios_year() < 2015)
- return;
-
use_acpi_alarm = true;
}
#else
diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c
index f1c09f1db044..651bf3c279c7 100644
--- a/drivers/rtc/rtc-mc146818-lib.c
+++ b/drivers/rtc/rtc-mc146818-lib.c
@@ -8,26 +8,31 @@
#include <linux/acpi.h>
#endif

+#define UIP_RECHECK_DELAY 100 /* usec */
+#define UIP_RECHECK_DELAY_MS (USEC_PER_MSEC / UIP_RECHECK_DELAY)
+#define UIP_RECHECK_LOOPS_MS(x) (x / UIP_RECHECK_DELAY_MS)
+
/*
* Execute a function while the UIP (Update-in-progress) bit of the RTC is
- * unset.
+ * unset. The timeout is configurable by the caller in ms.
*
* Warning: callback may be executed more then once.
*/
bool mc146818_avoid_UIP(void (*callback)(unsigned char seconds, void *param),
+ int timeout,
void *param)
{
int i;
unsigned long flags;
unsigned char seconds;

- for (i = 0; i < 100; i++) {
+ for (i = 0; UIP_RECHECK_LOOPS_MS(i) < timeout; i++) {
spin_lock_irqsave(&rtc_lock, flags);

/*
* Check whether there is an update in progress during which the
* readout is unspecified. The maximum update time is ~2ms. Poll
- * every 100 usec for completion.
+ * for completion.
*
* Store the second value before checking UIP so a long lasting
* NMI which happens to hit after the UIP check cannot make
@@ -37,7 +42,7 @@ bool mc146818_avoid_UIP(void (*callback)(unsigned char seconds, void *param),

if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) {
spin_unlock_irqrestore(&rtc_lock, flags);
- udelay(100);
+ udelay(UIP_RECHECK_DELAY);
continue;
}

@@ -56,7 +61,7 @@ bool mc146818_avoid_UIP(void (*callback)(unsigned char seconds, void *param),
*/
if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) {
spin_unlock_irqrestore(&rtc_lock, flags);
- udelay(100);
+ udelay(UIP_RECHECK_DELAY);
continue;
}

@@ -72,6 +77,10 @@ bool mc146818_avoid_UIP(void (*callback)(unsigned char seconds, void *param),
}
spin_unlock_irqrestore(&rtc_lock, flags);

+ if (UIP_RECHECK_LOOPS_MS(i) >= 100)
+ pr_warn("Reading current time from RTC took around %li ms\n",
+ UIP_RECHECK_LOOPS_MS(i));
+
return true;
}
return false;
@@ -84,7 +93,7 @@ EXPORT_SYMBOL_GPL(mc146818_avoid_UIP);
*/
bool mc146818_does_rtc_work(void)
{
- return mc146818_avoid_UIP(NULL, NULL);
+ return mc146818_avoid_UIP(NULL, 1000, NULL);
}
EXPORT_SYMBOL_GPL(mc146818_does_rtc_work);

@@ -130,15 +139,27 @@ static void mc146818_get_time_callback(unsigned char seconds, void *param_in)
p->ctrl = CMOS_READ(RTC_CONTROL);
}

-int mc146818_get_time(struct rtc_time *time)
+/**
+ * mc146818_get_time - Get the current time from the RTC
+ * @time: pointer to struct rtc_time to store the current time
+ * @timeout: timeout value in ms
+ *
+ * This function reads the current time from the RTC and stores it in the
+ * provided struct rtc_time. The timeout parameter specifies the maximum
+ * time to wait for the RTC to become ready.
+ *
+ * Return: 0 on success, -ETIMEDOUT if the RTC did not become ready within
+ * the specified timeout, or another error code if an error occurred.
+ */
+int mc146818_get_time(struct rtc_time *time, int timeout)
{
struct mc146818_get_time_callback_param p = {
.time = time
};

- if (!mc146818_avoid_UIP(mc146818_get_time_callback, &p)) {
+ if (!mc146818_avoid_UIP(mc146818_get_time_callback, timeout, &p)) {
memset(time, 0, sizeof(*time));
- return -EIO;
+ return -ETIMEDOUT;
}

if (!(p.ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index 934515959ebf..0659aa2863ab 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -425,6 +425,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q,
VFIO_AP_DBF_WARN("%s: gisc registration failed: nisc=%d, isc=%d, apqn=%#04x\n",
__func__, nisc, isc, q->apqn);

+ vfio_unpin_pages(&q->matrix_mdev->vdev, nib, 1);
status.response_code = AP_RESPONSE_INVALID_GISA;
return status;
}
@@ -638,8 +639,7 @@ static bool vfio_ap_mdev_filter_cdoms(struct ap_matrix_mdev *matrix_mdev)
* Return: a boolean value indicating whether the KVM guest's APCB was changed
* by the filtering or not.
*/
-static bool vfio_ap_mdev_filter_matrix(unsigned long *apm, unsigned long *aqm,
- struct ap_matrix_mdev *matrix_mdev)
+static bool vfio_ap_mdev_filter_matrix(struct ap_matrix_mdev *matrix_mdev)
{
unsigned long apid, apqi, apqn;
DECLARE_BITMAP(prev_shadow_apm, AP_DEVICES);
@@ -660,8 +660,9 @@ static bool vfio_ap_mdev_filter_matrix(unsigned long *apm, unsigned long *aqm,
bitmap_and(matrix_mdev->shadow_apcb.aqm, matrix_mdev->matrix.aqm,
(unsigned long *)matrix_dev->info.aqm, AP_DOMAINS);

- for_each_set_bit_inv(apid, apm, AP_DEVICES) {
- for_each_set_bit_inv(apqi, aqm, AP_DOMAINS) {
+ for_each_set_bit_inv(apid, matrix_mdev->shadow_apcb.apm, AP_DEVICES) {
+ for_each_set_bit_inv(apqi, matrix_mdev->shadow_apcb.aqm,
+ AP_DOMAINS) {
/*
* If the APQN is not bound to the vfio_ap device
* driver, then we can't assign it to the guest's
@@ -930,7 +931,6 @@ static ssize_t assign_adapter_store(struct device *dev,
{
int ret;
unsigned long apid;
- DECLARE_BITMAP(apm_delta, AP_DEVICES);
struct ap_matrix_mdev *matrix_mdev = dev_get_drvdata(dev);

mutex_lock(&ap_perms_mutex);
@@ -959,11 +959,8 @@ static ssize_t assign_adapter_store(struct device *dev,
}

vfio_ap_mdev_link_adapter(matrix_mdev, apid);
- memset(apm_delta, 0, sizeof(apm_delta));
- set_bit_inv(apid, apm_delta);

- if (vfio_ap_mdev_filter_matrix(apm_delta,
- matrix_mdev->matrix.aqm, matrix_mdev))
+ if (vfio_ap_mdev_filter_matrix(matrix_mdev))
vfio_ap_mdev_update_guest_apcb(matrix_mdev);

ret = count;
@@ -1139,7 +1136,6 @@ static ssize_t assign_domain_store(struct device *dev,
{
int ret;
unsigned long apqi;
- DECLARE_BITMAP(aqm_delta, AP_DOMAINS);
struct ap_matrix_mdev *matrix_mdev = dev_get_drvdata(dev);

mutex_lock(&ap_perms_mutex);
@@ -1168,11 +1164,8 @@ static ssize_t assign_domain_store(struct device *dev,
}

vfio_ap_mdev_link_domain(matrix_mdev, apqi);
- memset(aqm_delta, 0, sizeof(aqm_delta));
- set_bit_inv(apqi, aqm_delta);

- if (vfio_ap_mdev_filter_matrix(matrix_mdev->matrix.apm, aqm_delta,
- matrix_mdev))
+ if (vfio_ap_mdev_filter_matrix(matrix_mdev))
vfio_ap_mdev_update_guest_apcb(matrix_mdev);

ret = count;
@@ -1858,11 +1851,22 @@ int vfio_ap_mdev_probe_queue(struct ap_device *apdev)
if (matrix_mdev) {
vfio_ap_mdev_link_queue(matrix_mdev, q);

- if (vfio_ap_mdev_filter_matrix(matrix_mdev->matrix.apm,
- matrix_mdev->matrix.aqm,
- matrix_mdev))
+ /*
+ * If we're in the process of handling the adding of adapters or
+ * domains to the host's AP configuration, then let the
+ * vfio_ap device driver's on_scan_complete callback filter the
+ * matrix and update the guest's AP configuration after all of
+ * the new queue devices are probed.
+ */
+ if (!bitmap_empty(matrix_mdev->apm_add, AP_DEVICES) ||
+ !bitmap_empty(matrix_mdev->aqm_add, AP_DOMAINS))
+ goto done;
+
+ if (vfio_ap_mdev_filter_matrix(matrix_mdev))
vfio_ap_mdev_update_guest_apcb(matrix_mdev);
}
+
+done:
dev_set_drvdata(&apdev->device, q);
release_update_locks_for_mdev(matrix_mdev);

@@ -2211,34 +2215,22 @@ void vfio_ap_on_cfg_changed(struct ap_config_info *cur_cfg_info,

static void vfio_ap_mdev_hot_plug_cfg(struct ap_matrix_mdev *matrix_mdev)
{
- bool do_hotplug = false;
- int filter_domains = 0;
- int filter_adapters = 0;
- DECLARE_BITMAP(apm, AP_DEVICES);
- DECLARE_BITMAP(aqm, AP_DOMAINS);
+ bool filter_domains, filter_adapters, filter_cdoms, do_hotplug = false;

mutex_lock(&matrix_mdev->kvm->lock);
mutex_lock(&matrix_dev->mdevs_lock);

- filter_adapters = bitmap_and(apm, matrix_mdev->matrix.apm,
- matrix_mdev->apm_add, AP_DEVICES);
- filter_domains = bitmap_and(aqm, matrix_mdev->matrix.aqm,
- matrix_mdev->aqm_add, AP_DOMAINS);
-
- if (filter_adapters && filter_domains)
- do_hotplug |= vfio_ap_mdev_filter_matrix(apm, aqm, matrix_mdev);
- else if (filter_adapters)
- do_hotplug |=
- vfio_ap_mdev_filter_matrix(apm,
- matrix_mdev->shadow_apcb.aqm,
- matrix_mdev);
- else
- do_hotplug |=
- vfio_ap_mdev_filter_matrix(matrix_mdev->shadow_apcb.apm,
- aqm, matrix_mdev);
+ filter_adapters = bitmap_intersects(matrix_mdev->matrix.apm,
+ matrix_mdev->apm_add, AP_DEVICES);
+ filter_domains = bitmap_intersects(matrix_mdev->matrix.aqm,
+ matrix_mdev->aqm_add, AP_DOMAINS);
+ filter_cdoms = bitmap_intersects(matrix_mdev->matrix.adm,
+ matrix_mdev->adm_add, AP_DOMAINS);
+
+ if (filter_adapters || filter_domains)
+ do_hotplug = vfio_ap_mdev_filter_matrix(matrix_mdev);

- if (bitmap_intersects(matrix_mdev->matrix.adm, matrix_mdev->adm_add,
- AP_DOMAINS))
+ if (filter_cdoms)
do_hotplug |= vfio_ap_mdev_filter_cdoms(matrix_mdev);

if (do_hotplug)
diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 137e7315a3cf..b24955910147 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -19,7 +19,7 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
-#include <linux/spi/spi-mem.h>
+#include <linux/mtd/spi-nor.h>
#include <linux/sysfs.h>
#include <linux/types.h>
#include "spi-bcm-qspi.h"
@@ -1221,7 +1221,7 @@ static int bcm_qspi_exec_mem_op(struct spi_mem *mem,

/* non-aligned and very short transfers are handled by MSPI */
if (!IS_ALIGNED((uintptr_t)addr, 4) || !IS_ALIGNED((uintptr_t)buf, 4) ||
- len < 4)
+ len < 4 || op->cmd.opcode == SPINOR_OP_RDSFDP)
mspi_read = true;

if (!has_bspi(qspi) || mspi_read)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 22d227878bc4..19688f333e0b 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1636,6 +1636,10 @@ static int __spi_pump_transfer_message(struct spi_controller *ctlr,
pm_runtime_put_noidle(ctlr->dev.parent);
dev_err(&ctlr->dev, "Failed to power device: %d\n",
ret);
+
+ msg->status = ret;
+ spi_finalize_current_message(ctlr);
+
return ret;
}
}
diff --git a/drivers/thermal/intel/intel_hfi.c b/drivers/thermal/intel/intel_hfi.c
index a0640f762dc5..750dab3f259e 100644
--- a/drivers/thermal/intel/intel_hfi.c
+++ b/drivers/thermal/intel/intel_hfi.c
@@ -24,6 +24,7 @@
#include <linux/bitops.h>
#include <linux/cpufeature.h>
#include <linux/cpumask.h>
+#include <linux/delay.h>
#include <linux/gfp.h>
#include <linux/io.h>
#include <linux/kernel.h>
@@ -34,7 +35,9 @@
#include <linux/processor.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/suspend.h>
#include <linux/string.h>
+#include <linux/syscore_ops.h>
#include <linux/topology.h>
#include <linux/workqueue.h>

@@ -338,6 +341,52 @@ static void init_hfi_instance(struct hfi_instance *hfi_instance)
hfi_instance->data = hfi_instance->hdr + hfi_features.hdr_size;
}

+/* Caller must hold hfi_instance_lock. */
+static void hfi_enable(void)
+{
+ u64 msr_val;
+
+ rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
+ msr_val |= HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT;
+ wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
+}
+
+static void hfi_set_hw_table(struct hfi_instance *hfi_instance)
+{
+ phys_addr_t hw_table_pa;
+ u64 msr_val;
+
+ hw_table_pa = virt_to_phys(hfi_instance->hw_table);
+ msr_val = hw_table_pa | HW_FEEDBACK_PTR_VALID_BIT;
+ wrmsrl(MSR_IA32_HW_FEEDBACK_PTR, msr_val);
+}
+
+/* Caller must hold hfi_instance_lock. */
+static void hfi_disable(void)
+{
+ u64 msr_val;
+ int i;
+
+ rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
+ msr_val &= ~HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT;
+ wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
+
+ /*
+ * Wait for hardware to acknowledge the disabling of HFI. Some
+ * processors may not do it. Wait for ~2ms. This is a reasonable
+ * time for hardware to complete any pending actions on the HFI
+ * memory.
+ */
+ for (i = 0; i < 2000; i++) {
+ rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val);
+ if (msr_val & PACKAGE_THERM_STATUS_HFI_UPDATED)
+ break;
+
+ udelay(1);
+ cpu_relax();
+ }
+}
+
/**
* intel_hfi_online() - Enable HFI on @cpu
* @cpu: CPU in which the HFI will be enabled
@@ -355,8 +404,6 @@ void intel_hfi_online(unsigned int cpu)
{
struct hfi_instance *hfi_instance;
struct hfi_cpu_info *info;
- phys_addr_t hw_table_pa;
- u64 msr_val;
u16 die_id;

/* Nothing to do if hfi_instances are missing. */
@@ -394,14 +441,16 @@ void intel_hfi_online(unsigned int cpu)
/*
* Hardware is programmed with the physical address of the first page
* frame of the table. Hence, the allocated memory must be page-aligned.
+ *
+ * Some processors do not forget the initial address of the HFI table
+ * even after having been reprogrammed. Keep using the same pages. Do
+ * not free them.
*/
hfi_instance->hw_table = alloc_pages_exact(hfi_features.nr_table_pages,
GFP_KERNEL | __GFP_ZERO);
if (!hfi_instance->hw_table)
goto unlock;

- hw_table_pa = virt_to_phys(hfi_instance->hw_table);
-
/*
* Allocate memory to keep a local copy of the table that
* hardware generates.
@@ -411,16 +460,6 @@ void intel_hfi_online(unsigned int cpu)
if (!hfi_instance->local_table)
goto free_hw_table;

- /*
- * Program the address of the feedback table of this die/package. On
- * some processors, hardware remembers the old address of the HFI table
- * even after having been reprogrammed and re-enabled. Thus, do not free
- * the pages allocated for the table or reprogram the hardware with a
- * new base address. Namely, program the hardware only once.
- */
- msr_val = hw_table_pa | HW_FEEDBACK_PTR_VALID_BIT;
- wrmsrl(MSR_IA32_HW_FEEDBACK_PTR, msr_val);
-
init_hfi_instance(hfi_instance);

INIT_DELAYED_WORK(&hfi_instance->update_work, hfi_update_work_fn);
@@ -429,13 +468,8 @@ void intel_hfi_online(unsigned int cpu)

cpumask_set_cpu(cpu, hfi_instance->cpus);

- /*
- * Enable the hardware feedback interface and never disable it. See
- * comment on programming the address of the table.
- */
- rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
- msr_val |= HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT;
- wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
+ hfi_set_hw_table(hfi_instance);
+ hfi_enable();

unlock:
mutex_unlock(&hfi_instance_lock);
@@ -475,6 +509,10 @@ void intel_hfi_offline(unsigned int cpu)

mutex_lock(&hfi_instance_lock);
cpumask_clear_cpu(cpu, hfi_instance->cpus);
+
+ if (!cpumask_weight(hfi_instance->cpus))
+ hfi_disable();
+
mutex_unlock(&hfi_instance_lock);
}

@@ -523,6 +561,30 @@ static __init int hfi_parse_features(void)
return 0;
}

+static void hfi_do_enable(void)
+{
+ /* This code runs only on the boot CPU. */
+ struct hfi_cpu_info *info = &per_cpu(hfi_cpu_info, 0);
+ struct hfi_instance *hfi_instance = info->hfi_instance;
+
+ /* No locking needed. There is no concurrency with CPU online. */
+ hfi_set_hw_table(hfi_instance);
+ hfi_enable();
+}
+
+static int hfi_do_disable(void)
+{
+ /* No locking needed. There is no concurrency with CPU offline. */
+ hfi_disable();
+
+ return 0;
+}
+
+static struct syscore_ops hfi_pm_ops = {
+ .resume = hfi_do_enable,
+ .suspend = hfi_do_disable,
+};
+
void __init intel_hfi_init(void)
{
struct hfi_instance *hfi_instance;
@@ -554,6 +616,8 @@ void __init intel_hfi_init(void)
if (!hfi_updates_wq)
goto err_nomem;

+ register_syscore_ops(&hfi_pm_ops);
+
return;

err_nomem:
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index db33790e6675..e331b57d6d7d 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -301,8 +301,8 @@

/* Misc definitions */
+#define SC16IS7XX_SPI_READ_BIT BIT(7)
#define SC16IS7XX_FIFO_SIZE (64)
-#define SC16IS7XX_REG_SHIFT 2
#define SC16IS7XX_GPIOS_PER_BANK 4

struct sc16is7xx_devtype {
@@ -323,7 +323,8 @@ struct sc16is7xx_one_config {

struct sc16is7xx_one {
struct uart_port port;
- u8 line;
+ struct regmap *regmap;
+ struct mutex efr_lock; /* EFR registers access */
struct kthread_work tx_work;
struct kthread_work reg_work;
struct kthread_delayed_work ms_work;
@@ -334,7 +335,6 @@ struct sc16is7xx_one {

struct sc16is7xx_port {
const struct sc16is7xx_devtype *devtype;
- struct regmap *regmap;
struct clk *clk;
#ifdef CONFIG_GPIOLIB
struct gpio_chip gpio;
@@ -344,7 +344,6 @@ struct sc16is7xx_port {
unsigned char buf[SC16IS7XX_FIFO_SIZE];
struct kthread_worker kworker;
struct task_struct *kworker_task;
- struct mutex efr_lock;
struct sc16is7xx_one p[];
};

@@ -362,48 +361,35 @@ static void sc16is7xx_stop_tx(struct uart_port *port);
#define to_sc16is7xx_port(p,e) ((container_of((p), struct sc16is7xx_port, e)))
#define to_sc16is7xx_one(p,e) ((container_of((p), struct sc16is7xx_one, e)))

-static int sc16is7xx_line(struct uart_port *port)
-{
- struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
-
- return one->line;
-}
-
static u8 sc16is7xx_port_read(struct uart_port *port, u8 reg)
{
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
unsigned int val = 0;
- const u8 line = sc16is7xx_line(port);

- regmap_read(s->regmap, (reg << SC16IS7XX_REG_SHIFT) | line, &val);
+ regmap_read(one->regmap, reg, &val);

return val;
}

static void sc16is7xx_port_write(struct uart_port *port, u8 reg, u8 val)
{
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
- const u8 line = sc16is7xx_line(port);
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

- regmap_write(s->regmap, (reg << SC16IS7XX_REG_SHIFT) | line, val);
+ regmap_write(one->regmap, reg, val);
}

static void sc16is7xx_fifo_read(struct uart_port *port, unsigned int rxlen)
{
struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
- const u8 line = sc16is7xx_line(port);
- u8 addr = (SC16IS7XX_RHR_REG << SC16IS7XX_REG_SHIFT) | line;
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

- regcache_cache_bypass(s->regmap, true);
- regmap_raw_read(s->regmap, addr, s->buf, rxlen);
- regcache_cache_bypass(s->regmap, false);
+ regmap_noinc_read(one->regmap, SC16IS7XX_RHR_REG, s->buf, rxlen);
}

static void sc16is7xx_fifo_write(struct uart_port *port, u8 to_send)
{
struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
- const u8 line = sc16is7xx_line(port);
- u8 addr = (SC16IS7XX_THR_REG << SC16IS7XX_REG_SHIFT) | line;
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

/*
* Don't send zero-length data, at least on SPI it confuses the chip
@@ -412,32 +398,15 @@ static void sc16is7xx_fifo_write(struct uart_port *port, u8 to_send)
if (unlikely(!to_send))
return;

- regcache_cache_bypass(s->regmap, true);
- regmap_raw_write(s->regmap, addr, s->buf, to_send);
- regcache_cache_bypass(s->regmap, false);
+ regmap_noinc_write(one->regmap, SC16IS7XX_THR_REG, s->buf, to_send);
}

static void sc16is7xx_port_update(struct uart_port *port, u8 reg,
u8 mask, u8 val)
{
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
- const u8 line = sc16is7xx_line(port);
-
- regmap_update_bits(s->regmap, (reg << SC16IS7XX_REG_SHIFT) | line,
- mask, val);
-}
-
-static int sc16is7xx_alloc_line(void)
-{
- int i;
-
- BUILD_BUG_ON(SC16IS7XX_MAX_DEVS > BITS_PER_LONG);
-
- for (i = 0; i < SC16IS7XX_MAX_DEVS; i++)
- if (!test_and_set_bit(i, &sc16is7xx_lines))
- break;
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

- return i;
+ regmap_update_bits(one->regmap, reg, mask, val);
}

static void sc16is7xx_power(struct uart_port *port, int on)
@@ -479,7 +448,7 @@ static const struct sc16is7xx_devtype sc16is762_devtype = {

static bool sc16is7xx_regmap_volatile(struct device *dev, unsigned int reg)
{
- switch (reg >> SC16IS7XX_REG_SHIFT) {
+ switch (reg) {
case SC16IS7XX_RHR_REG:
case SC16IS7XX_IIR_REG:
case SC16IS7XX_LSR_REG:
@@ -498,7 +467,7 @@ static bool sc16is7xx_regmap_volatile(struct device *dev, unsigned int reg)

static bool sc16is7xx_regmap_precious(struct device *dev, unsigned int reg)
{
- switch (reg >> SC16IS7XX_REG_SHIFT) {
+ switch (reg) {
case SC16IS7XX_RHR_REG:
return true;
default:
@@ -508,9 +477,14 @@ static bool sc16is7xx_regmap_precious(struct device *dev, unsigned int reg)
return false;
}

+static bool sc16is7xx_regmap_noinc(struct device *dev, unsigned int reg)
+{
+ return reg == SC16IS7XX_RHR_REG;
+}
+
static int sc16is7xx_set_baud(struct uart_port *port, int baud)
{
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
u8 lcr;
u8 prescaler = 0;
unsigned long clk = port->uartclk, div = clk / 16 / baud;
@@ -533,7 +507,7 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
* because the bulk of the interrupt processing is run as a workqueue
* job in thread context.
*/
- mutex_lock(&s->efr_lock);
+ mutex_lock(&one->efr_lock);

lcr = sc16is7xx_port_read(port, SC16IS7XX_LCR_REG);

@@ -542,17 +516,17 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
SC16IS7XX_LCR_CONF_MODE_B);

/* Enable enhanced features */
- regcache_cache_bypass(s->regmap, true);
+ regcache_cache_bypass(one->regmap, true);
sc16is7xx_port_update(port, SC16IS7XX_EFR_REG,
SC16IS7XX_EFR_ENABLE_BIT,
SC16IS7XX_EFR_ENABLE_BIT);

- regcache_cache_bypass(s->regmap, false);
+ regcache_cache_bypass(one->regmap, false);

/* Put LCR back to the normal mode */
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr);

- mutex_unlock(&s->efr_lock);
+ mutex_unlock(&one->efr_lock);

sc16is7xx_port_update(port, SC16IS7XX_MCR_REG,
SC16IS7XX_MCR_CLKSEL_BIT,
@@ -563,10 +537,10 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
SC16IS7XX_LCR_CONF_MODE_A);

/* Write the new divisor */
- regcache_cache_bypass(s->regmap, true);
+ regcache_cache_bypass(one->regmap, true);
sc16is7xx_port_write(port, SC16IS7XX_DLH_REG, div / 256);
sc16is7xx_port_write(port, SC16IS7XX_DLL_REG, div % 256);
- regcache_cache_bypass(s->regmap, false);
+ regcache_cache_bypass(one->regmap, false);

/* Put LCR back to the normal mode */
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr);
@@ -667,9 +641,9 @@ static void sc16is7xx_handle_tx(struct uart_port *port)
}

if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- spin_lock_irqsave(&port->lock, flags);
+ uart_port_lock_irqsave(port, &flags);
sc16is7xx_stop_tx(port);
- spin_unlock_irqrestore(&port->lock, flags);
+ uart_port_unlock_irqrestore(port, flags);
return;
}

@@ -698,13 +672,15 @@ static void sc16is7xx_handle_tx(struct uart_port *port)
sc16is7xx_fifo_write(port, to_send);
}

- spin_lock_irqsave(&port->lock, flags);
+ uart_port_lock_irqsave(port, &flags);
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(port);

if (uart_circ_empty(xmit))
sc16is7xx_stop_tx(port);
- spin_unlock_irqrestore(&port->lock, flags);
+ else
+ sc16is7xx_ier_set(port, SC16IS7XX_IER_THRI_BIT);
+ uart_port_unlock_irqrestore(port, flags);
}

static unsigned int sc16is7xx_get_hwmctrl(struct uart_port *port)
@@ -722,11 +698,10 @@ static unsigned int sc16is7xx_get_hwmctrl(struct uart_port *port)
static void sc16is7xx_update_mlines(struct sc16is7xx_one *one)
{
struct uart_port *port = &one->port;
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
unsigned long flags;
unsigned int status, changed;

- lockdep_assert_held_once(&s->efr_lock);
+ lockdep_assert_held_once(&one->efr_lock);

status = sc16is7xx_get_hwmctrl(port);
changed = status ^ one->old_mctrl;
@@ -736,7 +711,7 @@ static void sc16is7xx_update_mlines(struct sc16is7xx_one *one)

one->old_mctrl = status;

- spin_lock_irqsave(&port->lock, flags);
+ uart_port_lock_irqsave(port, &flags);
if ((changed & TIOCM_RNG) && (status & TIOCM_RNG))
port->icount.rng++;
if (changed & TIOCM_DSR)
@@ -747,79 +722,82 @@ static void sc16is7xx_update_mlines(struct sc16is7xx_one *one)
uart_handle_cts_change(port, status & TIOCM_CTS);

wake_up_interruptible(&port->state->port.delta_msr_wait);
- spin_unlock_irqrestore(&port->lock, flags);
+ uart_port_unlock_irqrestore(port, flags);
}

static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
{
+ bool rc = true;
+ unsigned int iir, rxlen;
struct uart_port *port = &s->p[portno].port;
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

- do {
- unsigned int iir, rxlen;
- struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
-
- iir = sc16is7xx_port_read(port, SC16IS7XX_IIR_REG);
- if (iir & SC16IS7XX_IIR_NO_INT_BIT)
- return false;
-
- iir &= SC16IS7XX_IIR_ID_MASK;
-
- switch (iir) {
- case SC16IS7XX_IIR_RDI_SRC:
- case SC16IS7XX_IIR_RLSE_SRC:
- case SC16IS7XX_IIR_RTOI_SRC:
- case SC16IS7XX_IIR_XOFFI_SRC:
- rxlen = sc16is7xx_port_read(port, SC16IS7XX_RXLVL_REG);
-
- /*
- * There is a silicon bug that makes the chip report a
- * time-out interrupt but no data in the FIFO. This is
- * described in errata section 18.1.4.
- *
- * When this happens, read one byte from the FIFO to
- * clear the interrupt.
- */
- if (iir == SC16IS7XX_IIR_RTOI_SRC && !rxlen)
- rxlen = 1;
-
- if (rxlen)
- sc16is7xx_handle_rx(port, rxlen, iir);
- break;
+ mutex_lock(&one->efr_lock);
+
+ iir = sc16is7xx_port_read(port, SC16IS7XX_IIR_REG);
+ if (iir & SC16IS7XX_IIR_NO_INT_BIT) {
+ rc = false;
+ goto out_port_irq;
+ }
+
+ iir &= SC16IS7XX_IIR_ID_MASK;
+
+ switch (iir) {
+ case SC16IS7XX_IIR_RDI_SRC:
+ case SC16IS7XX_IIR_RLSE_SRC:
+ case SC16IS7XX_IIR_RTOI_SRC:
+ case SC16IS7XX_IIR_XOFFI_SRC:
+ rxlen = sc16is7xx_port_read(port, SC16IS7XX_RXLVL_REG);
+
+ /*
+ * There is a silicon bug that makes the chip report a
+ * time-out interrupt but no data in the FIFO. This is
+ * described in errata section 18.1.4.
+ *
+ * When this happens, read one byte from the FIFO to
+ * clear the interrupt.
+ */
+ if (iir == SC16IS7XX_IIR_RTOI_SRC && !rxlen)
+ rxlen = 1;
+
+ if (rxlen)
+ sc16is7xx_handle_rx(port, rxlen, iir);
+ break;
/* CTSRTS interrupt comes only when CTS goes inactive */
- case SC16IS7XX_IIR_CTSRTS_SRC:
- case SC16IS7XX_IIR_MSI_SRC:
- sc16is7xx_update_mlines(one);
- break;
- case SC16IS7XX_IIR_THRI_SRC:
- sc16is7xx_handle_tx(port);
- break;
- default:
- dev_err_ratelimited(port->dev,
- "ttySC%i: Unexpected interrupt: %x",
- port->line, iir);
- break;
- }
- } while (0);
- return true;
+ case SC16IS7XX_IIR_CTSRTS_SRC:
+ case SC16IS7XX_IIR_MSI_SRC:
+ sc16is7xx_update_mlines(one);
+ break;
+ case SC16IS7XX_IIR_THRI_SRC:
+ sc16is7xx_handle_tx(port);
+ break;
+ default:
+ dev_err_ratelimited(port->dev,
+ "ttySC%i: Unexpected interrupt: %x",
+ port->line, iir);
+ break;
+ }
+
+out_port_irq:
+ mutex_unlock(&one->efr_lock);
+
+ return rc;
}

static irqreturn_t sc16is7xx_irq(int irq, void *dev_id)
{
- struct sc16is7xx_port *s = (struct sc16is7xx_port *)dev_id;
+ bool keep_polling;

- mutex_lock(&s->efr_lock);
+ struct sc16is7xx_port *s = (struct sc16is7xx_port *)dev_id;

- while (1) {
- bool keep_polling = false;
+ do {
int i;

+ keep_polling = false;
+
for (i = 0; i < s->devtype->nr_uart; ++i)
keep_polling |= sc16is7xx_port_irq(s, i);
- if (!keep_polling)
- break;
- }
-
- mutex_unlock(&s->efr_lock);
+ } while (keep_polling);

return IRQ_HANDLED;
}
@@ -827,20 +805,15 @@ static irqreturn_t sc16is7xx_irq(int irq, void *dev_id)
static void sc16is7xx_tx_proc(struct kthread_work *ws)
{
struct uart_port *port = &(to_sc16is7xx_one(ws, tx_work)->port);
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
- unsigned long flags;
+ struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);

if ((port->rs485.flags & SER_RS485_ENABLED) &&
(port->rs485.delay_rts_before_send > 0))
msleep(port->rs485.delay_rts_before_send);

- mutex_lock(&s->efr_lock);
+ mutex_lock(&one->efr_lock);
sc16is7xx_handle_tx(port);
- mutex_unlock(&s->efr_lock);
-
- spin_lock_irqsave(&port->lock, flags);
- sc16is7xx_ier_set(port, SC16IS7XX_IER_THRI_BIT);
- spin_unlock_irqrestore(&port->lock, flags);
+ mutex_unlock(&one->efr_lock);
}

static void sc16is7xx_reconf_rs485(struct uart_port *port)
@@ -851,14 +824,14 @@ static void sc16is7xx_reconf_rs485(struct uart_port *port)
struct serial_rs485 *rs485 = &port->rs485;
unsigned long irqflags;

- spin_lock_irqsave(&port->lock, irqflags);
+ uart_port_lock_irqsave(port, &irqflags);
if (rs485->flags & SER_RS485_ENABLED) {
efcr |= SC16IS7XX_EFCR_AUTO_RS485_BIT;

if (rs485->flags & SER_RS485_RTS_AFTER_SEND)
efcr |= SC16IS7XX_EFCR_RTS_INVERT_BIT;
}
- spin_unlock_irqrestore(&port->lock, irqflags);
+ uart_port_unlock_irqrestore(port, irqflags);

sc16is7xx_port_update(port, SC16IS7XX_EFCR_REG, mask, efcr);
}
@@ -869,10 +842,10 @@ static void sc16is7xx_reg_proc(struct kthread_work *ws)
struct sc16is7xx_one_config config;
unsigned long irqflags;

- spin_lock_irqsave(&one->port.lock, irqflags);
+ uart_port_lock_irqsave(&one->port, &irqflags);
config = one->config;
memset(&one->config, 0, sizeof(one->config));
- spin_unlock_irqrestore(&one->port.lock, irqflags);
+ uart_port_unlock_irqrestore(&one->port, irqflags);

if (config.flags & SC16IS7XX_RECONF_MD) {
u8 mcr = 0;
@@ -943,9 +916,9 @@ static void sc16is7xx_ms_proc(struct kthread_work *ws)
struct sc16is7xx_port *s = dev_get_drvdata(one->port.dev);

if (one->port.state) {
- mutex_lock(&s->efr_lock);
+ mutex_lock(&one->efr_lock);
sc16is7xx_update_mlines(one);
- mutex_unlock(&s->efr_lock);
+ mutex_unlock(&one->efr_lock);

kthread_queue_delayed_work(&s->kworker, &one->ms_work, HZ);
}
@@ -978,18 +951,18 @@ static void sc16is7xx_throttle(struct uart_port *port)
* value set in MCR register. Stop reading data from RX FIFO so the
* AutoRTS feature will de-activate RTS output.
*/
- spin_lock_irqsave(&port->lock, flags);
+ uart_port_lock_irqsave(port, &flags);
sc16is7xx_ier_clear(port, SC16IS7XX_IER_RDI_BIT);
- spin_unlock_irqrestore(&port->lock, flags);
+ uart_port_unlock_irqrestore(port, flags);
}

static void sc16is7xx_unthrottle(struct uart_port *port)
{
unsigned long flags;

- spin_lock_irqsave(&port->lock, flags);
+ uart_port_lock_irqsave(port, &flags);
sc16is7xx_ier_set(port, SC16IS7XX_IER_RDI_BIT);
- spin_unlock_irqrestore(&port->lock, flags);
+ uart_port_unlock_irqrestore(port, flags);
}

static unsigned int sc16is7xx_tx_empty(struct uart_port *port)
@@ -1029,7 +1002,6 @@ static void sc16is7xx_set_termios(struct uart_port *port,
struct ktermios *termios,
const struct ktermios *old)
{
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
unsigned int lcr, flow = 0;
int baud;
@@ -1088,13 +1060,13 @@ static void sc16is7xx_set_termios(struct uart_port *port,
port->ignore_status_mask |= SC16IS7XX_LSR_BRK_ERROR_MASK;

/* As above, claim the mutex while accessing the EFR. */
- mutex_lock(&s->efr_lock);
+ mutex_lock(&one->efr_lock);

sc16is7xx_port_write(port, SC16IS7XX_LCR_REG,
SC16IS7XX_LCR_CONF_MODE_B);

/* Configure flow control */
- regcache_cache_bypass(s->regmap, true);
+ regcache_cache_bypass(one->regmap, true);
sc16is7xx_port_write(port, SC16IS7XX_XON1_REG, termios->c_cc[VSTART]);
sc16is7xx_port_write(port, SC16IS7XX_XOFF1_REG, termios->c_cc[VSTOP]);

@@ -1113,12 +1085,12 @@ static void sc16is7xx_set_termios(struct uart_port *port,
SC16IS7XX_EFR_REG,
SC16IS7XX_EFR_FLOWCTRL_BITS,
flow);
- regcache_cache_bypass(s->regmap, false);
+ regcache_cache_bypass(one->regmap, false);

/* Update LCR register */
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr);

- mutex_unlock(&s->efr_lock);
+ mutex_unlock(&one->efr_lock);

/* Get baud rate generator configuration */
baud = uart_get_baud_rate(port, termios, old,
@@ -1128,7 +1100,7 @@ static void sc16is7xx_set_termios(struct uart_port *port,
/* Setup baudrate generator */
baud = sc16is7xx_set_baud(port, baud);

- spin_lock_irqsave(&port->lock, flags);
+ uart_port_lock_irqsave(port, &flags);

/* Update timeout according to new baud rate */
uart_update_timeout(port, termios->c_cflag, baud);
@@ -1136,7 +1108,7 @@ static void sc16is7xx_set_termios(struct uart_port *port,
if (UART_ENABLE_MS(port, termios->c_cflag))
sc16is7xx_enable_ms(port);

- spin_unlock_irqrestore(&port->lock, flags);
+ uart_port_unlock_irqrestore(port, flags);
}

static int sc16is7xx_config_rs485(struct uart_port *port, struct ktermios *termios,
@@ -1164,7 +1136,6 @@ static int sc16is7xx_config_rs485(struct uart_port *port, struct ktermios *termi
static int sc16is7xx_startup(struct uart_port *port)
{
struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
- struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
unsigned int val;
unsigned long flags;

@@ -1181,7 +1152,7 @@ static int sc16is7xx_startup(struct uart_port *port)
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG,
SC16IS7XX_LCR_CONF_MODE_B);

- regcache_cache_bypass(s->regmap, true);
+ regcache_cache_bypass(one->regmap, true);

/* Enable write access to enhanced features and internal clock div */
sc16is7xx_port_update(port, SC16IS7XX_EFR_REG,
@@ -1199,7 +1170,7 @@ static int sc16is7xx_startup(struct uart_port *port)
SC16IS7XX_TCR_RX_RESUME(24) |
SC16IS7XX_TCR_RX_HALT(48));

- regcache_cache_bypass(s->regmap, false);
+ regcache_cache_bypass(one->regmap, false);

/* Now, initialize the UART */
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, SC16IS7XX_LCR_WORD_LEN_8);
@@ -1223,9 +1194,9 @@ static int sc16is7xx_startup(struct uart_port *port)
sc16is7xx_port_write(port, SC16IS7XX_IER_REG, val);

/* Enable modem status polling */
- spin_lock_irqsave(&port->lock, flags);
+ uart_port_lock_irqsave(port, &flags);
sc16is7xx_enable_ms(port);
- spin_unlock_irqrestore(&port->lock, flags);
+ uart_port_unlock_irqrestore(port, flags);

return 0;
}
@@ -1427,7 +1398,8 @@ static int sc16is7xx_setup_gpio_chip(struct sc16is7xx_port *s)
/*
* Configure ports designated to operate as modem control lines.
*/
-static int sc16is7xx_setup_mctrl_ports(struct sc16is7xx_port *s)
+static int sc16is7xx_setup_mctrl_ports(struct sc16is7xx_port *s,
+ struct regmap *regmap)
{
int i;
int ret;
@@ -1456,8 +1428,8 @@ static int sc16is7xx_setup_mctrl_ports(struct sc16is7xx_port *s)

if (s->mctrl_mask)
regmap_update_bits(
- s->regmap,
- SC16IS7XX_IOCONTROL_REG << SC16IS7XX_REG_SHIFT,
+ regmap,
+ SC16IS7XX_IOCONTROL_REG,
SC16IS7XX_IOCONTROL_MODEM_A_BIT |
SC16IS7XX_IOCONTROL_MODEM_B_BIT, s->mctrl_mask);

@@ -1472,7 +1444,7 @@ static const struct serial_rs485 sc16is7xx_rs485_supported = {

static int sc16is7xx_probe(struct device *dev,
const struct sc16is7xx_devtype *devtype,
- struct regmap *regmap, int irq)
+ struct regmap *regmaps[], int irq)
{
unsigned long freq = 0, *pfreq = dev_get_platdata(dev);
unsigned int val;
@@ -1480,16 +1452,20 @@ static int sc16is7xx_probe(struct device *dev,
int i, ret;
struct sc16is7xx_port *s;

- if (IS_ERR(regmap))
- return PTR_ERR(regmap);
+ for (i = 0; i < devtype->nr_uart; i++)
+ if (IS_ERR(regmaps[i]))
+ return PTR_ERR(regmaps[i]);

/*
* This device does not have an identification register that would
* tell us if we are really connected to the correct device.
* The best we can do is to check if communication is at all possible.
+ *
+ * Note: regmap[0] is used in the probe function to access registers
+ * common to all channels/ports, as it is guaranteed to be present on
+ * all variants.
*/
- ret = regmap_read(regmap,
- SC16IS7XX_LSR_REG << SC16IS7XX_REG_SHIFT, &val);
+ ret = regmap_read(regmaps[0], SC16IS7XX_LSR_REG, &val);
if (ret < 0)
return -EPROBE_DEFER;

@@ -1523,10 +1499,8 @@ static int sc16is7xx_probe(struct device *dev,
return -EINVAL;
}

- s->regmap = regmap;
s->devtype = devtype;
dev_set_drvdata(dev, s);
- mutex_init(&s->efr_lock);

kthread_init_worker(&s->kworker);
s->kworker_task = kthread_run(kthread_worker_fn, &s->kworker,
@@ -1538,11 +1512,17 @@ static int sc16is7xx_probe(struct device *dev,
sched_set_fifo(s->kworker_task);

/* reset device, purging any pending irq / data */
- regmap_write(s->regmap, SC16IS7XX_IOCONTROL_REG << SC16IS7XX_REG_SHIFT,
- SC16IS7XX_IOCONTROL_SRESET_BIT);
+ regmap_write(regmaps[0], SC16IS7XX_IOCONTROL_REG,
+ SC16IS7XX_IOCONTROL_SRESET_BIT);

for (i = 0; i < devtype->nr_uart; ++i) {
- s->p[i].line = i;
+ s->p[i].port.line = find_first_zero_bit(&sc16is7xx_lines,
+ SC16IS7XX_MAX_DEVS);
+ if (s->p[i].port.line >= SC16IS7XX_MAX_DEVS) {
+ ret = -ERANGE;
+ goto out_ports;
+ }
+
/* Initialize port data */
s->p[i].port.dev = dev;
s->p[i].port.irq = irq;
@@ -1562,12 +1542,9 @@ static int sc16is7xx_probe(struct device *dev,
s->p[i].port.rs485_supported = sc16is7xx_rs485_supported;
s->p[i].port.ops = &sc16is7xx_ops;
s->p[i].old_mctrl = 0;
- s->p[i].port.line = sc16is7xx_alloc_line();
+ s->p[i].regmap = regmaps[i];

- if (s->p[i].port.line >= SC16IS7XX_MAX_DEVS) {
- ret = -ENOMEM;
- goto out_ports;
- }
+ mutex_init(&s->p[i].efr_lock);

ret = uart_get_rs485_mode(&s->p[i].port);
if (ret)
@@ -1584,20 +1561,25 @@ static int sc16is7xx_probe(struct device *dev,
kthread_init_work(&s->p[i].tx_work, sc16is7xx_tx_proc);
kthread_init_work(&s->p[i].reg_work, sc16is7xx_reg_proc);
kthread_init_delayed_work(&s->p[i].ms_work, sc16is7xx_ms_proc);
+
/* Register port */
- uart_add_one_port(&sc16is7xx_uart, &s->p[i].port);
+ ret = uart_add_one_port(&sc16is7xx_uart, &s->p[i].port);
+ if (ret)
+ goto out_ports;
+
+ set_bit(s->p[i].port.line, &sc16is7xx_lines);

/* Enable EFR */
sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_LCR_REG,
SC16IS7XX_LCR_CONF_MODE_B);

- regcache_cache_bypass(s->regmap, true);
+ regcache_cache_bypass(regmaps[i], true);

/* Enable write access to enhanced features */
sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_EFR_REG,
SC16IS7XX_EFR_ENABLE_BIT);

- regcache_cache_bypass(s->regmap, false);
+ regcache_cache_bypass(regmaps[i], false);

/* Restore access to general registers */
sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_LCR_REG, 0x00);
@@ -1617,7 +1599,7 @@ static int sc16is7xx_probe(struct device *dev,
s->p[u].irda_mode = true;
}

- ret = sc16is7xx_setup_mctrl_ports(s);
+ ret = sc16is7xx_setup_mctrl_ports(s, regmaps[0]);
if (ret)
goto out_ports;

@@ -1652,10 +1634,9 @@ static int sc16is7xx_probe(struct device *dev,
#endif

out_ports:
- for (i--; i >= 0; i--) {
- uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port);
- clear_bit(s->p[i].port.line, &sc16is7xx_lines);
- }
+ for (i = 0; i < devtype->nr_uart; i++)
+ if (test_and_clear_bit(s->p[i].port.line, &sc16is7xx_lines))
+ uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port);

kthread_stop(s->kworker_task);

@@ -1677,8 +1658,8 @@ static void sc16is7xx_remove(struct device *dev)

for (i = 0; i < s->devtype->nr_uart; i++) {
kthread_cancel_delayed_work_sync(&s->p[i].ms_work);
- uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port);
- clear_bit(s->p[i].port.line, &sc16is7xx_lines);
+ if (test_and_clear_bit(s->p[i].port.line, &sc16is7xx_lines))
+ uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port);
sc16is7xx_power(&s->p[i].port, 0);
}

@@ -1700,19 +1681,42 @@ static const struct of_device_id __maybe_unused sc16is7xx_dt_ids[] = {
MODULE_DEVICE_TABLE(of, sc16is7xx_dt_ids);

static struct regmap_config regcfg = {
- .reg_bits = 7,
- .pad_bits = 1,
+ .reg_bits = 5,
+ .pad_bits = 3,
.val_bits = 8,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = sc16is7xx_regmap_volatile,
.precious_reg = sc16is7xx_regmap_precious,
+ .writeable_noinc_reg = sc16is7xx_regmap_noinc,
+ .readable_noinc_reg = sc16is7xx_regmap_noinc,
+ .max_raw_read = SC16IS7XX_FIFO_SIZE,
+ .max_raw_write = SC16IS7XX_FIFO_SIZE,
+ .max_register = SC16IS7XX_EFCR_REG,
};

+static const char *sc16is7xx_regmap_name(u8 port_id)
+{
+ switch (port_id) {
+ case 0: return "port0";
+ case 1: return "port1";
+ default:
+ WARN_ON(true);
+ return NULL;
+ }
+}
+
+static unsigned int sc16is7xx_regmap_port_mask(unsigned int port_id)
+{
+ /* CH1,CH0 are at bits 2:1. */
+ return port_id << 1;
+}
+
#ifdef CONFIG_SERIAL_SC16IS7XX_SPI
static int sc16is7xx_spi_probe(struct spi_device *spi)
{
const struct sc16is7xx_devtype *devtype;
- struct regmap *regmap;
+ struct regmap *regmaps[2];
+ unsigned int i;
int ret;

/* Setup SPI bus */
@@ -1737,11 +1741,20 @@ static int sc16is7xx_spi_probe(struct spi_device *spi)
devtype = (struct sc16is7xx_devtype *)id_entry->driver_data;
}

- regcfg.max_register = (0xf << SC16IS7XX_REG_SHIFT) |
- (devtype->nr_uart - 1);
- regmap = devm_regmap_init_spi(spi, &regcfg);
+ for (i = 0; i < devtype->nr_uart; i++) {
+ regcfg.name = sc16is7xx_regmap_name(i);
+ /*
+ * If read_flag_mask is 0, the regmap code sets it to a default
+ * of 0x80. Since we specify our own mask, we must add the READ
+ * bit ourselves:
+ */
+ regcfg.read_flag_mask = sc16is7xx_regmap_port_mask(i) |
+ SC16IS7XX_SPI_READ_BIT;
+ regcfg.write_flag_mask = sc16is7xx_regmap_port_mask(i);
+ regmaps[i] = devm_regmap_init_spi(spi, &regcfg);
+ }

- return sc16is7xx_probe(&spi->dev, devtype, regmap, spi->irq);
+ return sc16is7xx_probe(&spi->dev, devtype, regmaps, spi->irq);
}

static void sc16is7xx_spi_remove(struct spi_device *spi)
@@ -1780,7 +1793,8 @@ static int sc16is7xx_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
const struct sc16is7xx_devtype *devtype;
- struct regmap *regmap;
+ struct regmap *regmaps[2];
+ unsigned int i;

if (i2c->dev.of_node) {
devtype = device_get_match_data(&i2c->dev);
@@ -1790,11 +1804,14 @@ static int sc16is7xx_i2c_probe(struct i2c_client *i2c,
devtype = (struct sc16is7xx_devtype *)id->driver_data;
}

- regcfg.max_register = (0xf << SC16IS7XX_REG_SHIFT) |
- (devtype->nr_uart - 1);
- regmap = devm_regmap_init_i2c(i2c, &regcfg);
+ for (i = 0; i < devtype->nr_uart; i++) {
+ regcfg.name = sc16is7xx_regmap_name(i);
+ regcfg.read_flag_mask = sc16is7xx_regmap_port_mask(i);
+ regcfg.write_flag_mask = sc16is7xx_regmap_port_mask(i);
+ regmaps[i] = devm_regmap_init_i2c(i2c, &regcfg);
+ }

- return sc16is7xx_probe(&i2c->dev, devtype, regmap, i2c->irq);
+ return sc16is7xx_probe(&i2c->dev, devtype, regmaps, i2c->irq);
}

static void sc16is7xx_i2c_remove(struct i2c_client *client)
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 474e94a69b18..9fd4e9ed93b8 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -8333,12 +8333,9 @@ static void ufshcd_async_scan(void *data, async_cookie_t cookie)

out:
pm_runtime_put_sync(hba->dev);
- /*
- * If we failed to initialize the device or the device is not
- * present, turn off the power/clocks etc.
- */
+
if (ret)
- ufshcd_hba_exit(hba);
+ dev_err(hba->dev, "%s failed: %d\n", __func__, ret);
}

static const struct attribute_group *ufshcd_driver_groups[] = {
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 137602d9076f..c4703f6b2089 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -139,6 +139,24 @@ int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state)
return -ETIMEDOUT;
}

+static void dwc3_ep0_reset_state(struct dwc3 *dwc)
+{
+ unsigned int dir;
+
+ if (dwc->ep0state != EP0_SETUP_PHASE) {
+ dir = !!dwc->ep0_expect_in;
+ if (dwc->ep0state == EP0_DATA_PHASE)
+ dwc3_ep0_end_control_data(dwc, dwc->eps[dir]);
+ else
+ dwc3_ep0_end_control_data(dwc, dwc->eps[!dir]);
+
+ dwc->eps[0]->trb_enqueue = 0;
+ dwc->eps[1]->trb_enqueue = 0;
+
+ dwc3_ep0_stall_and_restart(dwc);
+ }
+}
+
/**
* dwc3_ep_inc_trb - increment a trb index.
* @index: Pointer to the TRB index to increment.
@@ -2075,7 +2093,17 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep,

list_for_each_entry(r, &dep->pending_list, list) {
if (r == req) {
- dwc3_gadget_giveback(dep, req, -ECONNRESET);
+ /*
+ * Explicitly check for EP0/1 as dequeue for those
+ * EPs need to be handled differently. Control EP
+ * only deals with one USB req, and giveback will
+ * occur during dwc3_ep0_stall_and_restart(). EP0
+ * requests are never added to started_list.
+ */
+ if (dep->number > 1)
+ dwc3_gadget_giveback(dep, req, -ECONNRESET);
+ else
+ dwc3_ep0_reset_state(dwc);
goto out;
}
}
@@ -2552,16 +2580,9 @@ static int dwc3_gadget_soft_disconnect(struct dwc3 *dwc)
ret = wait_for_completion_timeout(&dwc->ep0_in_setup,
msecs_to_jiffies(DWC3_PULL_UP_TIMEOUT));
if (ret == 0) {
- unsigned int dir;
-
dev_warn(dwc->dev, "wait for SETUP phase timed out\n");
spin_lock_irqsave(&dwc->lock, flags);
- dir = !!dwc->ep0_expect_in;
- if (dwc->ep0state == EP0_DATA_PHASE)
- dwc3_ep0_end_control_data(dwc, dwc->eps[dir]);
- else
- dwc3_ep0_end_control_data(dwc, dwc->eps[!dir]);
- dwc3_ep0_stall_and_restart(dwc);
+ dwc3_ep0_reset_state(dwc);
spin_unlock_irqrestore(&dwc->lock, flags);
}
}
@@ -3848,16 +3869,14 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc)
dwc->setup_packet_pending = false;
usb_gadget_set_state(dwc->gadget, USB_STATE_NOTATTACHED);

- if (dwc->ep0state != EP0_SETUP_PHASE) {
- unsigned int dir;
+ dwc3_ep0_reset_state(dwc);

- dir = !!dwc->ep0_expect_in;
- if (dwc->ep0state == EP0_DATA_PHASE)
- dwc3_ep0_end_control_data(dwc, dwc->eps[dir]);
- else
- dwc3_ep0_end_control_data(dwc, dwc->eps[!dir]);
- dwc3_ep0_stall_and_restart(dwc);
- }
+ /*
+ * Request PM idle to address condition where usage count is
+ * already decremented to zero, but waiting for the disconnect
+ * interrupt to set dwc->connected to FALSE.
+ */
+ pm_request_idle(dwc->dev);
}

static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
@@ -3913,20 +3932,7 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
* phase. So ensure that EP0 is in setup phase by issuing a stall
* and restart if EP0 is not in setup phase.
*/
- if (dwc->ep0state != EP0_SETUP_PHASE) {
- unsigned int dir;
-
- dir = !!dwc->ep0_expect_in;
- if (dwc->ep0state == EP0_DATA_PHASE)
- dwc3_ep0_end_control_data(dwc, dwc->eps[dir]);
- else
- dwc3_ep0_end_control_data(dwc, dwc->eps[!dir]);
-
- dwc->eps[0]->trb_enqueue = 0;
- dwc->eps[1]->trb_enqueue = 0;
-
- dwc3_ep0_stall_and_restart(dwc);
- }
+ dwc3_ep0_reset_state(dwc);

/*
* In the Synopsis DesignWare Cores USB3 Databook Rev. 3.30a
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 07dc4ec73520..cf811b77ee67 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -473,6 +473,14 @@ static int afs_dir_iterate_block(struct afs_vnode *dvnode,
continue;
}

+ /* Don't expose silly rename entries to userspace. */
+ if (nlen > 6 &&
+ dire->u.name[0] == '.' &&
+ ctx->actor != afs_lookup_filldir &&
+ ctx->actor != afs_lookup_one_filldir &&
+ memcmp(dire->u.name, ".__afs", 6) == 0)
+ continue;
+
/* found the next entry */
if (!dir_emit(ctx, dire->u.name, nlen,
ntohl(dire->u.vnode),
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 27d06bb5e5c0..cca1acf2e037 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1552,6 +1552,7 @@ struct btrfs_drop_extents_args {

struct btrfs_file_private {
void *filldir_buf;
+ u64 last_index;
};

diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 1331e56e8e84..c6426080cf0a 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1665,6 +1665,7 @@ int btrfs_inode_delayed_dir_index_count(struct btrfs_inode *inode)
}

bool btrfs_readdir_get_delayed_items(struct inode *inode,
+ u64 last_index,
struct list_head *ins_list,
struct list_head *del_list)
{
@@ -1684,14 +1685,14 @@ bool btrfs_readdir_get_delayed_items(struct inode *inode,

mutex_lock(&delayed_node->mutex);
item = __btrfs_first_delayed_insertion_item(delayed_node);
- while (item) {
+ while (item && item->index <= last_index) {
refcount_inc(&item->refs);
list_add_tail(&item->readdir_list, ins_list);
item = __btrfs_next_delayed_item(item);
}

item = __btrfs_first_delayed_deletion_item(delayed_node);
- while (item) {
+ while (item && item->index <= last_index) {
refcount_inc(&item->refs);
list_add_tail(&item->readdir_list, del_list);
item = __btrfs_next_delayed_item(item);
diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
index 0163ca637a96..fc6fae9640f8 100644
--- a/fs/btrfs/delayed-inode.h
+++ b/fs/btrfs/delayed-inode.h
@@ -148,6 +148,7 @@ void btrfs_destroy_delayed_inodes(struct btrfs_fs_info *fs_info);

/* Used for readdir() */
bool btrfs_readdir_get_delayed_items(struct inode *inode,
+ u64 last_index,
struct list_head *ins_list,
struct list_head *del_list);
void btrfs_readdir_put_delayed_items(struct inode *inode,
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2a7c9088fe1f..0d2cc186974d 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1209,7 +1209,8 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len,
u64 bytes_left, end;
u64 aligned_start = ALIGN(start, 1 << 9);

- if (WARN_ON(start != aligned_start)) {
+ /* Adjust the range to be aligned to 512B sectors if necessary. */
+ if (start != aligned_start) {
len -= aligned_start - start;
len = round_down(len, 1 << 9);
start = aligned_start;
@@ -4206,6 +4207,42 @@ static int prepare_allocation_clustered(struct btrfs_fs_info *fs_info,
return 0;
}

+static int prepare_allocation_zoned(struct btrfs_fs_info *fs_info,
+ struct find_free_extent_ctl *ffe_ctl)
+{
+ if (ffe_ctl->for_treelog) {
+ spin_lock(&fs_info->treelog_bg_lock);
+ if (fs_info->treelog_bg)
+ ffe_ctl->hint_byte = fs_info->treelog_bg;
+ spin_unlock(&fs_info->treelog_bg_lock);
+ } else if (ffe_ctl->for_data_reloc) {
+ spin_lock(&fs_info->relocation_bg_lock);
+ if (fs_info->data_reloc_bg)
+ ffe_ctl->hint_byte = fs_info->data_reloc_bg;
+ spin_unlock(&fs_info->relocation_bg_lock);
+ } else if (ffe_ctl->flags & BTRFS_BLOCK_GROUP_DATA) {
+ struct btrfs_block_group *block_group;
+
+ spin_lock(&fs_info->zone_active_bgs_lock);
+ list_for_each_entry(block_group, &fs_info->zone_active_bgs, active_bg_list) {
+ /*
+ * No lock is OK here because avail is monotinically
+ * decreasing, and this is just a hint.
+ */
+ u64 avail = block_group->zone_capacity - block_group->alloc_offset;
+
+ if (block_group_bits(block_group, ffe_ctl->flags) &&
+ avail >= ffe_ctl->num_bytes) {
+ ffe_ctl->hint_byte = block_group->start;
+ break;
+ }
+ }
+ spin_unlock(&fs_info->zone_active_bgs_lock);
+ }
+
+ return 0;
+}
+
static int prepare_allocation(struct btrfs_fs_info *fs_info,
struct find_free_extent_ctl *ffe_ctl,
struct btrfs_space_info *space_info,
@@ -4216,19 +4253,7 @@ static int prepare_allocation(struct btrfs_fs_info *fs_info,
return prepare_allocation_clustered(fs_info, ffe_ctl,
space_info, ins);
case BTRFS_EXTENT_ALLOC_ZONED:
- if (ffe_ctl->for_treelog) {
- spin_lock(&fs_info->treelog_bg_lock);
- if (fs_info->treelog_bg)
- ffe_ctl->hint_byte = fs_info->treelog_bg;
- spin_unlock(&fs_info->treelog_bg_lock);
- }
- if (ffe_ctl->for_data_reloc) {
- spin_lock(&fs_info->relocation_bg_lock);
- if (fs_info->data_reloc_bg)
- ffe_ctl->hint_byte = fs_info->data_reloc_bg;
- spin_unlock(&fs_info->relocation_bg_lock);
- }
- return 0;
+ return prepare_allocation_zoned(fs_info, ffe_ctl);
default:
BUG();
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9a7d77c410e2..82f92b5652a7 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4689,6 +4689,8 @@ int btrfs_delete_subvolume(struct inode *dir, struct dentry *dentry)
u64 root_flags;
int ret;

+ down_write(&fs_info->subvol_sem);
+
/*
* Don't allow to delete a subvolume with send in progress. This is
* inside the inode lock so the error handling that has to drop the bit
@@ -4700,25 +4702,25 @@ int btrfs_delete_subvolume(struct inode *dir, struct dentry *dentry)
btrfs_warn(fs_info,
"attempt to delete subvolume %llu during send",
dest->root_key.objectid);
- return -EPERM;
+ ret = -EPERM;
+ goto out_up_write;
}
if (atomic_read(&dest->nr_swapfiles)) {
spin_unlock(&dest->root_item_lock);
btrfs_warn(fs_info,
"attempt to delete subvolume %llu with active swapfile",
root->root_key.objectid);
- return -EPERM;
+ ret = -EPERM;
+ goto out_up_write;
}
root_flags = btrfs_root_flags(&dest->root_item);
btrfs_set_root_flags(&dest->root_item,
root_flags | BTRFS_ROOT_SUBVOL_DEAD);
spin_unlock(&dest->root_item_lock);

- down_write(&fs_info->subvol_sem);
-
ret = may_destroy_subvol(dest);
if (ret)
- goto out_up_write;
+ goto out_undead;

btrfs_init_block_rsv(&block_rsv, BTRFS_BLOCK_RSV_TEMP);
/*
@@ -4728,7 +4730,7 @@ int btrfs_delete_subvolume(struct inode *dir, struct dentry *dentry)
*/
ret = btrfs_subvolume_reserve_metadata(root, &block_rsv, 5, true);
if (ret)
- goto out_up_write;
+ goto out_undead;

trans = btrfs_start_transaction(root, 0);
if (IS_ERR(trans)) {
@@ -4794,15 +4796,17 @@ int btrfs_delete_subvolume(struct inode *dir, struct dentry *dentry)
inode->i_flags |= S_DEAD;
out_release:
btrfs_subvolume_release_metadata(root, &block_rsv);
-out_up_write:
- up_write(&fs_info->subvol_sem);
+out_undead:
if (ret) {
spin_lock(&dest->root_item_lock);
root_flags = btrfs_root_flags(&dest->root_item);
btrfs_set_root_flags(&dest->root_item,
root_flags & ~BTRFS_ROOT_SUBVOL_DEAD);
spin_unlock(&dest->root_item_lock);
- } else {
+ }
+out_up_write:
+ up_write(&fs_info->subvol_sem);
+ if (!ret) {
d_invalidate(dentry);
btrfs_prune_dentries(dest);
ASSERT(dest->send_in_progress == 0);
@@ -5948,6 +5952,78 @@ static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry,
return d_splice_alias(inode, dentry);
}

+/*
+ * Find the highest existing sequence number in a directory and then set the
+ * in-memory index_cnt variable to the first free sequence number.
+ */
+static int btrfs_set_inode_index_count(struct btrfs_inode *inode)
+{
+ struct btrfs_root *root = inode->root;
+ struct btrfs_key key, found_key;
+ struct btrfs_path *path;
+ struct extent_buffer *leaf;
+ int ret;
+
+ key.objectid = btrfs_ino(inode);
+ key.type = BTRFS_DIR_INDEX_KEY;
+ key.offset = (u64)-1;
+
+ path = btrfs_alloc_path();
+ if (!path)
+ return -ENOMEM;
+
+ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ if (ret < 0)
+ goto out;
+ /* FIXME: we should be able to handle this */
+ if (ret == 0)
+ goto out;
+ ret = 0;
+
+ if (path->slots[0] == 0) {
+ inode->index_cnt = BTRFS_DIR_START_INDEX;
+ goto out;
+ }
+
+ path->slots[0]--;
+
+ leaf = path->nodes[0];
+ btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
+
+ if (found_key.objectid != btrfs_ino(inode) ||
+ found_key.type != BTRFS_DIR_INDEX_KEY) {
+ inode->index_cnt = BTRFS_DIR_START_INDEX;
+ goto out;
+ }
+
+ inode->index_cnt = found_key.offset + 1;
+out:
+ btrfs_free_path(path);
+ return ret;
+}
+
+static int btrfs_get_dir_last_index(struct btrfs_inode *dir, u64 *index)
+{
+ int ret = 0;
+
+ btrfs_inode_lock(&dir->vfs_inode, 0);
+ if (dir->index_cnt == (u64)-1) {
+ ret = btrfs_inode_delayed_dir_index_count(dir);
+ if (ret) {
+ ret = btrfs_set_inode_index_count(dir);
+ if (ret)
+ goto out;
+ }
+ }
+
+ /* index_cnt is the index number of next new entry, so decrement it. */
+ *index = dir->index_cnt - 1;
+out:
+ btrfs_inode_unlock(&dir->vfs_inode, 0);
+
+ return ret;
+}
+
/*
* All this infrastructure exists because dir_emit can fault, and we are holding
* the tree lock when doing readdir. For now just allocate a buffer and copy
@@ -5960,10 +6036,17 @@ static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry,
static int btrfs_opendir(struct inode *inode, struct file *file)
{
struct btrfs_file_private *private;
+ u64 last_index;
+ int ret;
+
+ ret = btrfs_get_dir_last_index(BTRFS_I(inode), &last_index);
+ if (ret)
+ return ret;

private = kzalloc(sizeof(struct btrfs_file_private), GFP_KERNEL);
if (!private)
return -ENOMEM;
+ private->last_index = last_index;
private->filldir_buf = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (!private->filldir_buf) {
kfree(private);
@@ -5973,6 +6056,19 @@ static int btrfs_opendir(struct inode *inode, struct file *file)
return 0;
}

+static loff_t btrfs_dir_llseek(struct file *file, loff_t offset, int whence)
+{
+ struct btrfs_file_private *private = file->private_data;
+ int ret;
+
+ ret = btrfs_get_dir_last_index(BTRFS_I(file_inode(file)),
+ &private->last_index);
+ if (ret)
+ return ret;
+
+ return generic_file_llseek(file, offset, whence);
+}
+
struct dir_entry {
u64 ino;
u64 offset;
@@ -6030,7 +6126,8 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)

INIT_LIST_HEAD(&ins_list);
INIT_LIST_HEAD(&del_list);
- put = btrfs_readdir_get_delayed_items(inode, &ins_list, &del_list);
+ put = btrfs_readdir_get_delayed_items(inode, private->last_index,
+ &ins_list, &del_list);

again:
key.type = BTRFS_DIR_INDEX_KEY;
@@ -6047,6 +6144,8 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
break;
if (found_key.offset < ctx->pos)
continue;
+ if (found_key.offset > private->last_index)
+ break;
if (btrfs_should_delete_dir_index(&del_list, found_key.offset))
continue;
di = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_dir_item);
@@ -6182,57 +6281,6 @@ static int btrfs_update_time(struct inode *inode, struct timespec64 *now,
return dirty ? btrfs_dirty_inode(inode) : 0;
}

-/*
- * find the highest existing sequence number in a directory
- * and then set the in-memory index_cnt variable to reflect
- * free sequence numbers
- */
-static int btrfs_set_inode_index_count(struct btrfs_inode *inode)
-{
- struct btrfs_root *root = inode->root;
- struct btrfs_key key, found_key;
- struct btrfs_path *path;
- struct extent_buffer *leaf;
- int ret;
-
- key.objectid = btrfs_ino(inode);
- key.type = BTRFS_DIR_INDEX_KEY;
- key.offset = (u64)-1;
-
- path = btrfs_alloc_path();
- if (!path)
- return -ENOMEM;
-
- ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
- if (ret < 0)
- goto out;
- /* FIXME: we should be able to handle this */
- if (ret == 0)
- goto out;
- ret = 0;
-
- if (path->slots[0] == 0) {
- inode->index_cnt = BTRFS_DIR_START_INDEX;
- goto out;
- }
-
- path->slots[0]--;
-
- leaf = path->nodes[0];
- btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
-
- if (found_key.objectid != btrfs_ino(inode) ||
- found_key.type != BTRFS_DIR_INDEX_KEY) {
- inode->index_cnt = BTRFS_DIR_START_INDEX;
- goto out;
- }
-
- inode->index_cnt = found_key.offset + 1;
-out:
- btrfs_free_path(path);
- return ret;
-}
-
/*
* helper to find a free sequence number in a given directory. This current
* code is very simple, later versions will do smarter things in the btree
@@ -11401,7 +11449,7 @@ static const struct inode_operations btrfs_dir_inode_operations = {
};

static const struct file_operations btrfs_dir_file_operations = {
- .llseek = generic_file_llseek,
+ .llseek = btrfs_dir_llseek,
.read = generic_read_dir,
.iterate_shared = btrfs_real_readdir,
.open = btrfs_opendir,
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index e8e4781c48a5..8516c70b5edc 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -780,6 +780,9 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
return -EOPNOTSUPP;
}

+ if (btrfs_root_refs(&root->root_item) == 0)
+ return -ENOENT;
+
if (!test_bit(BTRFS_ROOT_SHAREABLE, &root->state))
return -EINVAL;

@@ -3500,6 +3503,10 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
ret = -EFAULT;
goto out;
}
+ if (range.flags & ~BTRFS_DEFRAG_RANGE_FLAGS_SUPP) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
/* compression requires us to start the IO */
if ((range.flags & BTRFS_DEFRAG_RANGE_COMPRESS)) {
range.flags |= BTRFS_DEFRAG_RANGE_START_IO;
diff --git a/fs/btrfs/ref-verify.c b/fs/btrfs/ref-verify.c
index 4b052d4009d3..8083fe866d2b 100644
--- a/fs/btrfs/ref-verify.c
+++ b/fs/btrfs/ref-verify.c
@@ -883,8 +883,10 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
out_unlock:
spin_unlock(&fs_info->ref_verify_lock);
out:
- if (ret)
+ if (ret) {
+ btrfs_free_ref_cache(fs_info);
btrfs_clear_opt(fs_info->mount_opt, REF_VERIFY);
+ }
return ret;
}

@@ -1015,8 +1017,8 @@ int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info)
}
}
if (ret) {
- btrfs_clear_opt(fs_info->mount_opt, REF_VERIFY);
btrfs_free_ref_cache(fs_info);
+ btrfs_clear_opt(fs_info->mount_opt, REF_VERIFY);
}
btrfs_free_path(path);
return ret;
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 74fef1f49c35..fc468d1079c2 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -1704,6 +1704,10 @@ static ssize_t btrfs_devinfo_scrub_speed_max_store(struct kobject *kobj,
unsigned long long limit;

limit = memparse(buf, &endptr);
+ /* There could be trailing '\n', also catch any typos after the value. */
+ endptr = skip_spaces(endptr);
+ if (*endptr != 0)
+ return -EINVAL;
WRITE_ONCE(device->scrub_speed_max, limit);
return len;
}
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 2b39c7f9226f..02e8398246ae 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -1399,7 +1399,7 @@ static int check_extent_item(struct extent_buffer *leaf,
if (unlikely(ptr + btrfs_extent_inline_ref_size(inline_type) > end)) {
extent_err(leaf, slot,
"inline ref item overflows extent item, ptr %lu iref size %u end %lu",
- ptr, inline_type, end);
+ ptr, btrfs_extent_inline_ref_size(inline_type), end);
return -EUCLEAN;
}

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 6ed09edabea0..72f34f96d015 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1845,8 +1845,8 @@ static int dlm_tcp_bind(struct socket *sock)
memcpy(&src_addr, dlm_local_addr[0], sizeof(src_addr));
make_sockaddr(&src_addr, 0, &addr_len);

- result = sock->ops->bind(sock, (struct sockaddr *)&src_addr,
- addr_len);
+ result = kernel_bind(sock, (struct sockaddr *)&src_addr,
+ addr_len);
if (result < 0) {
/* This *may* not indicate a critical error */
log_print("could not bind for connect: %d", result);
@@ -1860,7 +1860,7 @@ static int dlm_tcp_connect(struct connection *con, struct socket *sock,
{
int ret;

- ret = sock->ops->connect(sock, addr, addr_len, O_NONBLOCK);
+ ret = kernel_connect(sock, addr, addr_len, O_NONBLOCK);
switch (ret) {
case -EINPROGRESS:
fallthrough;
@@ -1900,8 +1900,8 @@ static int dlm_tcp_listen_bind(struct socket *sock)

/* Bind to our port */
make_sockaddr(dlm_local_addr[0], dlm_config.ci_tcp_port, &addr_len);
- return sock->ops->bind(sock, (struct sockaddr *)dlm_local_addr[0],
- addr_len);
+ return kernel_bind(sock, (struct sockaddr *)&dlm_local_addr[0],
+ addr_len);
}

static const struct dlm_proto_ops dlm_tcp_ops = {
@@ -1928,12 +1928,12 @@ static int dlm_sctp_connect(struct connection *con, struct socket *sock,
int ret;

/*
- * Make sock->ops->connect() function return in specified time,
+ * Make kernel_connect() function return in specified time,
* since O_NONBLOCK argument in connect() function does not work here,
* then, we should restore the default value of this attribute.
*/
sock_set_sndtimeo(sock->sk, 5);
- ret = sock->ops->connect(sock, addr, addr_len, 0);
+ ret = kernel_connect(sock, addr, addr_len, 0);
sock_set_sndtimeo(sock->sk, 0);
if (ret < 0)
return ret;
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 51b7ac7166d9..0cfad74374ca 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -122,11 +122,11 @@ static int z_erofs_lz4_prepare_dstpages(struct z_erofs_lz4_decompress_ctx *ctx,
}

static void *z_erofs_lz4_handle_overlap(struct z_erofs_lz4_decompress_ctx *ctx,
- void *inpage, unsigned int *inputmargin, int *maptype,
- bool may_inplace)
+ void *inpage, void *out, unsigned int *inputmargin,
+ int *maptype, bool may_inplace)
{
struct z_erofs_decompress_req *rq = ctx->rq;
- unsigned int omargin, total, i, j;
+ unsigned int omargin, total, i;
struct page **in;
void *src, *tmp;

@@ -136,20 +136,20 @@ static void *z_erofs_lz4_handle_overlap(struct z_erofs_lz4_decompress_ctx *ctx,
omargin < LZ4_DECOMPRESS_INPLACE_MARGIN(rq->inputsize))
goto docopy;

- for (i = 0; i < ctx->inpages; ++i) {
- DBG_BUGON(rq->in[i] == NULL);
- for (j = 0; j < ctx->outpages - ctx->inpages + i; ++j)
- if (rq->out[j] == rq->in[i])
- goto docopy;
- }
+ for (i = 0; i < ctx->inpages; ++i)
+ if (rq->out[ctx->outpages - ctx->inpages + i] !=
+ rq->in[i])
+ goto docopy;
+ kunmap_local(inpage);
+ *maptype = 3;
+ return out + ((ctx->outpages - ctx->inpages) << PAGE_SHIFT);
}

if (ctx->inpages <= 1) {
*maptype = 0;
return inpage;
}
- kunmap_atomic(inpage);
- might_sleep();
+ kunmap_local(inpage);
src = erofs_vm_map_ram(rq->in, ctx->inpages);
if (!src)
return ERR_PTR(-ENOMEM);
@@ -162,7 +162,7 @@ static void *z_erofs_lz4_handle_overlap(struct z_erofs_lz4_decompress_ctx *ctx,
src = erofs_get_pcpubuf(ctx->inpages);
if (!src) {
DBG_BUGON(1);
- kunmap_atomic(inpage);
+ kunmap_local(inpage);
return ERR_PTR(-EFAULT);
}

@@ -173,9 +173,9 @@ static void *z_erofs_lz4_handle_overlap(struct z_erofs_lz4_decompress_ctx *ctx,
min_t(unsigned int, total, PAGE_SIZE - *inputmargin);

if (!inpage)
- inpage = kmap_atomic(*in);
+ inpage = kmap_local_page(*in);
memcpy(tmp, inpage + *inputmargin, page_copycnt);
- kunmap_atomic(inpage);
+ kunmap_local(inpage);
inpage = NULL;
tmp += page_copycnt;
total -= page_copycnt;
@@ -205,16 +205,16 @@ int z_erofs_fixup_insize(struct z_erofs_decompress_req *rq, const char *padbuf,
}

static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
- u8 *out)
+ u8 *dst)
{
struct z_erofs_decompress_req *rq = ctx->rq;
bool support_0padding = false, may_inplace = false;
unsigned int inputmargin;
- u8 *headpage, *src;
+ u8 *out, *headpage, *src;
int ret, maptype;

DBG_BUGON(*rq->in == NULL);
- headpage = kmap_atomic(*rq->in);
+ headpage = kmap_local_page(*rq->in);

/* LZ4 decompression inplace is only safe if zero_padding is enabled */
if (erofs_sb_has_zero_padding(EROFS_SB(rq->sb))) {
@@ -223,7 +223,7 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
min_t(unsigned int, rq->inputsize,
EROFS_BLKSIZ - rq->pageofs_in));
if (ret) {
- kunmap_atomic(headpage);
+ kunmap_local(headpage);
return ret;
}
may_inplace = !((rq->pageofs_in + rq->inputsize) &
@@ -231,11 +231,12 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
}

inputmargin = rq->pageofs_in;
- src = z_erofs_lz4_handle_overlap(ctx, headpage, &inputmargin,
+ src = z_erofs_lz4_handle_overlap(ctx, headpage, dst, &inputmargin,
&maptype, may_inplace);
if (IS_ERR(src))
return PTR_ERR(src);

+ out = dst + rq->pageofs_out;
/* legacy format could compress extra data in a pcluster. */
if (rq->partial_decoding || !support_0padding)
ret = LZ4_decompress_safe_partial(src + inputmargin, out,
@@ -261,12 +262,12 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
}

if (maptype == 0) {
- kunmap_atomic(headpage);
+ kunmap_local(headpage);
} else if (maptype == 1) {
vm_unmap_ram(src, ctx->inpages);
} else if (maptype == 2) {
erofs_put_pcpubuf(src);
- } else {
+ } else if (maptype != 3) {
DBG_BUGON(1);
return -EFAULT;
}
@@ -289,7 +290,7 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq,
/* one optimized fast path only for non bigpcluster cases yet */
if (ctx.inpages == 1 && ctx.outpages == 1 && !rq->inplace_io) {
DBG_BUGON(!*rq->out);
- dst = kmap_atomic(*rq->out);
+ dst = kmap_local_page(*rq->out);
dst_maptype = 0;
goto dstmap_out;
}
@@ -309,9 +310,9 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq,
}

dstmap_out:
- ret = z_erofs_lz4_decompress_mem(&ctx, dst + rq->pageofs_out);
+ ret = z_erofs_lz4_decompress_mem(&ctx, dst);
if (!dst_maptype)
- kunmap_atomic(dst);
+ kunmap_local(dst);
else if (dst_maptype == 2)
vm_unmap_ram(dst, ctx.outpages);
return ret;
diff --git a/fs/exec.c b/fs/exec.c
index 283012eb1aeb..39f7751c90fc 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1410,6 +1410,9 @@ int begin_new_exec(struct linux_binprm * bprm)

out_unlock:
up_write(&me->signal->exec_update_lock);
+ if (!bprm->cred)
+ mutex_unlock(&me->signal->cred_guard_mutex);
+
out:
return retval;
}
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index a6e41746890d..33be702d6e38 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -6421,11 +6421,16 @@ __acquires(bitlock)
static ext4_grpblk_t ext4_last_grp_cluster(struct super_block *sb,
ext4_group_t grp)
{
- if (grp < ext4_get_groups_count(sb))
- return EXT4_CLUSTERS_PER_GROUP(sb) - 1;
- return (ext4_blocks_count(EXT4_SB(sb)->s_es) -
- ext4_group_first_block_no(sb, grp) - 1) >>
- EXT4_CLUSTER_BITS(sb);
+ unsigned long nr_clusters_in_group;
+
+ if (grp < (ext4_get_groups_count(sb) - 1))
+ nr_clusters_in_group = EXT4_CLUSTERS_PER_GROUP(sb);
+ else
+ nr_clusters_in_group = (ext4_blocks_count(EXT4_SB(sb)->s_es) -
+ ext4_group_first_block_no(sb, grp))
+ >> EXT4_CLUSTER_BITS(sb);
+
+ return nr_clusters_in_group - 1;
}

static bool ext4_trim_interrupted(void)
diff --git a/fs/fscache/cache.c b/fs/fscache/cache.c
index d645f8b302a2..9397ed39b0b4 100644
--- a/fs/fscache/cache.c
+++ b/fs/fscache/cache.c
@@ -179,13 +179,14 @@ EXPORT_SYMBOL(fscache_acquire_cache);
void fscache_put_cache(struct fscache_cache *cache,
enum fscache_cache_trace where)
{
- unsigned int debug_id = cache->debug_id;
+ unsigned int debug_id;
bool zero;
int ref;

if (IS_ERR_OR_NULL(cache))
return;

+ debug_id = cache->debug_id;
zero = __refcount_dec_and_test(&cache->ref, &ref);
trace_fscache_cache(debug_id, ref - 1, where);

diff --git a/fs/ioctl.c b/fs/ioctl.c
index 80ac36aea913..2bd05509295a 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -916,8 +916,7 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
if (!f.file)
return -EBADF;

- /* RED-PEN how should LSM module know it's handling 32bit? */
- error = security_file_ioctl(f.file, cmd, arg);
+ error = security_file_ioctl_compat(f.file, cmd, arg);
if (error)
goto out;

diff --git a/fs/namei.c b/fs/namei.c
index b5578f4ce5d6..9e336b408ed1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3017,20 +3017,14 @@ static struct dentry *lock_two_directories(struct dentry *p1, struct dentry *p2)
p = d_ancestor(p2, p1);
if (p) {
inode_lock_nested(p2->d_inode, I_MUTEX_PARENT);
- inode_lock_nested(p1->d_inode, I_MUTEX_CHILD);
+ inode_lock_nested(p1->d_inode, I_MUTEX_PARENT2);
return p;
}

p = d_ancestor(p1, p2);
- if (p) {
- inode_lock_nested(p1->d_inode, I_MUTEX_PARENT);
- inode_lock_nested(p2->d_inode, I_MUTEX_CHILD);
- return p;
- }
-
- lock_two_inodes(p1->d_inode, p2->d_inode,
- I_MUTEX_PARENT, I_MUTEX_PARENT2);
- return NULL;
+ inode_lock_nested(p1->d_inode, I_MUTEX_PARENT);
+ inode_lock_nested(p2->d_inode, I_MUTEX_PARENT2);
+ return p;
}

/*
@@ -4735,11 +4729,12 @@ SYSCALL_DEFINE2(link, const char __user *, oldname, const char __user *, newname
*
* a) we can get into loop creation.
* b) race potential - two innocent renames can create a loop together.
- * That's where 4.4 screws up. Current fix: serialization on
+ * That's where 4.4BSD screws up. Current fix: serialization on
* sb->s_vfs_rename_mutex. We might be more accurate, but that's another
* story.
- * c) we have to lock _four_ objects - parents and victim (if it exists),
- * and source.
+ * c) we may have to lock up to _four_ objects - parents and victim (if it exists),
+ * and source (if it's a non-directory or a subdirectory that moves to
+ * different parent).
* And that - after we got ->i_mutex on parents (until then we don't know
* whether the target exists). Solution: try to be smart with locking
* order for inodes. We rely on the fact that tree topology may change
@@ -4771,6 +4766,7 @@ int vfs_rename(struct renamedata *rd)
bool new_is_dir = false;
unsigned max_links = new_dir->i_sb->s_max_links;
struct name_snapshot old_name;
+ bool lock_old_subdir, lock_new_subdir;

if (source == target)
return 0;
@@ -4824,15 +4820,32 @@ int vfs_rename(struct renamedata *rd)
take_dentry_name_snapshot(&old_name, old_dentry);
dget(new_dentry);
/*
- * Lock all moved children. Moved directories may need to change parent
- * pointer so they need the lock to prevent against concurrent
- * directory changes moving parent pointer. For regular files we've
- * historically always done this. The lockdep locking subclasses are
- * somewhat arbitrary but RENAME_EXCHANGE in particular can swap
- * regular files and directories so it's difficult to tell which
- * subclasses to use.
+ * Lock children.
+ * The source subdirectory needs to be locked on cross-directory
+ * rename or cross-directory exchange since its parent changes.
+ * The target subdirectory needs to be locked on cross-directory
+ * exchange due to parent change and on any rename due to becoming
+ * a victim.
+ * Non-directories need locking in all cases (for NFS reasons);
+ * they get locked after any subdirectories (in inode address order).
+ *
+ * NOTE: WE ONLY LOCK UNRELATED DIRECTORIES IN CROSS-DIRECTORY CASE.
+ * NEVER, EVER DO THAT WITHOUT ->s_vfs_rename_mutex.
*/
- lock_two_inodes(source, target, I_MUTEX_NORMAL, I_MUTEX_NONDIR2);
+ lock_old_subdir = new_dir != old_dir;
+ lock_new_subdir = new_dir != old_dir || !(flags & RENAME_EXCHANGE);
+ if (is_dir) {
+ if (lock_old_subdir)
+ inode_lock_nested(source, I_MUTEX_CHILD);
+ if (target && (!new_is_dir || lock_new_subdir))
+ inode_lock(target);
+ } else if (new_is_dir) {
+ if (lock_new_subdir)
+ inode_lock_nested(target, I_MUTEX_CHILD);
+ inode_lock(source);
+ } else {
+ lock_two_nondirectories(source, target);
+ }

error = -EPERM;
if (IS_SWAPFILE(source) || (target && IS_SWAPFILE(target)))
@@ -4880,8 +4893,9 @@ int vfs_rename(struct renamedata *rd)
d_exchange(old_dentry, new_dentry);
}
out:
- inode_unlock(source);
- if (target)
+ if (!is_dir || lock_old_subdir)
+ inode_unlock(source);
+ if (target && (!new_is_dir || lock_new_subdir))
inode_unlock(target);
dput(new_dentry);
if (!error) {
diff --git a/fs/pipe.c b/fs/pipe.c
index 42c7ff41c2db..9873a6030df5 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -436,12 +436,10 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
goto out;
}

-#ifdef CONFIG_WATCH_QUEUE
- if (pipe->watch_queue) {
+ if (pipe_has_watch_queue(pipe)) {
ret = -EXDEV;
goto out;
}
-#endif

/*
* If it wasn't empty we try to merge new data into
@@ -1303,6 +1301,11 @@ int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots)
pipe->tail = tail;
pipe->head = head;

+ if (!pipe_has_watch_queue(pipe)) {
+ pipe->max_usage = nr_slots;
+ pipe->nr_accounted = nr_slots;
+ }
+
spin_unlock_irq(&pipe->rd_wait.lock);

/* This might have made more room for writers */
@@ -1320,10 +1323,8 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned long arg)
unsigned int nr_slots, size;
long ret = 0;

-#ifdef CONFIG_WATCH_QUEUE
- if (pipe->watch_queue)
+ if (pipe_has_watch_queue(pipe))
return -EBUSY;
-#endif

size = round_pipe_size(arg);
nr_slots = size >> PAGE_SHIFT;
@@ -1356,8 +1357,6 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned long arg)
if (ret < 0)
goto out_revert_acct;

- pipe->max_usage = nr_slots;
- pipe->nr_accounted = nr_slots;
return pipe->max_usage * PAGE_SIZE;

out_revert_acct:
@@ -1375,10 +1374,8 @@ struct pipe_inode_info *get_pipe_info(struct file *file, bool for_splice)

if (file->f_op != &pipefifo_fops || !pipe)
return NULL;
-#ifdef CONFIG_WATCH_QUEUE
- if (for_splice && pipe->watch_queue)
+ if (for_splice && pipe_has_watch_queue(pipe))
return NULL;
-#endif
return pipe;
}

diff --git a/fs/smb/server/connection.c b/fs/smb/server/connection.c
index 7977827c6541..09e1e7771592 100644
--- a/fs/smb/server/connection.c
+++ b/fs/smb/server/connection.c
@@ -284,6 +284,7 @@ int ksmbd_conn_handler_loop(void *p)
goto out;

conn->last_active = jiffies;
+ set_freezable();
while (ksmbd_conn_alive(conn)) {
if (try_to_freeze())
continue;
diff --git a/fs/smb/server/ksmbd_netlink.h b/fs/smb/server/ksmbd_netlink.h
index b7521e41402e..0ebf91ffa236 100644
--- a/fs/smb/server/ksmbd_netlink.h
+++ b/fs/smb/server/ksmbd_netlink.h
@@ -304,7 +304,8 @@ enum ksmbd_event {
KSMBD_EVENT_SPNEGO_AUTHEN_REQUEST,
KSMBD_EVENT_SPNEGO_AUTHEN_RESPONSE = 15,

- KSMBD_EVENT_MAX
+ __KSMBD_EVENT_MAX,
+ KSMBD_EVENT_MAX = __KSMBD_EVENT_MAX - 1
};

/*
diff --git a/fs/smb/server/oplock.c b/fs/smb/server/oplock.c
index f1831e26adad..1253e9bde34c 100644
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -105,7 +105,7 @@ static int alloc_lease(struct oplock_info *opinfo, struct lease_ctx_info *lctx)
lease->is_dir = lctx->is_dir;
memcpy(lease->parent_lease_key, lctx->parent_lease_key, SMB2_LEASE_KEY_SIZE);
lease->version = lctx->version;
- lease->epoch = le16_to_cpu(lctx->epoch);
+ lease->epoch = le16_to_cpu(lctx->epoch) + 1;
INIT_LIST_HEAD(&opinfo->lease_entry);
opinfo->o_lease = lease;

@@ -546,6 +546,7 @@ static struct oplock_info *same_client_has_lease(struct ksmbd_inode *ci,
atomic_read(&ci->sop_count)) == 1) {
if (lease->state != SMB2_LEASE_NONE_LE &&
lease->state == (lctx->req_state & lease->state)) {
+ lease->epoch++;
lease->state |= lctx->req_state;
if (lctx->req_state &
SMB2_LEASE_WRITE_CACHING_LE)
@@ -556,13 +557,17 @@ static struct oplock_info *same_client_has_lease(struct ksmbd_inode *ci,
atomic_read(&ci->sop_count)) > 1) {
if (lctx->req_state ==
(SMB2_LEASE_READ_CACHING_LE |
- SMB2_LEASE_HANDLE_CACHING_LE))
+ SMB2_LEASE_HANDLE_CACHING_LE)) {
+ lease->epoch++;
lease->state = lctx->req_state;
+ }
}

if (lctx->req_state && lease->state ==
- SMB2_LEASE_NONE_LE)
+ SMB2_LEASE_NONE_LE) {
+ lease->epoch++;
lease_none_upgrade(opinfo, lctx->req_state);
+ }
}
read_lock(&ci->m_lock);
}
@@ -1035,7 +1040,8 @@ static void copy_lease(struct oplock_info *op1, struct oplock_info *op2)
SMB2_LEASE_KEY_SIZE);
lease2->duration = lease1->duration;
lease2->flags = lease1->flags;
- lease2->epoch = lease1->epoch++;
+ lease2->epoch = lease1->epoch;
+ lease2->version = lease1->version;
}

static int add_lease_global_list(struct oplock_info *opinfo)
@@ -1453,7 +1459,7 @@ void create_lease_buf(u8 *rbuf, struct lease *lease)
memcpy(buf->lcontext.LeaseKey, lease->lease_key,
SMB2_LEASE_KEY_SIZE);
buf->lcontext.LeaseFlags = lease->flags;
- buf->lcontext.Epoch = cpu_to_le16(++lease->epoch);
+ buf->lcontext.Epoch = cpu_to_le16(lease->epoch);
buf->lcontext.LeaseState = lease->state;
memcpy(buf->lcontext.ParentLeaseKey, lease->parent_lease_key,
SMB2_LEASE_KEY_SIZE);
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 6826b562073e..4cfa45c2727e 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -2321,11 +2321,12 @@ static noinline int create_smb2_pipe(struct ksmbd_work *work)
* @eabuf: set info command buffer
* @buf_len: set info command buffer length
* @path: dentry path for get ea
+ * @get_write: get write access to a mount
*
* Return: 0 on success, otherwise error
*/
static int smb2_set_ea(struct smb2_ea_info *eabuf, unsigned int buf_len,
- const struct path *path)
+ const struct path *path, bool get_write)
{
struct user_namespace *user_ns = mnt_user_ns(path->mnt);
char *attr_name = NULL, *value;
@@ -3013,7 +3014,7 @@ int smb2_open(struct ksmbd_work *work)

rc = smb2_set_ea(&ea_buf->ea,
le32_to_cpu(ea_buf->ccontext.DataLength),
- &path);
+ &path, false);
if (rc == -EOPNOTSUPP)
rc = 0;
else if (rc)
@@ -5578,6 +5579,7 @@ static int smb2_rename(struct ksmbd_work *work,
if (!file_info->ReplaceIfExists)
flags = RENAME_NOREPLACE;

+ smb_break_all_levII_oplock(work, fp, 0);
rc = ksmbd_vfs_rename(work, &fp->filp->f_path, new_name, flags);
out:
kfree(new_name);
@@ -5990,7 +5992,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
return -EINVAL;

return smb2_set_ea((struct smb2_ea_info *)req->Buffer,
- buf_len, &fp->filp->f_path);
+ buf_len, &fp->filp->f_path, true);
}
case FILE_POSITION_INFORMATION:
{
diff --git a/fs/smb/server/transport_ipc.c b/fs/smb/server/transport_ipc.c
index b49d47bdafc9..f29bb03f0dc4 100644
--- a/fs/smb/server/transport_ipc.c
+++ b/fs/smb/server/transport_ipc.c
@@ -74,7 +74,7 @@ static int handle_unsupported_event(struct sk_buff *skb, struct genl_info *info)
static int handle_generic_event(struct sk_buff *skb, struct genl_info *info);
static int ksmbd_ipc_heartbeat_request(void);

-static const struct nla_policy ksmbd_nl_policy[KSMBD_EVENT_MAX] = {
+static const struct nla_policy ksmbd_nl_policy[KSMBD_EVENT_MAX + 1] = {
[KSMBD_EVENT_UNSPEC] = {
.len = 0,
},
@@ -403,7 +403,7 @@ static int handle_generic_event(struct sk_buff *skb, struct genl_info *info)
return -EPERM;
#endif

- if (type >= KSMBD_EVENT_MAX) {
+ if (type > KSMBD_EVENT_MAX) {
WARN_ON(1);
return -EINVAL;
}
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 66ba57a139d2..4d9782e2fab1 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1226,6 +1226,8 @@ static int ubifs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
dir_ui->ui_size = dir->i_size;
mutex_unlock(&dir_ui->ui_mutex);
out_inode:
+ /* Free inode->i_link before inode is marked as bad. */
+ fscrypt_free_inode(inode);
make_bad_inode(inode);
iput(inode);
out_fname:
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 4b179526913f..12662b169b71 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1458,6 +1458,18 @@ xfs_fs_fill_super(

mp->m_super = sb;

+ /*
+ * Copy VFS mount flags from the context now that all parameter parsing
+ * is guaranteed to have been completed by either the old mount API or
+ * the newer fsopen/fsconfig API.
+ */
+ if (fc->sb_flags & SB_RDONLY)
+ set_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
+ if (fc->sb_flags & SB_DIRSYNC)
+ mp->m_features |= XFS_FEAT_DIRSYNC;
+ if (fc->sb_flags & SB_SYNCHRONOUS)
+ mp->m_features |= XFS_FEAT_WSYNC;
+
error = xfs_fs_validate_params(mp);
if (error)
goto out_free_names;
@@ -1915,6 +1927,11 @@ static const struct fs_context_operations xfs_context_ops = {
.free = xfs_fs_free,
};

+/*
+ * WARNING: do not initialise any parameters in this function that depend on
+ * mount option parsing having already been performed as this can be called from
+ * fsopen() before any parameters have been set.
+ */
static int xfs_init_fs_context(
struct fs_context *fc)
{
@@ -1947,16 +1964,6 @@ static int xfs_init_fs_context(
mp->m_logbsize = -1;
mp->m_allocsize_log = 16; /* 64k */

- /*
- * Copy binary VFS mount flags we are interested in.
- */
- if (fc->sb_flags & SB_RDONLY)
- set_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
- if (fc->sb_flags & SB_DIRSYNC)
- mp->m_features |= XFS_FEAT_DIRSYNC;
- if (fc->sb_flags & SB_SYNCHRONOUS)
- mp->m_features |= XFS_FEAT_WSYNC;
-
fc->s_fs_info = mp;
fc->ops = &xfs_context_ops;

diff --git a/include/linux/async.h b/include/linux/async.h
index cce4ad31e8fc..33c9ff4afb49 100644
--- a/include/linux/async.h
+++ b/include/linux/async.h
@@ -90,6 +90,8 @@ async_schedule_dev(async_func_t func, struct device *dev)
return async_schedule_node(func, dev, dev_to_node(dev));
}

+bool async_schedule_dev_nocall(async_func_t func, struct device *dev);
+
/**
* async_schedule_dev_domain - A device specific version of async_schedule_domain
* @func: function to execute asynchronously
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 02b19c508b78..6239a378c0ea 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -165,6 +165,8 @@ LSM_HOOK(int, 0, file_alloc_security, struct file *file)
LSM_HOOK(void, LSM_RET_VOID, file_free_security, struct file *file)
LSM_HOOK(int, 0, file_ioctl, struct file *file, unsigned int cmd,
unsigned long arg)
+LSM_HOOK(int, 0, file_ioctl_compat, struct file *file, unsigned int cmd,
+ unsigned long arg)
LSM_HOOK(int, 0, mmap_addr, unsigned long addr)
LSM_HOOK(int, 0, mmap_file, struct file *file, unsigned long reqprot,
unsigned long prot, unsigned long flags)
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
index b0da04fe087b..34dfcc77f505 100644
--- a/include/linux/mc146818rtc.h
+++ b/include/linux/mc146818rtc.h
@@ -126,10 +126,11 @@ struct cmos_rtc_board_info {
#endif /* ARCH_RTC_LOCATION */

bool mc146818_does_rtc_work(void);
-int mc146818_get_time(struct rtc_time *time);
+int mc146818_get_time(struct rtc_time *time, int timeout);
int mc146818_set_time(struct rtc_time *time);

bool mc146818_avoid_UIP(void (*callback)(unsigned char seconds, void *param),
+ int timeout,
void *param);

#endif /* _MC146818RTC_H */
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 323ee36df683..638d2124d1cb 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1622,6 +1622,7 @@ static inline unsigned long section_nr_to_pfn(unsigned long sec)
#define SUBSECTION_ALIGN_DOWN(pfn) ((pfn) & PAGE_SUBSECTION_MASK)

struct mem_section_usage {
+ struct rcu_head rcu;
#ifdef CONFIG_SPARSEMEM_VMEMMAP
DECLARE_BITMAP(subsection_map, SUBSECTIONS_PER_SECTION);
#endif
@@ -1815,7 +1816,7 @@ static inline int pfn_section_valid(struct mem_section *ms, unsigned long pfn)
{
int idx = subsection_map_index(pfn);

- return test_bit(idx, ms->usage->subsection_map);
+ return test_bit(idx, READ_ONCE(ms->usage)->subsection_map);
}
#else
static inline int pfn_section_valid(struct mem_section *ms, unsigned long pfn)
@@ -1839,6 +1840,7 @@ static inline int pfn_section_valid(struct mem_section *ms, unsigned long pfn)
static inline int pfn_valid(unsigned long pfn)
{
struct mem_section *ms;
+ int ret;

/*
* Ensure the upper PAGE_SHIFT bits are clear in the
@@ -1852,13 +1854,19 @@ static inline int pfn_valid(unsigned long pfn)
if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS)
return 0;
ms = __pfn_to_section(pfn);
- if (!valid_section(ms))
+ rcu_read_lock();
+ if (!valid_section(ms)) {
+ rcu_read_unlock();
return 0;
+ }
/*
* Traditionally early sections always returned pfn_valid() for
* the entire section-sized span.
*/
- return early_section(ms) || pfn_section_valid(ms, pfn);
+ ret = early_section(ms) || pfn_section_valid(ms, pfn);
+ rcu_read_unlock();
+
+ return ret;
}
#endif

diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 28b3c6a67397..1f1e7ae95320 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -124,6 +124,22 @@ struct pipe_buf_operations {
bool (*get)(struct pipe_inode_info *, struct pipe_buffer *);
};

+/**
+ * pipe_has_watch_queue - Check whether the pipe is a watch_queue,
+ * i.e. it was created with O_NOTIFICATION_PIPE
+ * @pipe: The pipe to check
+ *
+ * Return: true if pipe is a watch queue, false otherwise.
+ */
+static inline bool pipe_has_watch_queue(const struct pipe_inode_info *pipe)
+{
+#ifdef CONFIG_WATCH_QUEUE
+ return pipe->watch_queue != NULL;
+#else
+ return false;
+#endif
+}
+
/**
* pipe_empty - Return true if the pipe is empty
* @head: The pipe ring head pointer
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 2bdba700bc3e..7d1ecd9b4373 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -250,8 +250,8 @@ static inline int page_try_dup_anon_rmap(struct page *page, bool compound,
* guarantee the pinned page won't be randomly replaced in the
* future on write faults.
*/
- if (likely(!is_device_private_page(page) &&
- unlikely(page_needs_cow_for_dma(vma, page))))
+ if (likely(!is_device_private_page(page)) &&
+ unlikely(page_needs_cow_for_dma(vma, page)))
return -EBUSY;

ClearPageAnonExclusive(page);
diff --git a/include/linux/security.h b/include/linux/security.h
index a6c97cc57caa..2772f6375f14 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -385,6 +385,8 @@ int security_file_permission(struct file *file, int mask);
int security_file_alloc(struct file *file);
void security_file_free(struct file *file);
int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+int security_file_ioctl_compat(struct file *file, unsigned int cmd,
+ unsigned long arg);
int security_mmap_file(struct file *file, unsigned long prot,
unsigned long flags);
int security_mmap_addr(unsigned long addr);
@@ -969,6 +971,13 @@ static inline int security_file_ioctl(struct file *file, unsigned int cmd,
return 0;
}

+static inline int security_file_ioctl_compat(struct file *file,
+ unsigned int cmd,
+ unsigned long arg)
+{
+ return 0;
+}
+
static inline int security_mmap_file(struct file *file, unsigned long prot,
unsigned long flags)
{
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index d657f2a42a7b..13bf20242b61 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -583,6 +583,85 @@ struct uart_port {
void *private_data; /* generic platform data pointer */
};

+/**
+ * uart_port_lock - Lock the UART port
+ * @up: Pointer to UART port structure
+ */
+static inline void uart_port_lock(struct uart_port *up)
+{
+ spin_lock(&up->lock);
+}
+
+/**
+ * uart_port_lock_irq - Lock the UART port and disable interrupts
+ * @up: Pointer to UART port structure
+ */
+static inline void uart_port_lock_irq(struct uart_port *up)
+{
+ spin_lock_irq(&up->lock);
+}
+
+/**
+ * uart_port_lock_irqsave - Lock the UART port, save and disable interrupts
+ * @up: Pointer to UART port structure
+ * @flags: Pointer to interrupt flags storage
+ */
+static inline void uart_port_lock_irqsave(struct uart_port *up, unsigned long *flags)
+{
+ spin_lock_irqsave(&up->lock, *flags);
+}
+
+/**
+ * uart_port_trylock - Try to lock the UART port
+ * @up: Pointer to UART port structure
+ *
+ * Returns: True if lock was acquired, false otherwise
+ */
+static inline bool uart_port_trylock(struct uart_port *up)
+{
+ return spin_trylock(&up->lock);
+}
+
+/**
+ * uart_port_trylock_irqsave - Try to lock the UART port, save and disable interrupts
+ * @up: Pointer to UART port structure
+ * @flags: Pointer to interrupt flags storage
+ *
+ * Returns: True if lock was acquired, false otherwise
+ */
+static inline bool uart_port_trylock_irqsave(struct uart_port *up, unsigned long *flags)
+{
+ return spin_trylock_irqsave(&up->lock, *flags);
+}
+
+/**
+ * uart_port_unlock - Unlock the UART port
+ * @up: Pointer to UART port structure
+ */
+static inline void uart_port_unlock(struct uart_port *up)
+{
+ spin_unlock(&up->lock);
+}
+
+/**
+ * uart_port_unlock_irq - Unlock the UART port and re-enable interrupts
+ * @up: Pointer to UART port structure
+ */
+static inline void uart_port_unlock_irq(struct uart_port *up)
+{
+ spin_unlock_irq(&up->lock);
+}
+
+/**
+ * uart_port_unlock_irqrestore - Unlock the UART port, restore interrupts
+ * @up: Pointer to UART port structure
+ * @flags: The saved interrupt flags for restore
+ */
+static inline void uart_port_unlock_irqrestore(struct uart_port *up, unsigned long flags)
+{
+ spin_unlock_irqrestore(&up->lock, flags);
+}
+
static inline int serial_port_in(struct uart_port *up, int offset)
{
return up->serial_in(up, offset);
diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h
index c953b8c0d2f4..bd4418377bac 100644
--- a/include/linux/skmsg.h
+++ b/include/linux/skmsg.h
@@ -500,12 +500,6 @@ static inline bool sk_psock_strp_enabled(struct sk_psock *psock)
return !!psock->saved_data_ready;
}

-static inline bool sk_is_udp(const struct sock *sk)
-{
- return sk->sk_type == SOCK_DGRAM &&
- sk->sk_protocol == IPPROTO_UDP;
-}
-
#if IS_ENABLED(CONFIG_NET_SOCK_MSG)

#define BPF_F_STRPARSER (1UL << 1)
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index a34b0f9a9972..27a6ba1c0ec4 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -123,6 +123,7 @@ enum landlock_rule_type;
#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
#define __SC_CAST(t, a) (__force t) a
+#define __SC_TYPE(t, a) t
#define __SC_ARGS(t, a) a
#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))

diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index c2b15f7e5516..080968d6e6c5 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -346,4 +346,12 @@ static inline bool inet_csk_has_ulp(struct sock *sk)
return inet_sk(sk)->is_icsk && !!inet_csk(sk)->icsk_ulp_ops;
}

+static inline void inet_init_csk_locks(struct sock *sk)
+{
+ struct inet_connection_sock *icsk = inet_csk(sk);
+
+ spin_lock_init(&icsk->icsk_accept_queue.rskq_lock);
+ spin_lock_init(&icsk->icsk_accept_queue.fastopenq.lock);
+}
+
#endif /* _INET_CONNECTION_SOCK_H */
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index c2432c2addc8..c98890e21401 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -270,11 +270,6 @@ struct inet_sock {
#define IP_CMSG_CHECKSUM BIT(7)
#define IP_CMSG_RECVFRAGSIZE BIT(8)

-static inline bool sk_is_inet(struct sock *sk)
-{
- return sk->sk_family == AF_INET || sk->sk_family == AF_INET6;
-}
-
/**
* sk_to_full_sk - Access to a full socket
* @sk: pointer to a socket
diff --git a/include/net/llc_pdu.h b/include/net/llc_pdu.h
index 49aa79c7b278..581cd37aa98b 100644
--- a/include/net/llc_pdu.h
+++ b/include/net/llc_pdu.h
@@ -262,8 +262,7 @@ static inline void llc_pdu_header_init(struct sk_buff *skb, u8 type,
*/
static inline void llc_pdu_decode_sa(struct sk_buff *skb, u8 *sa)
{
- if (skb->protocol == htons(ETH_P_802_2))
- memcpy(sa, eth_hdr(skb)->h_source, ETH_ALEN);
+ memcpy(sa, eth_hdr(skb)->h_source, ETH_ALEN);
}

/**
@@ -275,8 +274,7 @@ static inline void llc_pdu_decode_sa(struct sk_buff *skb, u8 *sa)
*/
static inline void llc_pdu_decode_da(struct sk_buff *skb, u8 *da)
{
- if (skb->protocol == htons(ETH_P_802_2))
- memcpy(da, eth_hdr(skb)->h_dest, ETH_ALEN);
+ memcpy(da, eth_hdr(skb)->h_dest, ETH_ALEN);
}

/**
diff --git a/include/net/sock.h b/include/net/sock.h
index 6b51e85ae69e..579732d47dfc 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2824,9 +2824,25 @@ static inline void skb_setup_tx_timestamp(struct sk_buff *skb, __u16 tsflags)
&skb_shinfo(skb)->tskey);
}

+static inline bool sk_is_inet(const struct sock *sk)
+{
+ int family = READ_ONCE(sk->sk_family);
+
+ return family == AF_INET || family == AF_INET6;
+}
+
static inline bool sk_is_tcp(const struct sock *sk)
{
- return sk->sk_type == SOCK_STREAM && sk->sk_protocol == IPPROTO_TCP;
+ return sk_is_inet(sk) &&
+ sk->sk_type == SOCK_STREAM &&
+ sk->sk_protocol == IPPROTO_TCP;
+}
+
+static inline bool sk_is_udp(const struct sock *sk)
+{
+ return sk_is_inet(sk) &&
+ sk->sk_type == SOCK_DGRAM &&
+ sk->sk_protocol == IPPROTO_UDP;
}

static inline bool sk_is_stream_unix(const struct sock *sk)
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index d4d4fa0bb362..24b54635bae9 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -585,6 +585,9 @@ struct btrfs_ioctl_clone_range_args {
*/
#define BTRFS_DEFRAG_RANGE_COMPRESS 1
#define BTRFS_DEFRAG_RANGE_START_IO 2
+#define BTRFS_DEFRAG_RANGE_FLAGS_SUPP (BTRFS_DEFRAG_RANGE_COMPRESS | \
+ BTRFS_DEFRAG_RANGE_START_IO)
+
struct btrfs_ioctl_defrag_range_args {
/* start of the defrag operation */
__u64 start;
diff --git a/kernel/async.c b/kernel/async.c
index b2c4ba5686ee..673bba6bdf3a 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -145,6 +145,39 @@ static void async_run_entry_fn(struct work_struct *work)
wake_up(&async_done);
}

+static async_cookie_t __async_schedule_node_domain(async_func_t func,
+ void *data, int node,
+ struct async_domain *domain,
+ struct async_entry *entry)
+{
+ async_cookie_t newcookie;
+ unsigned long flags;
+
+ INIT_LIST_HEAD(&entry->domain_list);
+ INIT_LIST_HEAD(&entry->global_list);
+ INIT_WORK(&entry->work, async_run_entry_fn);
+ entry->func = func;
+ entry->data = data;
+ entry->domain = domain;
+
+ spin_lock_irqsave(&async_lock, flags);
+
+ /* allocate cookie and queue */
+ newcookie = entry->cookie = next_cookie++;
+
+ list_add_tail(&entry->domain_list, &domain->pending);
+ if (domain->registered)
+ list_add_tail(&entry->global_list, &async_global_pending);
+
+ atomic_inc(&entry_count);
+ spin_unlock_irqrestore(&async_lock, flags);
+
+ /* schedule for execution */
+ queue_work_node(node, system_unbound_wq, &entry->work);
+
+ return newcookie;
+}
+
/**
* async_schedule_node_domain - NUMA specific version of async_schedule_domain
* @func: function to execute asynchronously
@@ -186,29 +219,8 @@ async_cookie_t async_schedule_node_domain(async_func_t func, void *data,
func(data, newcookie);
return newcookie;
}
- INIT_LIST_HEAD(&entry->domain_list);
- INIT_LIST_HEAD(&entry->global_list);
- INIT_WORK(&entry->work, async_run_entry_fn);
- entry->func = func;
- entry->data = data;
- entry->domain = domain;
-
- spin_lock_irqsave(&async_lock, flags);
-
- /* allocate cookie and queue */
- newcookie = entry->cookie = next_cookie++;
-
- list_add_tail(&entry->domain_list, &domain->pending);
- if (domain->registered)
- list_add_tail(&entry->global_list, &async_global_pending);
-
- atomic_inc(&entry_count);
- spin_unlock_irqrestore(&async_lock, flags);
-
- /* schedule for execution */
- queue_work_node(node, system_unbound_wq, &entry->work);

- return newcookie;
+ return __async_schedule_node_domain(func, data, node, domain, entry);
}
EXPORT_SYMBOL_GPL(async_schedule_node_domain);

@@ -231,6 +243,35 @@ async_cookie_t async_schedule_node(async_func_t func, void *data, int node)
}
EXPORT_SYMBOL_GPL(async_schedule_node);

+/**
+ * async_schedule_dev_nocall - A simplified variant of async_schedule_dev()
+ * @func: function to execute asynchronously
+ * @dev: device argument to be passed to function
+ *
+ * @dev is used as both the argument for the function and to provide NUMA
+ * context for where to run the function.
+ *
+ * If the asynchronous execution of @func is scheduled successfully, return
+ * true. Otherwise, do nothing and return false, unlike async_schedule_dev()
+ * that will run the function synchronously then.
+ */
+bool async_schedule_dev_nocall(async_func_t func, struct device *dev)
+{
+ struct async_entry *entry;
+
+ entry = kzalloc(sizeof(struct async_entry), GFP_KERNEL);
+
+ /* Give up if there is no memory or too much work. */
+ if (!entry || atomic_read(&entry_count) > MAX_WORK) {
+ kfree(entry);
+ return false;
+ }
+
+ __async_schedule_node_domain(func, dev, dev_to_node(dev),
+ &async_dfl_domain, entry);
+ return true;
+}
+
/**
* async_synchronize_full - synchronize all asynchronous function calls
*
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index cc44c37699de..5ab54ab5ace7 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -605,11 +605,11 @@ static int crc32_threadfn(void *data)
unsigned i;

while (1) {
- wait_event(d->go, atomic_read(&d->ready) ||
+ wait_event(d->go, atomic_read_acquire(&d->ready) ||
kthread_should_stop());
if (kthread_should_stop()) {
d->thr = NULL;
- atomic_set(&d->stop, 1);
+ atomic_set_release(&d->stop, 1);
wake_up(&d->done);
break;
}
@@ -618,7 +618,7 @@ static int crc32_threadfn(void *data)
for (i = 0; i < d->run_threads; i++)
*d->crc32 = crc32_le(*d->crc32,
d->unc[i], *d->unc_len[i]);
- atomic_set(&d->stop, 1);
+ atomic_set_release(&d->stop, 1);
wake_up(&d->done);
}
return 0;
@@ -648,12 +648,12 @@ static int lzo_compress_threadfn(void *data)
struct cmp_data *d = data;

while (1) {
- wait_event(d->go, atomic_read(&d->ready) ||
+ wait_event(d->go, atomic_read_acquire(&d->ready) ||
kthread_should_stop());
if (kthread_should_stop()) {
d->thr = NULL;
d->ret = -1;
- atomic_set(&d->stop, 1);
+ atomic_set_release(&d->stop, 1);
wake_up(&d->done);
break;
}
@@ -662,7 +662,7 @@ static int lzo_compress_threadfn(void *data)
d->ret = lzo1x_1_compress(d->unc, d->unc_len,
d->cmp + LZO_HEADER, &d->cmp_len,
d->wrk);
- atomic_set(&d->stop, 1);
+ atomic_set_release(&d->stop, 1);
wake_up(&d->done);
}
return 0;
@@ -797,7 +797,7 @@ static int save_image_lzo(struct swap_map_handle *handle,

data[thr].unc_len = off;

- atomic_set(&data[thr].ready, 1);
+ atomic_set_release(&data[thr].ready, 1);
wake_up(&data[thr].go);
}

@@ -805,12 +805,12 @@ static int save_image_lzo(struct swap_map_handle *handle,
break;

crc->run_threads = thr;
- atomic_set(&crc->ready, 1);
+ atomic_set_release(&crc->ready, 1);
wake_up(&crc->go);

for (run_threads = thr, thr = 0; thr < run_threads; thr++) {
wait_event(data[thr].done,
- atomic_read(&data[thr].stop));
+ atomic_read_acquire(&data[thr].stop));
atomic_set(&data[thr].stop, 0);

ret = data[thr].ret;
@@ -849,7 +849,7 @@ static int save_image_lzo(struct swap_map_handle *handle,
}
}

- wait_event(crc->done, atomic_read(&crc->stop));
+ wait_event(crc->done, atomic_read_acquire(&crc->stop));
atomic_set(&crc->stop, 0);
}

@@ -1131,12 +1131,12 @@ static int lzo_decompress_threadfn(void *data)
struct dec_data *d = data;

while (1) {
- wait_event(d->go, atomic_read(&d->ready) ||
+ wait_event(d->go, atomic_read_acquire(&d->ready) ||
kthread_should_stop());
if (kthread_should_stop()) {
d->thr = NULL;
d->ret = -1;
- atomic_set(&d->stop, 1);
+ atomic_set_release(&d->stop, 1);
wake_up(&d->done);
break;
}
@@ -1149,7 +1149,7 @@ static int lzo_decompress_threadfn(void *data)
flush_icache_range((unsigned long)d->unc,
(unsigned long)d->unc + d->unc_len);

- atomic_set(&d->stop, 1);
+ atomic_set_release(&d->stop, 1);
wake_up(&d->done);
}
return 0;
@@ -1334,7 +1334,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
}

if (crc->run_threads) {
- wait_event(crc->done, atomic_read(&crc->stop));
+ wait_event(crc->done, atomic_read_acquire(&crc->stop));
atomic_set(&crc->stop, 0);
crc->run_threads = 0;
}
@@ -1370,7 +1370,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
pg = 0;
}

- atomic_set(&data[thr].ready, 1);
+ atomic_set_release(&data[thr].ready, 1);
wake_up(&data[thr].go);
}

@@ -1389,7 +1389,7 @@ static int load_image_lzo(struct swap_map_handle *handle,

for (run_threads = thr, thr = 0; thr < run_threads; thr++) {
wait_event(data[thr].done,
- atomic_read(&data[thr].stop));
+ atomic_read_acquire(&data[thr].stop));
atomic_set(&data[thr].stop, 0);

ret = data[thr].ret;
@@ -1420,7 +1420,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
ret = snapshot_write_next(snapshot);
if (ret <= 0) {
crc->run_threads = thr + 1;
- atomic_set(&crc->ready, 1);
+ atomic_set_release(&crc->ready, 1);
wake_up(&crc->go);
goto out_finish;
}
@@ -1428,13 +1428,13 @@ static int load_image_lzo(struct swap_map_handle *handle,
}

crc->run_threads = thr;
- atomic_set(&crc->ready, 1);
+ atomic_set_release(&crc->ready, 1);
wake_up(&crc->go);
}

out_finish:
if (crc->run_threads) {
- wait_event(crc->done, atomic_read(&crc->stop));
+ wait_event(crc->done, atomic_read_acquire(&crc->stop));
atomic_set(&crc->stop, 0);
}
stop = ktime_get();
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 15df37bc052a..9d7464a90f85 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1051,6 +1051,38 @@ static bool rcu_future_gp_cleanup(struct rcu_node *rnp)
return needmore;
}

+static void swake_up_one_online_ipi(void *arg)
+{
+ struct swait_queue_head *wqh = arg;
+
+ swake_up_one(wqh);
+}
+
+static void swake_up_one_online(struct swait_queue_head *wqh)
+{
+ int cpu = get_cpu();
+
+ /*
+ * If called from rcutree_report_cpu_starting(), wake up
+ * is dangerous that late in the CPU-down hotplug process. The
+ * scheduler might queue an ignored hrtimer. Defer the wake up
+ * to an online CPU instead.
+ */
+ if (unlikely(cpu_is_offline(cpu))) {
+ int target;
+
+ target = cpumask_any_and(housekeeping_cpumask(HK_TYPE_RCU),
+ cpu_online_mask);
+
+ smp_call_function_single(target, swake_up_one_online_ipi,
+ wqh, 0);
+ put_cpu();
+ } else {
+ put_cpu();
+ swake_up_one(wqh);
+ }
+}
+
/*
* Awaken the grace-period kthread. Don't do a self-awaken (unless in an
* interrupt or softirq handler, in which case we just might immediately
@@ -1075,7 +1107,7 @@ static void rcu_gp_kthread_wake(void)
return;
WRITE_ONCE(rcu_state.gp_wake_time, jiffies);
WRITE_ONCE(rcu_state.gp_wake_seq, READ_ONCE(rcu_state.gp_seq));
- swake_up_one(&rcu_state.gp_wq);
+ swake_up_one_online(&rcu_state.gp_wq);
}

/*
diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h
index aa3ec3c3b9f7..6d2cbed96b46 100644
--- a/kernel/rcu/tree_exp.h
+++ b/kernel/rcu/tree_exp.h
@@ -172,7 +172,6 @@ static bool sync_rcu_exp_done_unlocked(struct rcu_node *rnp)
return ret;
}

-
/*
* Report the exit from RCU read-side critical section for the last task
* that queued itself during or before the current expedited preemptible-RCU
@@ -200,7 +199,7 @@ static void __rcu_report_exp_rnp(struct rcu_node *rnp,
raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
if (wake) {
smp_mb(); /* EGP done before wake_up(). */
- swake_up_one(&rcu_state.expedited_wq);
+ swake_up_one_online(&rcu_state.expedited_wq);
}
break;
}
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 1a5d02224d46..8cfdc6b978d7 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -1557,6 +1557,7 @@ void tick_cancel_sched_timer(int cpu)
{
struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu);
ktime_t idle_sleeptime, iowait_sleeptime;
+ unsigned long idle_calls, idle_sleeps;

# ifdef CONFIG_HIGH_RES_TIMERS
if (ts->sched_timer.base)
@@ -1565,9 +1566,13 @@ void tick_cancel_sched_timer(int cpu)

idle_sleeptime = ts->idle_sleeptime;
iowait_sleeptime = ts->iowait_sleeptime;
+ idle_calls = ts->idle_calls;
+ idle_sleeps = ts->idle_sleeps;
memset(ts, 0, sizeof(*ts));
ts->idle_sleeptime = idle_sleeptime;
ts->iowait_sleeptime = iowait_sleeptime;
+ ts->idle_calls = idle_calls;
+ ts->idle_sleeps = idle_sleeps;
}
#endif

diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c
index c774e560f2f9..a4dcf0f24352 100644
--- a/kernel/trace/tracing_map.c
+++ b/kernel/trace/tracing_map.c
@@ -574,7 +574,12 @@ __tracing_map_insert(struct tracing_map *map, void *key, bool lookup_only)
}

memcpy(elt->key, key, map->key_size);
- entry->val = elt;
+ /*
+ * Ensure the initialization is visible and
+ * publish the elt.
+ */
+ smp_wmb();
+ WRITE_ONCE(entry->val, elt);
atomic64_inc(&map->hits);

return entry->val;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4583f8a42d91..c783806eefc9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4921,14 +4921,9 @@ should_reclaim_retry(gfp_t gfp_mask, unsigned order,
else
(*no_progress_loops)++;

- /*
- * Make sure we converge to OOM if we cannot make any progress
- * several times in the row.
- */
- if (*no_progress_loops > MAX_RECLAIM_RETRIES) {
- /* Before OOM, exhaust highatomic_reserve */
- return unreserve_highatomic_pageblock(ac, true);
- }
+ if (*no_progress_loops > MAX_RECLAIM_RETRIES)
+ goto out;
+

/*
* Keep reclaiming pages while there is a chance this will lead
@@ -4971,6 +4966,11 @@ should_reclaim_retry(gfp_t gfp_mask, unsigned order,
schedule_timeout_uninterruptible(1);
else
cond_resched();
+out:
+ /* Before OOM, exhaust highatomic_reserve */
+ if (!ret)
+ return unreserve_highatomic_pageblock(ac, true);
+
return ret;
}

diff --git a/mm/sparse.c b/mm/sparse.c
index e5a8a3a0edd7..05d1e7b6c6db 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -792,6 +792,13 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages,
if (empty) {
unsigned long section_nr = pfn_to_section_nr(pfn);

+ /*
+ * Mark the section invalid so that valid_section()
+ * return false. This prevents code from dereferencing
+ * ms->usage array.
+ */
+ ms->section_mem_map &= ~SECTION_HAS_MEM_MAP;
+
/*
* When removing an early section, the usage map is kept (as the
* usage maps of other sections fall into the same page). It
@@ -800,16 +807,10 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages,
* was allocated during boot.
*/
if (!PageReserved(virt_to_page(ms->usage))) {
- kfree(ms->usage);
- ms->usage = NULL;
+ kfree_rcu(ms->usage, rcu);
+ WRITE_ONCE(ms->usage, NULL);
}
memmap = sparse_decode_mem_map(ms->section_mem_map, section_nr);
- /*
- * Mark the section invalid so that valid_section()
- * return false. This prevents code from dereferencing
- * ms->usage array.
- */
- ms->section_mem_map &= ~SECTION_HAS_MEM_MAP;
}

/*
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index 214532173536..a3b68243fd4b 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -118,12 +118,16 @@ static int vlan_changelink(struct net_device *dev, struct nlattr *tb[],
}
if (data[IFLA_VLAN_INGRESS_QOS]) {
nla_for_each_nested(attr, data[IFLA_VLAN_INGRESS_QOS], rem) {
+ if (nla_type(attr) != IFLA_VLAN_QOS_MAPPING)
+ continue;
m = nla_data(attr);
vlan_dev_set_ingress_priority(dev, m->to, m->from);
}
}
if (data[IFLA_VLAN_EGRESS_QOS]) {
nla_for_each_nested(attr, data[IFLA_VLAN_EGRESS_QOS], rem) {
+ if (nla_type(attr) != IFLA_VLAN_QOS_MAPPING)
+ continue;
m = nla_data(attr);
err = vlan_dev_set_egress_priority(dev, m->from, m->to);
if (err)
diff --git a/net/core/dev.c b/net/core/dev.c
index 0a5566b6f8a2..1ba3662faf0a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -11323,6 +11323,7 @@ static struct pernet_operations __net_initdata netdev_net_ops = {

static void __net_exit default_device_exit_net(struct net *net)
{
+ struct netdev_name_node *name_node, *tmp;
struct net_device *dev, *aux;
/*
* Push all migratable network devices back to the
@@ -11345,6 +11346,14 @@ static void __net_exit default_device_exit_net(struct net *net)
snprintf(fb_name, IFNAMSIZ, "dev%d", dev->ifindex);
if (netdev_name_in_use(&init_net, fb_name))
snprintf(fb_name, IFNAMSIZ, "dev%%d");
+
+ netdev_for_each_altname_safe(dev, name_node, tmp)
+ if (netdev_name_in_use(&init_net, name_node->name)) {
+ netdev_name_node_del(name_node);
+ synchronize_rcu();
+ __netdev_name_node_alt_destroy(name_node);
+ }
+
err = dev_change_net_namespace(dev, &init_net, fb_name);
if (err) {
pr_emerg("%s: failed to move %s to init_net: %d\n",
diff --git a/net/core/dev.h b/net/core/dev.h
index 9ca91457c197..db9ff8cd8d46 100644
--- a/net/core/dev.h
+++ b/net/core/dev.h
@@ -63,6 +63,9 @@ int dev_change_name(struct net_device *dev, const char *newname);

#define netdev_for_each_altname(dev, namenode) \
list_for_each_entry((namenode), &(dev)->name_node->list, list)
+#define netdev_for_each_altname_safe(dev, namenode, next) \
+ list_for_each_entry_safe((namenode), (next), &(dev)->name_node->list, \
+ list)

int netdev_name_node_alt_create(struct net_device *dev, const char *name);
int netdev_name_node_alt_destroy(struct net_device *dev, const char *name);
diff --git a/net/core/request_sock.c b/net/core/request_sock.c
index f35c2e998406..63de5c635842 100644
--- a/net/core/request_sock.c
+++ b/net/core/request_sock.c
@@ -33,9 +33,6 @@

void reqsk_queue_alloc(struct request_sock_queue *queue)
{
- spin_lock_init(&queue->rskq_lock);
-
- spin_lock_init(&queue->fastopenq.lock);
queue->fastopenq.rskq_rst_head = NULL;
queue->fastopenq.rskq_rst_tail = NULL;
queue->fastopenq.qlen = 0;
diff --git a/net/core/sock.c b/net/core/sock.c
index c50a14a02edd..c8803b95ea0d 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -107,6 +107,7 @@
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/tcp.h>
+#include <linux/udp.h>
#include <linux/init.h>
#include <linux/highmem.h>
#include <linux/user_namespace.h>
@@ -4109,8 +4110,14 @@ bool sk_busy_loop_end(void *p, unsigned long start_time)
{
struct sock *sk = p;

- return !skb_queue_empty_lockless(&sk->sk_receive_queue) ||
- sk_busy_loop_timeout(sk, start_time);
+ if (!skb_queue_empty_lockless(&sk->sk_receive_queue))
+ return true;
+
+ if (sk_is_udp(sk) &&
+ !skb_queue_empty_lockless(&udp_sk(sk)->reader_queue))
+ return true;
+
+ return sk_busy_loop_timeout(sk, start_time);
}
EXPORT_SYMBOL(sk_busy_loop_end);
#endif /* CONFIG_NET_RX_BUSY_POLL */
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index c13b8ed63f87..2f646335d218 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -324,6 +324,9 @@ static int inet_create(struct net *net, struct socket *sock, int protocol,
if (INET_PROTOSW_REUSE & answer_flags)
sk->sk_reuse = SK_CAN_REUSE;

+ if (INET_PROTOSW_ICSK & answer_flags)
+ inet_init_csk_locks(sk);
+
inet = inet_sk(sk);
inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 80ce0112e24b..79fa19a36bbd 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -727,6 +727,10 @@ struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
}
if (req)
reqsk_put(req);
+
+ if (newsk)
+ inet_init_csk_locks(newsk);
+
return newsk;
out_err:
newsk = NULL;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0b7844a8d571..90e24c3f6557 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -718,6 +718,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, &sk->sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, &sk->sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index a2f29ca51600..0b42eb8c55aa 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -199,6 +199,9 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
if (INET_PROTOSW_REUSE & answer_flags)
sk->sk_reuse = SK_CAN_REUSE;

+ if (INET_PROTOSW_ICSK & answer_flags)
+ inet_init_csk_locks(sk);
+
inet = inet_sk(sk);
inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;

diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 9ffbc667be6c..19c478bd85bd 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -928,14 +928,15 @@ static int llc_ui_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
*/
static int llc_ui_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
{
+ DECLARE_SOCKADDR(struct sockaddr_llc *, addr, msg->msg_name);
struct sock *sk = sock->sk;
struct llc_sock *llc = llc_sk(sk);
- DECLARE_SOCKADDR(struct sockaddr_llc *, addr, msg->msg_name);
int flags = msg->msg_flags;
int noblock = flags & MSG_DONTWAIT;
+ int rc = -EINVAL, copied = 0, hdrlen, hh_len;
struct sk_buff *skb = NULL;
+ struct net_device *dev;
size_t size = 0;
- int rc = -EINVAL, copied = 0, hdrlen;

dprintk("%s: sending from %02X to %02X\n", __func__,
llc->laddr.lsap, llc->daddr.lsap);
@@ -955,22 +956,29 @@ static int llc_ui_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
if (rc)
goto out;
}
- hdrlen = llc->dev->hard_header_len + llc_ui_header_len(sk, addr);
+ dev = llc->dev;
+ hh_len = LL_RESERVED_SPACE(dev);
+ hdrlen = llc_ui_header_len(sk, addr);
size = hdrlen + len;
- if (size > llc->dev->mtu)
- size = llc->dev->mtu;
+ size = min_t(size_t, size, READ_ONCE(dev->mtu));
copied = size - hdrlen;
rc = -EINVAL;
if (copied < 0)
goto out;
release_sock(sk);
- skb = sock_alloc_send_skb(sk, size, noblock, &rc);
+ skb = sock_alloc_send_skb(sk, hh_len + size, noblock, &rc);
lock_sock(sk);
if (!skb)
goto out;
- skb->dev = llc->dev;
+ if (sock_flag(sk, SOCK_ZAPPED) ||
+ llc->dev != dev ||
+ hdrlen != llc_ui_header_len(sk, addr) ||
+ hh_len != LL_RESERVED_SPACE(dev) ||
+ size > READ_ONCE(dev->mtu))
+ goto out;
+ skb->dev = dev;
skb->protocol = llc_proto_type(addr->sllc_arphrd);
- skb_reserve(skb, hdrlen);
+ skb_reserve(skb, hh_len + hdrlen);
rc = memcpy_from_msg(skb_put(skb, copied), msg, copied);
if (rc)
goto out;
diff --git a/net/llc/llc_core.c b/net/llc/llc_core.c
index 6e387aadffce..4f16d9c88350 100644
--- a/net/llc/llc_core.c
+++ b/net/llc/llc_core.c
@@ -135,22 +135,15 @@ static struct packet_type llc_packet_type __read_mostly = {
.func = llc_rcv,
};

-static struct packet_type llc_tr_packet_type __read_mostly = {
- .type = cpu_to_be16(ETH_P_TR_802_2),
- .func = llc_rcv,
-};
-
static int __init llc_init(void)
{
dev_add_pack(&llc_packet_type);
- dev_add_pack(&llc_tr_packet_type);
return 0;
}

static void __exit llc_exit(void)
{
dev_remove_pack(&llc_packet_type);
- dev_remove_pack(&llc_tr_packet_type);
}

module_init(llc_init);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 49b71453dec3..f3d6c3e4c970 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -396,7 +396,10 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
int i;

for (i = 0; i < ARRAY_SIZE(sta->link); i++) {
- if (!(sta->sta.valid_links & BIT(i)))
+ struct link_sta_info *link_sta;
+
+ link_sta = rcu_access_pointer(sta->link[i]);
+ if (!link_sta)
continue;

sta_remove_link(sta, i, false);
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 2702294ac46c..1edb2138260a 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -24,6 +24,7 @@
#include <net/sock.h>

#define NFT_MODULE_AUTOLOAD_LIMIT (MODULE_NAME_LEN - sizeof("nft-expr-255-"))
+#define NFT_SET_MAX_ANONLEN 16

unsigned int nf_tables_net_id __read_mostly;

@@ -4127,6 +4128,9 @@ static int nf_tables_set_alloc_name(struct nft_ctx *ctx, struct nft_set *set,
if (p[1] != 'd' || strchr(p + 2, '%'))
return -EINVAL;

+ if (strnlen(name, NFT_SET_MAX_ANONLEN) >= NFT_SET_MAX_ANONLEN)
+ return -EINVAL;
+
inuse = (unsigned long *)get_zeroed_page(GFP_KERNEL);
if (inuse == NULL)
return -ENOMEM;
@@ -10444,16 +10448,10 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
data->verdict.code = ntohl(nla_get_be32(tb[NFTA_VERDICT_CODE]));

switch (data->verdict.code) {
- default:
- switch (data->verdict.code & NF_VERDICT_MASK) {
- case NF_ACCEPT:
- case NF_DROP:
- case NF_QUEUE:
- break;
- default:
- return -EINVAL;
- }
- fallthrough;
+ case NF_ACCEPT:
+ case NF_DROP:
+ case NF_QUEUE:
+ break;
case NFT_CONTINUE:
case NFT_BREAK:
case NFT_RETURN:
@@ -10488,6 +10486,8 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,

data->verdict.chain = chain;
break;
+ default:
+ return -EINVAL;
}

desc->len = sizeof(data->verdict);
diff --git a/net/netfilter/nft_chain_filter.c b/net/netfilter/nft_chain_filter.c
index 680fe557686e..274b6f7e6bb5 100644
--- a/net/netfilter/nft_chain_filter.c
+++ b/net/netfilter/nft_chain_filter.c
@@ -357,9 +357,10 @@ static int nf_tables_netdev_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct nft_base_chain *basechain;
struct nftables_pernet *nft_net;
- struct nft_table *table;
struct nft_chain *chain, *nr;
+ struct nft_table *table;
struct nft_ctx ctx = {
.net = dev_net(dev),
};
@@ -371,7 +372,8 @@ static int nf_tables_netdev_event(struct notifier_block *this,
nft_net = nft_pernet(ctx.net);
mutex_lock(&nft_net->commit_mutex);
list_for_each_entry(table, &nft_net->tables, list) {
- if (table->family != NFPROTO_NETDEV)
+ if (table->family != NFPROTO_NETDEV &&
+ table->family != NFPROTO_INET)
continue;

ctx.family = table->family;
@@ -380,6 +382,11 @@ static int nf_tables_netdev_event(struct notifier_block *this,
if (!nft_is_base_chain(chain))
continue;

+ basechain = nft_base_chain(chain);
+ if (table->family == NFPROTO_INET &&
+ basechain->ops.hooknum != NF_INET_INGRESS)
+ continue;
+
ctx.chain = chain;
nft_netdev_event(event, dev, &ctx);
}
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index c16172427622..6952da7dfc02 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -349,6 +349,12 @@ static int nft_target_validate(const struct nft_ctx *ctx,
unsigned int hook_mask = 0;
int ret;

+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_BRIDGE &&
+ ctx->family != NFPROTO_ARP)
+ return -EOPNOTSUPP;
+
if (nft_is_base_chain(ctx->chain)) {
const struct nft_base_chain *basechain =
nft_base_chain(ctx->chain);
@@ -592,6 +598,12 @@ static int nft_match_validate(const struct nft_ctx *ctx,
unsigned int hook_mask = 0;
int ret;

+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_BRIDGE &&
+ ctx->family != NFPROTO_ARP)
+ return -EOPNOTSUPP;
+
if (nft_is_base_chain(ctx->chain)) {
const struct nft_base_chain *basechain =
nft_base_chain(ctx->chain);
diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index 8a43f6f9c90b..3d9f6dda5aeb 100644
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -380,6 +380,11 @@ static int nft_flow_offload_validate(const struct nft_ctx *ctx,
{
unsigned int hook_mask = (1 << NF_INET_FORWARD);

+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_INET)
+ return -EOPNOTSUPP;
+
return nft_chain_validate_hooks(ctx->chain, hook_mask);
}

diff --git a/net/netfilter/nft_limit.c b/net/netfilter/nft_limit.c
index 75c05ef885a9..36ded7d43262 100644
--- a/net/netfilter/nft_limit.c
+++ b/net/netfilter/nft_limit.c
@@ -58,17 +58,19 @@ static inline bool nft_limit_eval(struct nft_limit_priv *priv, u64 cost)
static int nft_limit_init(struct nft_limit_priv *priv,
const struct nlattr * const tb[], bool pkts)
{
+ u64 unit, tokens, rate_with_burst;
bool invert = false;
- u64 unit, tokens;

if (tb[NFTA_LIMIT_RATE] == NULL ||
tb[NFTA_LIMIT_UNIT] == NULL)
return -EINVAL;

priv->rate = be64_to_cpu(nla_get_be64(tb[NFTA_LIMIT_RATE]));
+ if (priv->rate == 0)
+ return -EINVAL;
+
unit = be64_to_cpu(nla_get_be64(tb[NFTA_LIMIT_UNIT]));
- priv->nsecs = unit * NSEC_PER_SEC;
- if (priv->rate == 0 || priv->nsecs < unit)
+ if (check_mul_overflow(unit, NSEC_PER_SEC, &priv->nsecs))
return -EOVERFLOW;

if (tb[NFTA_LIMIT_BURST])
@@ -77,18 +79,25 @@ static int nft_limit_init(struct nft_limit_priv *priv,
if (pkts && priv->burst == 0)
priv->burst = NFT_LIMIT_PKT_BURST_DEFAULT;

- if (priv->rate + priv->burst < priv->rate)
+ if (check_add_overflow(priv->rate, priv->burst, &rate_with_burst))
return -EOVERFLOW;

if (pkts) {
- tokens = div64_u64(priv->nsecs, priv->rate) * priv->burst;
+ u64 tmp = div64_u64(priv->nsecs, priv->rate);
+
+ if (check_mul_overflow(tmp, priv->burst, &tokens))
+ return -EOVERFLOW;
} else {
+ u64 tmp;
+
/* The token bucket size limits the number of tokens can be
* accumulated. tokens_max specifies the bucket size.
* tokens_max = unit * (rate + burst) / rate.
*/
- tokens = div64_u64(priv->nsecs * (priv->rate + priv->burst),
- priv->rate);
+ if (check_mul_overflow(priv->nsecs, rate_with_burst, &tmp))
+ return -EOVERFLOW;
+
+ tokens = div64_u64(tmp, priv->rate);
}

if (tb[NFTA_LIMIT_FLAGS]) {
diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c
index 353c090f8891..ba7bcce724ef 100644
--- a/net/netfilter/nft_nat.c
+++ b/net/netfilter/nft_nat.c
@@ -142,6 +142,11 @@ static int nft_nat_validate(const struct nft_ctx *ctx,
struct nft_nat *priv = nft_expr_priv(expr);
int err;

+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_INET)
+ return -EOPNOTSUPP;
+
err = nft_chain_validate_dependency(ctx->chain, NFT_CHAIN_T_NAT);
if (err < 0)
return err;
diff --git a/net/netfilter/nft_rt.c b/net/netfilter/nft_rt.c
index 71931ec91721..7d21e16499bf 100644
--- a/net/netfilter/nft_rt.c
+++ b/net/netfilter/nft_rt.c
@@ -166,6 +166,11 @@ static int nft_rt_validate(const struct nft_ctx *ctx, const struct nft_expr *exp
const struct nft_rt *priv = nft_expr_priv(expr);
unsigned int hooks;

+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_INET)
+ return -EOPNOTSUPP;
+
switch (priv->key) {
case NFT_RT_NEXTHOP4:
case NFT_RT_NEXTHOP6:
diff --git a/net/netfilter/nft_socket.c b/net/netfilter/nft_socket.c
index 777561b71fcb..f28324fd8d71 100644
--- a/net/netfilter/nft_socket.c
+++ b/net/netfilter/nft_socket.c
@@ -242,6 +242,11 @@ static int nft_socket_validate(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nft_data **data)
{
+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_INET)
+ return -EOPNOTSUPP;
+
return nft_chain_validate_hooks(ctx->chain,
(1 << NF_INET_PRE_ROUTING) |
(1 << NF_INET_LOCAL_IN) |
diff --git a/net/netfilter/nft_synproxy.c b/net/netfilter/nft_synproxy.c
index 6cf9a04fbfe2..a450f28a5ef6 100644
--- a/net/netfilter/nft_synproxy.c
+++ b/net/netfilter/nft_synproxy.c
@@ -186,7 +186,6 @@ static int nft_synproxy_do_init(const struct nft_ctx *ctx,
break;
#endif
case NFPROTO_INET:
- case NFPROTO_BRIDGE:
err = nf_synproxy_ipv4_init(snet, ctx->net);
if (err)
goto nf_ct_failure;
@@ -219,7 +218,6 @@ static void nft_synproxy_do_destroy(const struct nft_ctx *ctx)
break;
#endif
case NFPROTO_INET:
- case NFPROTO_BRIDGE:
nf_synproxy_ipv4_fini(snet, ctx->net);
nf_synproxy_ipv6_fini(snet, ctx->net);
break;
@@ -253,6 +251,11 @@ static int nft_synproxy_validate(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nft_data **data)
{
+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_INET)
+ return -EOPNOTSUPP;
+
return nft_chain_validate_hooks(ctx->chain, (1 << NF_INET_LOCAL_IN) |
(1 << NF_INET_FORWARD));
}
diff --git a/net/netfilter/nft_tproxy.c b/net/netfilter/nft_tproxy.c
index 62da25ad264b..adb50c39572e 100644
--- a/net/netfilter/nft_tproxy.c
+++ b/net/netfilter/nft_tproxy.c
@@ -316,6 +316,11 @@ static int nft_tproxy_validate(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nft_data **data)
{
+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_INET)
+ return -EOPNOTSUPP;
+
return nft_chain_validate_hooks(ctx->chain, 1 << NF_INET_PRE_ROUTING);
}

diff --git a/net/netfilter/nft_xfrm.c b/net/netfilter/nft_xfrm.c
index 1c5343c936a8..30259846c352 100644
--- a/net/netfilter/nft_xfrm.c
+++ b/net/netfilter/nft_xfrm.c
@@ -235,6 +235,11 @@ static int nft_xfrm_validate(const struct nft_ctx *ctx, const struct nft_expr *e
const struct nft_xfrm *priv = nft_expr_priv(expr);
unsigned int hooks;

+ if (ctx->family != NFPROTO_IPV4 &&
+ ctx->family != NFPROTO_IPV6 &&
+ ctx->family != NFPROTO_INET)
+ return -EOPNOTSUPP;
+
switch (priv->dir) {
case XFRM_POLICY_IN:
hooks = (1 << NF_INET_FORWARD) |
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index cb833302270a..6857a4965fe8 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -374,7 +374,7 @@ static void netlink_skb_destructor(struct sk_buff *skb)
if (is_vmalloc_addr(skb->head)) {
if (!skb->cloned ||
!atomic_dec_return(&(skb_shinfo(skb)->dataref)))
- vfree(skb->head);
+ vfree_atomic(skb->head);

skb->head = NULL;
}
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
index 3ff6995244e5..d107f7605db4 100644
--- a/net/rds/af_rds.c
+++ b/net/rds/af_rds.c
@@ -419,7 +419,7 @@ static int rds_recv_track_latency(struct rds_sock *rs, sockptr_t optval,

rs->rs_rx_traces = trace.rx_traces;
for (i = 0; i < rs->rs_rx_traces; i++) {
- if (trace.rx_trace_pos[i] > RDS_MSG_RX_DGRAM_TRACE_MAX) {
+ if (trace.rx_trace_pos[i] >= RDS_MSG_RX_DGRAM_TRACE_MAX) {
rs->rs_rx_traces = 0;
return -EFAULT;
}
diff --git a/net/smc/smc_diag.c b/net/smc/smc_diag.c
index 801044e7d194..7a907186a33a 100644
--- a/net/smc/smc_diag.c
+++ b/net/smc/smc_diag.c
@@ -163,7 +163,7 @@ static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb,
}
if (smc_conn_lgr_valid(&smc->conn) && smc->conn.lgr->is_smcd &&
(req->diag_ext & (1 << (SMC_DIAG_DMBINFO - 1))) &&
- !list_empty(&smc->conn.lgr->list)) {
+ !list_empty(&smc->conn.lgr->list) && smc->conn.rmb_desc) {
struct smc_connection *conn = &smc->conn;
struct smcd_diag_dmbinfo dinfo;

diff --git a/scripts/get_abi.pl b/scripts/get_abi.pl
index 0ffd5531242a..408bfd0216da 100755
--- a/scripts/get_abi.pl
+++ b/scripts/get_abi.pl
@@ -98,7 +98,7 @@ sub parse_abi {
$name =~ s,.*/,,;

my $fn = $file;
- $fn =~ s,Documentation/ABI/,,;
+ $fn =~ s,.*Documentation/ABI/,,;

my $nametag = "File $fn";
$data{$nametag}->{what} = "File $name";
diff --git a/security/security.c b/security/security.c
index 5fa286ae9908..fc15b963e102 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1569,6 +1569,24 @@ int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
}
EXPORT_SYMBOL_GPL(security_file_ioctl);

+/**
+ * security_file_ioctl_compat() - Check if an ioctl is allowed in compat mode
+ * @file: associated file
+ * @cmd: ioctl cmd
+ * @arg: ioctl arguments
+ *
+ * Compat version of security_file_ioctl() that correctly handles 32-bit
+ * processes running on 64-bit kernels.
+ *
+ * Return: Returns 0 if permission is granted.
+ */
+int security_file_ioctl_compat(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ return call_int_hook(file_ioctl_compat, 0, file, cmd, arg);
+}
+EXPORT_SYMBOL_GPL(security_file_ioctl_compat);
+
static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
{
/*
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index d45e9fa74e62..78f3da39b031 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3718,6 +3718,33 @@ static int selinux_file_ioctl(struct file *file, unsigned int cmd,
return error;
}

+static int selinux_file_ioctl_compat(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ /*
+ * If we are in a 64-bit kernel running 32-bit userspace, we need to
+ * make sure we don't compare 32-bit flags to 64-bit flags.
+ */
+ switch (cmd) {
+ case FS_IOC32_GETFLAGS:
+ cmd = FS_IOC_GETFLAGS;
+ break;
+ case FS_IOC32_SETFLAGS:
+ cmd = FS_IOC_SETFLAGS;
+ break;
+ case FS_IOC32_GETVERSION:
+ cmd = FS_IOC_GETVERSION;
+ break;
+ case FS_IOC32_SETVERSION:
+ cmd = FS_IOC_SETVERSION;
+ break;
+ default:
+ break;
+ }
+
+ return selinux_file_ioctl(file, cmd, arg);
+}
+
static int default_noexec __ro_after_init;

static int file_map_prot_check(struct file *file, unsigned long prot, int shared)
@@ -7135,6 +7162,7 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(file_permission, selinux_file_permission),
LSM_HOOK_INIT(file_alloc_security, selinux_file_alloc_security),
LSM_HOOK_INIT(file_ioctl, selinux_file_ioctl),
+ LSM_HOOK_INIT(file_ioctl_compat, selinux_file_ioctl_compat),
LSM_HOOK_INIT(mmap_file, selinux_mmap_file),
LSM_HOOK_INIT(mmap_addr, selinux_mmap_addr),
LSM_HOOK_INIT(file_mprotect, selinux_file_mprotect),
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index cd6a03e945eb..fbadc61feedd 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -4905,6 +4905,7 @@ static struct security_hook_list smack_hooks[] __lsm_ro_after_init = {

LSM_HOOK_INIT(file_alloc_security, smack_file_alloc_security),
LSM_HOOK_INIT(file_ioctl, smack_file_ioctl),
+ LSM_HOOK_INIT(file_ioctl_compat, smack_file_ioctl),
LSM_HOOK_INIT(file_lock, smack_file_lock),
LSM_HOOK_INIT(file_fcntl, smack_file_fcntl),
LSM_HOOK_INIT(mmap_file, smack_mmap_file),
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 71e82d855ebf..fb599401bc7d 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -555,6 +555,7 @@ static struct security_hook_list tomoyo_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(path_rename, tomoyo_path_rename),
LSM_HOOK_INIT(inode_getattr, tomoyo_inode_getattr),
LSM_HOOK_INIT(file_ioctl, tomoyo_file_ioctl),
+ LSM_HOOK_INIT(file_ioctl_compat, tomoyo_file_ioctl),
LSM_HOOK_INIT(path_chmod, tomoyo_path_chmod),
LSM_HOOK_INIT(path_chown, tomoyo_path_chown),
LSM_HOOK_INIT(path_chroot, tomoyo_path_chroot),
diff --git a/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh b/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
index 1b08e042cf94..185b02d2d4cd 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
@@ -269,6 +269,7 @@ for port in 0 1; do
echo 1 > $NSIM_DEV_SYS/new_port
fi
NSIM_NETDEV=`get_netdev_name old_netdevs`
+ ifconfig $NSIM_NETDEV up

msg="new NIC device created"
exp0=( 0 0 0 0 )
@@ -430,6 +431,7 @@ for port in 0 1; do
fi

echo $port > $NSIM_DEV_SYS/new_port
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
ifconfig $NSIM_NETDEV up

overflow_table0 "overflow NIC table"
@@ -487,6 +489,7 @@ for port in 0 1; do
fi

echo $port > $NSIM_DEV_SYS/new_port
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
ifconfig $NSIM_NETDEV up

overflow_table0 "overflow NIC table"
@@ -543,6 +546,7 @@ for port in 0 1; do
fi

echo $port > $NSIM_DEV_SYS/new_port
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
ifconfig $NSIM_NETDEV up

overflow_table0 "destroy NIC"
@@ -572,6 +576,7 @@ for port in 0 1; do
fi

echo $port > $NSIM_DEV_SYS/new_port
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
ifconfig $NSIM_NETDEV up

msg="create VxLANs v6"
@@ -632,6 +637,7 @@ for port in 0 1; do
fi

echo $port > $NSIM_DEV_SYS/new_port
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
ifconfig $NSIM_NETDEV up

echo 110 > $NSIM_DEV_DFS/ports/$port/udp_ports_inject_error
@@ -687,6 +693,7 @@ for port in 0 1; do
fi

echo $port > $NSIM_DEV_SYS/new_port
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
ifconfig $NSIM_NETDEV up

msg="create VxLANs v6"
@@ -746,6 +753,7 @@ for port in 0 1; do
fi

echo $port > $NSIM_DEV_SYS/new_port
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
ifconfig $NSIM_NETDEV up

msg="create VxLANs v6"
@@ -876,6 +884,7 @@ msg="re-add a port"

echo 2 > $NSIM_DEV_SYS/del_port
echo 2 > $NSIM_DEV_SYS/new_port
+NSIM_NETDEV=`get_netdev_name old_netdevs`
check_tables

msg="replace VxLAN in overflow table"