[PATCH AUTOSEL for 4.4 01/36] usb: build drivers/usb/common/ when USB_SUPPORT is set

[PATCH AUTOSEL for 4.4 01/36] usb: build drivers/usb/common/ when USB_SUPPORT is set

[Sasha Levin]

From: Randy Dunlap <rdunlap@infradead.org>

[ Upstream commit c9d24f78268be444e803fb2bb138a2f598de9c23 ]

PHY drivers can use ULPI interfaces when CONFIG_USB (which is host side
support) is not enabled, so also build drivers/usb/ when CONFIG_USB_SUPPORT
is enabled so that drivers/usb/common/ is built.

ERROR: "ulpi_unregister_driver" [drivers/phy/ti/phy-tusb1210.ko] undefined!
ERROR: "__ulpi_register_driver" [drivers/phy/ti/phy-tusb1210.ko] undefined!
ERROR: "ulpi_read" [drivers/phy/ti/phy-tusb1210.ko] undefined!
ERROR: "ulpi_write" [drivers/phy/ti/phy-tusb1210.ko] undefined!
ERROR: "ulpi_unregister_driver" [drivers/phy/qualcomm/phy-qcom-usb-hs.ko] undefined!
ERROR: "__ulpi_register_driver" [drivers/phy/qualcomm/phy-qcom-usb-hs.ko] undefined!
ERROR: "ulpi_write" [drivers/phy/qualcomm/phy-qcom-usb-hs.ko] undefined!

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/Makefile b/drivers/Makefile
index 098997f2cc3a..f42a74ebc1be 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -96,6 +96,7 @@ obj-$(CONFIG_TC)		+= tc/
 obj-$(CONFIG_UWB)		+= uwb/
 obj-$(CONFIG_USB_PHY)		+= usb/
 obj-$(CONFIG_USB)		+= usb/
+obj-$(CONFIG_USB_SUPPORT)	+= usb/
 obj-$(CONFIG_PCI)		+= usb/
 obj-$(CONFIG_USB_GADGET)	+= usb/
 obj-$(CONFIG_OF)		+= usb/
-- 
2.11.0

[PATCH AUTOSEL for 4.4 02/36] ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context

[Sasha Levin]

From: Tony Lindgren <tony@atomide.com>

[ Upstream commit d09220a887f70368afa79e850c95e74890c0a32d ]

With the CMA changes from Joonsoo Kim <iamjoonsoo.kim@lge.com>, it
was noticed that n900 stopped booting. After investigating it turned
out that n900 save_secure_ram_context does some whacky virtual to
physical address translation for the SRAM data address.

As we now only have minimal parts of omap3 idle code copied to SRAM,
running save_secure_ram_context() in SRAM is not needed. It only gets
called on PM init. And it seems there's no need to ever call this from
SRAM idle code.

So let's just keep save_secure_ram_context() in DDR, and pass it the
physical address of the parameters. We can do everything else in
omap-secure.c like we already do for other secure code.

And since we don't have any documentation, I still have no clue what
the values for 0, 1 and 1 for the parameters might be. If somebody has
figured it out, please do send a patch to add some comments.

Debugged-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/arm/mach-omap2/omap-secure.c | 19 +++++++++++++++++++
 arch/arm/mach-omap2/omap-secure.h |  4 ++++
 arch/arm/mach-omap2/pm.h          |  4 ----
 arch/arm/mach-omap2/pm34xx.c      | 13 ++++---------
 arch/arm/mach-omap2/sleep34xx.S   | 26 ++++----------------------
 5 files changed, 31 insertions(+), 35 deletions(-)

diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c
index 5ac122e88f67..9ff92050053c 100644
--- a/arch/arm/mach-omap2/omap-secure.c
+++ b/arch/arm/mach-omap2/omap-secure.c
@@ -73,6 +73,25 @@ phys_addr_t omap_secure_ram_mempool_base(void)
 	return omap_secure_memblock_base;
 }
 
+u32 omap3_save_secure_ram(void __iomem *addr, int size)
+{
+	u32 ret;
+	u32 param[5];
+
+	if (size != OMAP3_SAVE_SECURE_RAM_SZ)
+		return OMAP3_SAVE_SECURE_RAM_SZ;
+
+	param[0] = 4;		/* Number of arguments */
+	param[1] = __pa(addr);	/* Physical address for saving */
+	param[2] = 0;
+	param[3] = 1;
+	param[4] = 1;
+
+	ret = save_secure_ram_context(__pa(param));
+
+	return ret;
+}
+
 /**
  * rx51_secure_dispatcher: Routine to dispatch secure PPA API calls
  * @idx: The PPA API index
diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index af2851fbcdf0..ab6ce2597a88 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -31,6 +31,8 @@
 /* Maximum Secure memory storage size */
 #define OMAP_SECURE_RAM_STORAGE	(88 * SZ_1K)
 
+#define OMAP3_SAVE_SECURE_RAM_SZ	0x803F
+
 /* Secure low power HAL API index */
 #define OMAP4_HAL_SAVESECURERAM_INDEX	0x1a
 #define OMAP4_HAL_SAVEHW_INDEX		0x1b
@@ -64,6 +66,8 @@ extern u32 omap_smc2(u32 id, u32 falg, u32 pargs);
 extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs);
 extern phys_addr_t omap_secure_ram_mempool_base(void);
 extern int omap_secure_ram_reserve_memblock(void);
+extern u32 save_secure_ram_context(u32 args_pa);
+extern u32 omap3_save_secure_ram(void __iomem *save_regs, int size);
 
 extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
 				  u32 arg1, u32 arg2, u32 arg3, u32 arg4);
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index b668719b9b25..8e30772cfe32 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -81,10 +81,6 @@ extern unsigned int omap3_do_wfi_sz;
 /* ... and its pointer from SRAM after copy */
 extern void (*omap3_do_wfi_sram)(void);
 
-/* save_secure_ram_context function pointer and size, for copy to SRAM */
-extern int save_secure_ram_context(u32 *addr);
-extern unsigned int save_secure_ram_context_sz;
-
 extern void omap3_save_scratchpad_contents(void);
 
 #define PM_RTA_ERRATUM_i608		(1 << 0)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 2dbd3785ee6f..181da202f981 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -48,6 +48,7 @@
 #include "prm3xxx.h"
 #include "pm.h"
 #include "sdrc.h"
+#include "omap-secure.h"
 #include "sram.h"
 #include "control.h"
 #include "vc.h"
@@ -66,7 +67,6 @@ struct power_state {
 
 static LIST_HEAD(pwrst_list);
 
-static int (*_omap_save_secure_sram)(u32 *addr);
 void (*omap3_do_wfi_sram)(void);
 
 static struct powerdomain *mpu_pwrdm, *neon_pwrdm;
@@ -121,8 +121,8 @@ static void omap3_save_secure_ram_context(void)
 		 * will hang the system.
 		 */
 		pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
-		ret = _omap_save_secure_sram((u32 *)(unsigned long)
-				__pa(omap3_secure_ram_storage));
+		ret = omap3_save_secure_ram(omap3_secure_ram_storage,
+					    OMAP3_SAVE_SECURE_RAM_SZ);
 		pwrdm_set_next_pwrst(mpu_pwrdm, mpu_next_state);
 		/* Following is for error tracking, it should not happen */
 		if (ret) {
@@ -431,15 +431,10 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
  *
  * The minimum set of functions is pushed to SRAM for execution:
  * - omap3_do_wfi for erratum i581 WA,
- * - save_secure_ram_context for security extensions.
  */
 void omap_push_sram_idle(void)
 {
 	omap3_do_wfi_sram = omap_sram_push(omap3_do_wfi, omap3_do_wfi_sz);
-
-	if (omap_type() != OMAP2_DEVICE_TYPE_GP)
-		_omap_save_secure_sram = omap_sram_push(save_secure_ram_context,
-				save_secure_ram_context_sz);
 }
 
 static void __init pm_errata_configure(void)
@@ -551,7 +546,7 @@ int __init omap3_pm_init(void)
 	clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
 	if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
 		omap3_secure_ram_storage =
-			kmalloc(0x803F, GFP_KERNEL);
+			kmalloc(OMAP3_SAVE_SECURE_RAM_SZ, GFP_KERNEL);
 		if (!omap3_secure_ram_storage)
 			pr_err("Memory allocation failed when allocating for secure sram context\n");
 
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index 1b9f0520dea9..3e0d802c59da 100644
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -93,20 +93,13 @@ ENTRY(enable_omap3630_toggle_l2_on_restore)
 ENDPROC(enable_omap3630_toggle_l2_on_restore)
 
 /*
- * Function to call rom code to save secure ram context. This gets
- * relocated to SRAM, so it can be all in .data section. Otherwise
- * we need to initialize api_params separately.
+ * Function to call rom code to save secure ram context.
+ *
+ * r0 = physical address of the parameters
  */
-	.data
-	.align	3
 ENTRY(save_secure_ram_context)
 	stmfd	sp!, {r4 - r11, lr}	@ save registers on stack
-	adr	r3, api_params		@ r3 points to parameters
-	str	r0, [r3,#0x4]		@ r0 has sdram address
-	ldr	r12, high_mask
-	and	r3, r3, r12
-	ldr	r12, sram_phy_addr_mask
-	orr	r3, r3, r12
+	mov	r3, r0			@ physical address of parameters
 	mov	r0, #25			@ set service ID for PPA
 	mov	r12, r0			@ copy secure service ID in r12
 	mov	r1, #0			@ set task id for ROM code in r1
@@ -120,18 +113,7 @@ ENTRY(save_secure_ram_context)
 	nop
 	nop
 	ldmfd	sp!, {r4 - r11, pc}
-	.align
-sram_phy_addr_mask:
-	.word	SRAM_BASE_P
-high_mask:
-	.word	0xffff
-api_params:
-	.word	0x4, 0x0, 0x0, 0x1, 0x1
 ENDPROC(save_secure_ram_context)
-ENTRY(save_secure_ram_context_sz)
-	.word	. - save_secure_ram_context
-
-	.text
 
 /*
  * ======================
-- 
2.11.0

[PATCH AUTOSEL for 4.4 03/36] ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function

[Sasha Levin]

From: Keerthy <j-keerthy@ti.com>

[ Upstream commit b6d6af7226465b6d11eac09d0be2ab78a4a9eb62 ]

Referring TRM Am335X series:
http://www.ti.com/lit/ug/spruh73p/spruh73p.pdf

The LastPowerStateEntered bitfield is present only for PM_CEFUSE
domain. This is not present in any of the other power domains. Hence
remove the generic am33xx_pwrdm_read_prev_pwrst hook which wrongly
reads the reserved bit fields for all the other power domains.

Reading the reserved bits leads to wrongly interpreting the low
power transitions for various power domains that do not have the
LastPowerStateEntered field. The pm debug counters values are wrong
currently as we are incrementing them based on the reserved bits.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/arm/mach-omap2/prm33xx.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c
index dcb5001d77da..973bcd754e1c 100644
--- a/arch/arm/mach-omap2/prm33xx.c
+++ b/arch/arm/mach-omap2/prm33xx.c
@@ -176,17 +176,6 @@ static int am33xx_pwrdm_read_pwrst(struct powerdomain *pwrdm)
 	return v;
 }
 
-static int am33xx_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
-{
-	u32 v;
-
-	v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs);
-	v &= AM33XX_LASTPOWERSTATEENTERED_MASK;
-	v >>= AM33XX_LASTPOWERSTATEENTERED_SHIFT;
-
-	return v;
-}
-
 static int am33xx_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm)
 {
 	am33xx_prm_rmw_reg_bits(AM33XX_LOWPOWERSTATECHANGE_MASK,
@@ -357,7 +346,6 @@ struct pwrdm_ops am33xx_pwrdm_operations = {
 	.pwrdm_set_next_pwrst		= am33xx_pwrdm_set_next_pwrst,
 	.pwrdm_read_next_pwrst		= am33xx_pwrdm_read_next_pwrst,
 	.pwrdm_read_pwrst		= am33xx_pwrdm_read_pwrst,
-	.pwrdm_read_prev_pwrst		= am33xx_pwrdm_read_prev_pwrst,
 	.pwrdm_set_logic_retst		= am33xx_pwrdm_set_logic_retst,
 	.pwrdm_read_logic_pwrst		= am33xx_pwrdm_read_logic_pwrst,
 	.pwrdm_read_logic_retst		= am33xx_pwrdm_read_logic_retst,
-- 
2.11.0

[PATCH AUTOSEL for 4.4 04/36] ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen

[Sasha Levin]

From: Tony Lindgren <tony@atomide.com>

[ Upstream commit cf87634c8b24e24bf379b8c6807c8b0fb5f23567 ]

There's been a reproducable USB OHCI/EHCI cpuidle related hang on omap4
for a while that happens after about 20 - 40 minutes on an idle system
with some data feeding device being connected, like a USB GPS device or
a cellular modem.

This issue happens in cpuidle states C2 and C3 and does not happen if
cpuidle is limited to C1 state only. The symptoms are that the whole
system hangs and never wakes up from idle, and if a watchdog is
configured the system reboots after a while.

Turns out that OHCI/EHCI devices on omap4 are trying to use the GIC
interrupt controller directly as a parent instead of the WUGEN. We
need to pass the interrupts through WUGEN to GIC to provide the wakeup
events for the processor.

Let's fix the issue by removing the gic interrupt-parent and use the
default interrupt-parent wakeupgen instead. Note that omap5.dtsi had
this already fixes earlier by commit 7136d457f365 ("ARM: omap: convert
wakeupgen to stacked domains") but we somehow missed omap4 at that
point.

Fixes: 7136d457f365 ("ARM: omap: convert wakeupgen to stacked domains")
Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/arm/boot/dts/omap4.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 5a206c100ce2..8a5628c4b135 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -844,14 +844,12 @@
 			usbhsohci: ohci@4a064800 {
 				compatible = "ti,ohci-omap3";
 				reg = <0x4a064800 0x400>;
-				interrupt-parent = <&gic>;
 				interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
 			};
 
 			usbhsehci: ehci@4a064c00 {
 				compatible = "ti,ehci-omap";
 				reg = <0x4a064c00 0x400>;
-				interrupt-parent = <&gic>;
 				interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
 			};
 		};
-- 
2.11.0

[PATCH AUTOSEL for 4.4 05/36] ARM: dts: am4372: Correct the interrupts_properties of McASP

[Sasha Levin]

From: Peter Ujfalusi <peter.ujfalusi@ti.com>

[ Upstream commit 627395a6f8091c0aa18f49dca7df59ba3ec147ef ]

Fixes the following warnings:

arch/arm/boot/dts/am437x-cm-t43.dtb: Warning (interrupts_property):
interrupts size is (8), expected multiple of 12 in
/ocp@44000000/mcasp@48038000

arch/arm/boot/dts/am437x-cm-t43.dtb: Warning (interrupts_property):
interrupts size is (8), expected multiple of 12 in
/ocp@44000000/mcasp@4803C000

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/arm/boot/dts/am4372.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index de8791a4d131..3ef1d5a26389 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -807,7 +807,8 @@
 			reg = <0x48038000 0x2000>,
 			      <0x46000000 0x400000>;
 			reg-names = "mpu", "dat";
-			interrupts = <80>, <81>;
+			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "tx", "rx";
 			status = "disabled";
 			dmas = <&edma 8>,
@@ -821,7 +822,8 @@
 			reg = <0x4803C000 0x2000>,
 			      <0x46400000 0x400000>;
 			reg-names = "mpu", "dat";
-			interrupts = <82>, <83>;
+			interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "tx", "rx";
 			status = "disabled";
 			dmas = <&edma 10>,
-- 
2.11.0

[PATCH AUTOSEL for 4.4 06/36] perf top: Fix window dimensions change handling

[Sasha Levin]

From: Jiri Olsa <jolsa@kernel.org>

[ Upstream commit 89d0aeab4252adc2a7ea693637dd21c588bfa2d1 ]

The stdio perf top crashes when we change the terminal
window size. The reason is that we assumed we get the
perf_top pointer as a signal handler argument which is
not the case.

Changing the SIGWINCH handler logic to change global
resize variable, which is checked in the main thread
loop.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-ysuzwz77oev1ftgvdscn9bpu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 tools/perf/builtin-top.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 4a8a02c302d2..47719bde34c6 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -70,6 +70,7 @@
 #include <linux/types.h>
 
 static volatile int done;
+static volatile int resize;
 
 #define HEADER_LINE_NR  5
 
@@ -79,10 +80,13 @@ static void perf_top__update_print_entries(struct perf_top *top)
 }
 
 static void perf_top__sig_winch(int sig __maybe_unused,
-				siginfo_t *info __maybe_unused, void *arg)
+				siginfo_t *info __maybe_unused, void *arg __maybe_unused)
 {
-	struct perf_top *top = arg;
+	resize = 1;
+}
 
+static void perf_top__resize(struct perf_top *top)
+{
 	get_term_dimensions(&top->winsize);
 	perf_top__update_print_entries(top);
 }
@@ -466,7 +470,7 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c)
 					.sa_sigaction = perf_top__sig_winch,
 					.sa_flags     = SA_SIGINFO,
 				};
-				perf_top__sig_winch(SIGWINCH, NULL, top);
+				perf_top__resize(top);
 				sigaction(SIGWINCH, &act, NULL);
 			} else {
 				signal(SIGWINCH, SIG_DFL);
@@ -1023,6 +1027,11 @@ static int __cmd_top(struct perf_top *top)
 
 		if (hits == top->samples)
 			ret = perf_evlist__poll(top->evlist, 100);
+
+		if (resize) {
+			perf_top__resize(top);
+			resize = 0;
+		}
 	}
 
 	ret = 0;
-- 
2.11.0

[PATCH AUTOSEL for 4.4 07/36] perf bench numa: Fixup discontiguous/sparse numa nodes

[Sasha Levin]

From: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>

[ Upstream commit 321a7c35c90cc834851ceda18a8ee18f1d032b92 ]

Certain systems are designed to have sparse/discontiguous nodes.  On
such systems, 'perf bench numa' hangs, shows wrong number of nodes and
shows values for non-existent nodes. Handle this by only taking nodes
that are exposed by kernel to userspace.

Signed-off-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1edbcd353c009e109e93d78f2f46381930c340fe.1511368645.git.sathnaga@linux.vnet.ibm.com
Signed-off-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 tools/perf/bench/numa.c | 56 ++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 51 insertions(+), 5 deletions(-)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index b4eb5b679081..73d192f57dc3 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -208,6 +208,47 @@ static const char * const numa_usage[] = {
 	NULL
 };
 
+/*
+ * To get number of numa nodes present.
+ */
+static int nr_numa_nodes(void)
+{
+	int i, nr_nodes = 0;
+
+	for (i = 0; i < g->p.nr_nodes; i++) {
+		if (numa_bitmask_isbitset(numa_nodes_ptr, i))
+			nr_nodes++;
+	}
+
+	return nr_nodes;
+}
+
+/*
+ * To check if given numa node is present.
+ */
+static int is_node_present(int node)
+{
+	return numa_bitmask_isbitset(numa_nodes_ptr, node);
+}
+
+/*
+ * To check given numa node has cpus.
+ */
+static bool node_has_cpus(int node)
+{
+	struct bitmask *cpu = numa_allocate_cpumask();
+	unsigned int i;
+
+	if (cpu && !numa_node_to_cpus(node, cpu)) {
+		for (i = 0; i < cpu->size; i++) {
+			if (numa_bitmask_isbitset(cpu, i))
+				return true;
+		}
+	}
+
+	return false; /* lets fall back to nocpus safely */
+}
+
 static cpu_set_t bind_to_cpu(int target_cpu)
 {
 	cpu_set_t orig_mask, mask;
@@ -236,12 +277,12 @@ static cpu_set_t bind_to_cpu(int target_cpu)
 
 static cpu_set_t bind_to_node(int target_node)
 {
-	int cpus_per_node = g->p.nr_cpus/g->p.nr_nodes;
+	int cpus_per_node = g->p.nr_cpus / nr_numa_nodes();
 	cpu_set_t orig_mask, mask;
 	int cpu;
 	int ret;
 
-	BUG_ON(cpus_per_node*g->p.nr_nodes != g->p.nr_cpus);
+	BUG_ON(cpus_per_node * nr_numa_nodes() != g->p.nr_cpus);
 	BUG_ON(!cpus_per_node);
 
 	ret = sched_getaffinity(0, sizeof(orig_mask), &orig_mask);
@@ -641,7 +682,7 @@ static int parse_setup_node_list(void)
 			int i;
 
 			for (i = 0; i < mul; i++) {
-				if (t >= g->p.nr_tasks) {
+				if (t >= g->p.nr_tasks || !node_has_cpus(bind_node)) {
 					printf("\n# NOTE: ignoring bind NODEs starting at NODE#%d\n", bind_node);
 					goto out;
 				}
@@ -956,6 +997,8 @@ static void calc_convergence(double runtime_ns_max, double *convergence)
 	sum = 0;
 
 	for (node = 0; node < g->p.nr_nodes; node++) {
+		if (!is_node_present(node))
+			continue;
 		nr = nodes[node];
 		nr_min = min(nr, nr_min);
 		nr_max = max(nr, nr_max);
@@ -976,8 +1019,11 @@ static void calc_convergence(double runtime_ns_max, double *convergence)
 	process_groups = 0;
 
 	for (node = 0; node < g->p.nr_nodes; node++) {
-		int processes = count_node_processes(node);
+		int processes;
 
+		if (!is_node_present(node))
+			continue;
+		processes = count_node_processes(node);
 		nr = nodes[node];
 		tprintf(" %2d/%-2d", nr, processes);
 
@@ -1283,7 +1329,7 @@ static void print_summary(void)
 
 	printf("\n ###\n");
 	printf(" # %d %s will execute (on %d nodes, %d CPUs):\n",
-		g->p.nr_tasks, g->p.nr_tasks == 1 ? "task" : "tasks", g->p.nr_nodes, g->p.nr_cpus);
+		g->p.nr_tasks, g->p.nr_tasks == 1 ? "task" : "tasks", nr_numa_nodes(), g->p.nr_cpus);
 	printf(" #      %5dx %5ldMB global  shared mem operations\n",
 			g->p.nr_loops, g->p.bytes_global/1024/1024);
 	printf(" #      %5dx %5ldMB process shared mem operations\n",
-- 
2.11.0

[PATCH AUTOSEL for 4.4 08/36] media: s5k6aa: describe some function parameters

[Sasha Levin]

From: Mauro Carvalho Chehab <mchehab@s-opensource.com>

[ Upstream commit 070250a1715cee2297de0d9e7e2cea58be999d37 ]

as warned:
  drivers/media/i2c/s5k6aa.c:429: warning: No description found for parameter 's5k6aa'
  drivers/media/i2c/s5k6aa.c:679: warning: No description found for parameter 's5k6aa'
  drivers/media/i2c/s5k6aa.c:733: warning: No description found for parameter 's5k6aa'
  drivers/media/i2c/s5k6aa.c:733: warning: No description found for parameter 'preset'
  drivers/media/i2c/s5k6aa.c:787: warning: No description found for parameter 'sd'

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/media/i2c/s5k6aa.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/media/i2c/s5k6aa.c b/drivers/media/i2c/s5k6aa.c
index d0ad6a25bdab..5ac2babe123b 100644
--- a/drivers/media/i2c/s5k6aa.c
+++ b/drivers/media/i2c/s5k6aa.c
@@ -421,6 +421,7 @@ static int s5k6aa_set_ahb_address(struct i2c_client *client)
 
 /**
  * s5k6aa_configure_pixel_clock - apply ISP main clock/PLL configuration
+ * @s5k6aa: pointer to &struct s5k6aa describing the device
  *
  * Configure the internal ISP PLL for the required output frequency.
  * Locking: called with s5k6aa.lock mutex held.
@@ -669,6 +670,7 @@ static int s5k6aa_set_input_params(struct s5k6aa *s5k6aa)
 
 /**
  * s5k6aa_configure_video_bus - configure the video output interface
+ * @s5k6aa: pointer to &struct s5k6aa describing the device
  * @bus_type: video bus type: parallel or MIPI-CSI
  * @nlanes: number of MIPI lanes to be used (MIPI-CSI only)
  *
@@ -724,6 +726,8 @@ static int s5k6aa_new_config_sync(struct i2c_client *client, int timeout,
 
 /**
  * s5k6aa_set_prev_config - write user preview register set
+ * @s5k6aa: pointer to &struct s5k6aa describing the device
+ * @preset: s5kaa preset to be applied
  *
  * Configure output resolution and color fromat, pixel clock
  * frequency range, device frame rate type and frame period range.
@@ -777,6 +781,7 @@ static int s5k6aa_set_prev_config(struct s5k6aa *s5k6aa,
 
 /**
  * s5k6aa_initialize_isp - basic ISP MCU initialization
+ * @sd: pointer to V4L2 sub-device descriptor
  *
  * Configure AHB addresses for registers read/write; configure PLLs for
  * required output pixel clock. The ISP power supply needs to be already
-- 
2.11.0

[PATCH AUTOSEL for 4.4 09/36] pinctrl: sunxi: Fix A80 interrupt pin bank

[Sasha Levin]

From: Andre Przywara <andre.przywara@arm.com>

[ Upstream commit 6ad4cc8d1ac483e0fd33f605fb2788b0ecf51ed4 ]

On the A80 the pins on port B can trigger interrupts, and those are
assigned to the second interrupt bank.
Having two pins assigned to the same interrupt bank/pin combination does
not look healthy (instead more like a copy&paste bug from pins PA14-PA16),
so fix the interrupt bank for pins PB14-PB16, which is actually 1.

I don't have any A80 board, so could not test this.

Fixes: d5e9fb31baa2 ("pinctrl: sunxi: Add A80 pinctrl muxing options")
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/pinctrl/sunxi/pinctrl-sun9i-a80.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/sunxi/pinctrl-sun9i-a80.c b/drivers/pinctrl/sunxi/pinctrl-sun9i-a80.c
index 1b580ba76453..907d7db3fcee 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sun9i-a80.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun9i-a80.c
@@ -145,19 +145,19 @@ static const struct sunxi_desc_pin sun9i_a80_pins[] = {
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
 		  SUNXI_FUNCTION(0x3, "mcsi"),		/* MCLK */
-		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 14)),	/* PB_EINT14 */
+		  SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 14)),	/* PB_EINT14 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 15),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
 		  SUNXI_FUNCTION(0x3, "mcsi"),		/* SCK */
 		  SUNXI_FUNCTION(0x4, "i2c4"),		/* SCK */
-		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 15)),	/* PB_EINT15 */
+		  SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 15)),	/* PB_EINT15 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 16),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
 		  SUNXI_FUNCTION(0x3, "mcsi"),		/* SDA */
 		  SUNXI_FUNCTION(0x4, "i2c4"),		/* SDA */
-		  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 16)),	/* PB_EINT16 */
+		  SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 16)),	/* PB_EINT16 */
 
 	/* Hole */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 0),
-- 
2.11.0

[PATCH AUTOSEL for 4.4 10/36] RDMA/cma: Make sure that PSN is not over max allowed

[Sasha Levin]

From: Moni Shoua <monis@mellanox.com>

[ Upstream commit 23a9cd2ad90543e9da3786878d2b2729c095439d ]

This patch limits the initial value for PSN to 24 bits as
spec requires.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/infiniband/core/cma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index e354358db77b..b6c9a370a38b 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -626,6 +626,7 @@ struct rdma_cm_id *rdma_create_id(struct net *net,
 	INIT_LIST_HEAD(&id_priv->mc_list);
 	get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);
 	id_priv->id.route.addr.dev_addr.net = get_net(net);
+	id_priv->seq_num &= 0x00ffffff;
 
 	return &id_priv->id;
 }
-- 
2.11.0

[PATCH AUTOSEL for 4.4 11/36] scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none

[Sasha Levin]

From: Will Deacon <will.deacon@arm.com>

[ Upstream commit e814bccbafece52a24e152d2395b5d49eef55841 ]

My bisect scripts starting running into build failures when trying to
compile 4.15-rc1 with the builds failing with things like:

drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:2078: error: Cannot parse struct or union!

The line in question is actually just a #define, but after some digging
it turns out that my scripts pass W=1 and since commit 3a025e1d1c2ea
("Add optional check for bad kernel-doc comments") that results in
kernel-doc running on each source file. The file in question has a
badly formatted comment immediately before the #define:

/**
 * struct brcmf_skbuff_cb reserves first two bytes in sk_buff::cb for
 * bus layer usage.
 */

which causes the regex in dump_struct to fail (lack of braces following
struct declaration) and kernel-doc returns 1, which causes the build
to fail.

Fix the issue by always returning 0 from kernel-doc when invoked with
-none. It successfully generates no documentation, and prints out any
issues.

Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 scripts/kernel-doc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 638a38e1b419..bba8ad9c4f2c 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -2742,4 +2742,4 @@ if ($verbose && $warnings) {
   print STDERR "$warnings warnings\n";
 }
 
-exit($errors);
+exit($output_mode eq "none" ? 0 : $errors);
-- 
2.11.0

[PATCH AUTOSEL for 4.4 13/36] m68k: add missing SOFTIRQENTRY_TEXT linker section

[Sasha Levin]

From: Greg Ungerer <gerg@linux-m68k.org>

[ Upstream commit 969de0988b77e5a57aac2f7270191a3c50540c52 ]

Commit be7635e7287e ("arch, ftrace: for KASAN put hard/soft IRQ entries
into separate sections") added a new linker section, SOFTIRQENTRY_TEXT,
to the linker scripts for most architectures. It didn't add it to any of
the linker scripts for the m68k architecture. This was not really a problem
because it is only defined if either of CONFIG_FUNCTION_GRAPH_TRACER or
CONFIG_KASAN are enabled - which can never be true for m68k.

However commit 229a71860547 ("irq: Make the irqentry text section
unconditional") means that SOFTIRQENTRY_TEXT is now always defined. So on
m68k we now end up with a separate ELF section for .softirqentry.text
instead of it being part of the .text section. On some m68k targets in some
configurations this can also cause a fatal link error:

  LD      vmlinux
/usr/local/bin/../m68k-uclinux/bin/ld.real: section .softirqentry.text loaded at [0000000010de10c0,0000000010de12dd] overlaps section .rodata loaded at [0000000010de10c0,0000000010e0fd67]

To fix add in the missing SOFTIRQENTRY_TEXT section into the m68k linker
scripts. I noticed that m68k is also missing the IRQENTRY_TEXT section,
so this patch also adds an entry for that too.

Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/m68k/kernel/vmlinux-nommu.lds | 2 ++
 arch/m68k/kernel/vmlinux-std.lds   | 2 ++
 arch/m68k/kernel/vmlinux-sun3.lds  | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/arch/m68k/kernel/vmlinux-nommu.lds b/arch/m68k/kernel/vmlinux-nommu.lds
index 06a763f49fd3..30115ba7783d 100644
--- a/arch/m68k/kernel/vmlinux-nommu.lds
+++ b/arch/m68k/kernel/vmlinux-nommu.lds
@@ -44,6 +44,8 @@ SECTIONS {
 	.text : {
 		HEAD_TEXT
 		TEXT_TEXT
+		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
 		*(.fixup)
diff --git a/arch/m68k/kernel/vmlinux-std.lds b/arch/m68k/kernel/vmlinux-std.lds
index d0993594f558..c95b4d306023 100644
--- a/arch/m68k/kernel/vmlinux-std.lds
+++ b/arch/m68k/kernel/vmlinux-std.lds
@@ -15,6 +15,8 @@ SECTIONS
   .text : {
 	HEAD_TEXT
 	TEXT_TEXT
+	IRQENTRY_TEXT
+	SOFTIRQENTRY_TEXT
 	SCHED_TEXT
 	LOCK_TEXT
 	*(.fixup)
diff --git a/arch/m68k/kernel/vmlinux-sun3.lds b/arch/m68k/kernel/vmlinux-sun3.lds
index 8080469ee6c1..b8da085cf38d 100644
--- a/arch/m68k/kernel/vmlinux-sun3.lds
+++ b/arch/m68k/kernel/vmlinux-sun3.lds
@@ -15,6 +15,8 @@ SECTIONS
   .text : {
 	HEAD_TEXT
 	TEXT_TEXT
+	IRQENTRY_TEXT
+	SOFTIRQENTRY_TEXT
 	SCHED_TEXT
 	LOCK_TEXT
 	*(.fixup)
-- 
2.11.0

[PATCH AUTOSEL for 4.4 12/36] ipvlan: Add the skb->mark as flow4's member to lookup route

[Sasha Levin]

From: Gao Feng <gfree.wind@vip.163.com>

[ Upstream commit a98a4ebc8c61d20f0150d6be66e0e65223a347af ]

Current codes don't use skb->mark to assign flowi4_mark, it would
make the policy route rule with fwmark doesn't work as expected.

Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/net/ipvlan/ipvlan_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
index af827faec7fe..8aecea0d5dbf 100644
--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -353,6 +353,7 @@ static int ipvlan_process_v4_outbound(struct sk_buff *skb)
 		.flowi4_oif = dev->ifindex,
 		.flowi4_tos = RT_TOS(ip4h->tos),
 		.flowi4_flags = FLOWI_FLAG_ANYSRC,
+		.flowi4_mark = skb->mark,
 		.daddr = ip4h->daddr,
 		.saddr = ip4h->saddr,
 	};
-- 
2.11.0

[PATCH AUTOSEL for 4.4 14/36] powerpc/perf: Fix oops when grouping different pmu events

[Sasha Levin]

From: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>

[ Upstream commit 5aa04b3eb6fca63d2e9827be656dcadc26d54e11 ]

When user tries to group imc (In-Memory Collections) event with
normal event, (sometime) kernel crashes with following log:

    Faulting instruction address: 0x00000000
    [link register   ] c00000000010ce88 power_check_constraints+0x128/0x980
    ...
    c00000000010e238 power_pmu_event_init+0x268/0x6f0
    c0000000002dc60c perf_try_init_event+0xdc/0x1a0
    c0000000002dce88 perf_event_alloc+0x7b8/0xac0
    c0000000002e92e0 SyS_perf_event_open+0x530/0xda0
    c00000000000b004 system_call+0x38/0xe0

'event_base' field of 'struct hw_perf_event' is used as flags for
normal hw events and used as memory address for imc events. While
grouping these two types of events, collect_events() tries to
interpret imc 'event_base' as a flag, which causes a corruption
resulting in a crash.

Consider only those events which belongs to 'perf_hw_context' in
collect_events().

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Reviewed-By: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/powerpc/perf/core-book3s.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index b2ab164a8094..4eba7c00ea1f 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1381,7 +1381,7 @@ static int collect_events(struct perf_event *group, int max_count,
 	int n = 0;
 	struct perf_event *event;
 
-	if (!is_software_event(group)) {
+	if (group->pmu->task_ctx_nr == perf_hw_context) {
 		if (n >= max_count)
 			return -1;
 		ctrs[n] = group;
@@ -1389,7 +1389,7 @@ static int collect_events(struct perf_event *group, int max_count,
 		events[n++] = group->hw.config;
 	}
 	list_for_each_entry(event, &group->sibling_list, group_entry) {
-		if (!is_software_event(event) &&
+		if (event->pmu->task_ctx_nr == perf_hw_context &&
 		    event->state != PERF_EVENT_STATE_OFF) {
 			if (n >= max_count)
 				return -1;
-- 
2.11.0

[PATCH AUTOSEL for 4.4 15/36] s390/dasd: prevent prefix I/O error

[Sasha Levin]

From: Stefan Haberland <sth@linux.vnet.ibm.com>

[ Upstream commit da340f921d3454f1521671c7a5a43ad3331fbe50 ]

Prevent that a prefix flag is set based on invalid configuration data.
The validity.verify_base flag should only be set for alias devices.
Usually the unit address type is either one of base, PAV alias or
HyperPAV alias. But in cases where the unit address type is not set or
any other value the validity.verify_base flag might be set as well.
This would lead to follow on errors.
Explicitly check for alias devices and set the validity flag only for
them.

Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/s390/block/dasd_eckd.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 9083247f55a8..21d174e9ebdb 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -518,10 +518,12 @@ static int prefix_LRE(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata,
 	pfxdata->validity.define_extent = 1;
 
 	/* private uid is kept up to date, conf_data may be outdated */
-	if (startpriv->uid.type != UA_BASE_DEVICE) {
+	if (startpriv->uid.type == UA_BASE_PAV_ALIAS)
 		pfxdata->validity.verify_base = 1;
-		if (startpriv->uid.type == UA_HYPER_PAV_ALIAS)
-			pfxdata->validity.hyper_pav = 1;
+
+	if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) {
+		pfxdata->validity.verify_base = 1;
+		pfxdata->validity.hyper_pav = 1;
 	}
 
 	/* define extend data (mostly)*/
@@ -3002,10 +3004,12 @@ static int prepare_itcw(struct itcw *itcw,
 	pfxdata.validity.define_extent = 1;
 
 	/* private uid is kept up to date, conf_data may be outdated */
-	if (startpriv->uid.type != UA_BASE_DEVICE) {
+	if (startpriv->uid.type == UA_BASE_PAV_ALIAS)
+		pfxdata.validity.verify_base = 1;
+
+	if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) {
 		pfxdata.validity.verify_base = 1;
-		if (startpriv->uid.type == UA_HYPER_PAV_ALIAS)
-			pfxdata.validity.hyper_pav = 1;
+		pfxdata.validity.hyper_pav = 1;
 	}
 
 	switch (cmd) {
-- 
2.11.0

[PATCH AUTOSEL for 4.4 16/36] gianfar: fix a flooded alignment reports because of padding issue.

[Sasha Levin]

From: Zumeng Chen <zumeng.chen@gmail.com>

[ Upstream commit 58117672943734715bbe7565ac9f062effa524f0 ]

According to LS1021A RM, the value of PAL can be set so that the start of the
IP header in the receive data buffer is aligned to a 32-bit boundary. Normally,
setting PAL = 2 provides minimal padding to ensure such alignment of the IP
header.

However every incoming packet's 8-byte time stamp will be inserted into the
packet data buffer as padding alignment bytes when hardware time stamping is
enabled.

So we set the padding 8+2 here to avoid the flooded alignment faults:

root@128:~# cat /proc/cpu/alignment
User:           0
System:         17539 (inet_gro_receive+0x114/0x2c0)
Skipped:        0
Half:           0
Word:           0
DWord:          0
Multi:          17539
User faults:    2 (fixup)

Also shown when exception report enablement

CPU: 0 PID: 161 Comm: irq/66-eth1_g0_ Not tainted 4.1.21-rt13-WR8.0.0.0_preempt-rt #16
Hardware name: Freescale LS1021A
[<8001b420>] (unwind_backtrace) from [<8001476c>] (show_stack+0x20/0x24)
[<8001476c>] (show_stack) from [<807cfb48>] (dump_stack+0x94/0xac)
[<807cfb48>] (dump_stack) from [<80025d70>] (do_alignment+0x720/0x958)
[<80025d70>] (do_alignment) from [<80009224>] (do_DataAbort+0x40/0xbc)
[<80009224>] (do_DataAbort) from [<80015398>] (__dabt_svc+0x38/0x60)
Exception stack(0x86ad1cc0 to 0x86ad1d08)
1cc0: f9b3e080 86b3d072 2d78d287 00000000 866816c0 86b3d05e 86e785d0 00000000
1ce0: 00000011 0000000e 80840ab0 86ad1d3c 86ad1d08 86ad1d08 806d7fc0 806d806c
1d00: 40070013 ffffffff
[<80015398>] (__dabt_svc) from [<806d806c>] (inet_gro_receive+0x114/0x2c0)
[<806d806c>] (inet_gro_receive) from [<80660eec>] (dev_gro_receive+0x21c/0x3c0)
[<80660eec>] (dev_gro_receive) from [<8066133c>] (napi_gro_receive+0x44/0x17c)
[<8066133c>] (napi_gro_receive) from [<804f0538>] (gfar_clean_rx_ring+0x39c/0x7d4)
[<804f0538>] (gfar_clean_rx_ring) from [<804f0bf4>] (gfar_poll_rx_sq+0x58/0xe0)
[<804f0bf4>] (gfar_poll_rx_sq) from [<80660b10>] (net_rx_action+0x27c/0x43c)
[<80660b10>] (net_rx_action) from [<80033638>] (do_current_softirqs+0x1e0/0x3dc)
[<80033638>] (do_current_softirqs) from [<800338c4>] (__local_bh_enable+0x90/0xa8)
[<800338c4>] (__local_bh_enable) from [<8008025c>] (irq_forced_thread_fn+0x70/0x84)
[<8008025c>] (irq_forced_thread_fn) from [<800805e8>] (irq_thread+0x16c/0x244)
[<800805e8>] (irq_thread) from [<8004e490>] (kthread+0xe8/0x104)
[<8004e490>] (kthread) from [<8000fda8>] (ret_from_fork+0x14/0x2c)

Signed-off-by: Zumeng Chen <zumeng.chen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/net/ethernet/freescale/gianfar.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 7923bfdc9b30..901661149b44 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -1375,9 +1375,11 @@ static int gfar_probe(struct platform_device *ofdev)
 
 	gfar_init_addr_hash_table(priv);
 
-	/* Insert receive time stamps into padding alignment bytes */
+	/* Insert receive time stamps into padding alignment bytes, and
+	 * plus 2 bytes padding to ensure the cpu alignment.
+	 */
 	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)
-		priv->padding = 8;
+		priv->padding = 8 + DEFAULT_PADDING;
 
 	if (dev->features & NETIF_F_IP_CSUM ||
 	    priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)
-- 
2.11.0

[PATCH AUTOSEL for 4.4 17/36] net_sched: red: Avoid devision by zero

[Sasha Levin]

From: Nogah Frankel <nogahf@mellanox.com>

[ Upstream commit 5c472203421ab4f928aa1ae9e1dbcfdd80324148 ]

Do not allow delta value to be zero since it is used as a divisor.

Fixes: 8af2a218de38 ("sch_red: Adaptative RED AQM")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 include/net/red.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/red.h b/include/net/red.h
index 76e0b5f922c6..ba5039418a93 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -178,7 +178,7 @@ static inline void red_set_parms(struct red_parms *p,
 	p->qth_max	= qth_max << Wlog;
 	p->Wlog		= Wlog;
 	p->Plog		= Plog;
-	if (delta < 0)
+	if (delta <= 0)
 		delta = 1;
 	p->qth_delta	= delta;
 	if (!max_P) {
-- 
2.11.0

[PATCH AUTOSEL for 4.4 18/36] net_sched: red: Avoid illegal values

[Sasha Levin]

From: Nogah Frankel <nogahf@mellanox.com>

[ Upstream commit 8afa10cbe281b10371fee5a87ab266e48d71a7f9 ]

Check the qmin & qmax values doesn't overflow for the given Wlog value.
Check that qmin <= qmax.

Fixes: a783474591f2 ("[PKT_SCHED]: Generic RED layer")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 include/net/red.h     | 11 +++++++++++
 net/sched/sch_choke.c |  3 +++
 net/sched/sch_gred.c  |  3 +++
 net/sched/sch_red.c   |  2 ++
 net/sched/sch_sfq.c   |  3 +++
 5 files changed, 22 insertions(+)

diff --git a/include/net/red.h b/include/net/red.h
index ba5039418a93..3618cdfec884 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -167,6 +167,17 @@ static inline void red_set_vars(struct red_vars *v)
 	v->qcount	= -1;
 }
 
+static inline bool red_check_params(u32 qth_min, u32 qth_max, u8 Wlog)
+{
+	if (fls(qth_min) + Wlog > 32)
+		return false;
+	if (fls(qth_max) + Wlog > 32)
+		return false;
+	if (qth_max < qth_min)
+		return false;
+	return true;
+}
+
 static inline void red_set_parms(struct red_parms *p,
 				 u32 qth_min, u32 qth_max, u8 Wlog, u8 Plog,
 				 u8 Scell_log, u8 *stab, u32 max_P)
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index 0a08c860eee4..e8dcf94a23c8 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -438,6 +438,9 @@ static int choke_change(struct Qdisc *sch, struct nlattr *opt)
 
 	ctl = nla_data(tb[TCA_CHOKE_PARMS]);
 
+	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog))
+		return -EINVAL;
+
 	if (ctl->limit > CHOKE_MAX_QUEUE)
 		return -EINVAL;
 
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index 80105109f756..f9e8deeeac96 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -389,6 +389,9 @@ static inline int gred_change_vq(struct Qdisc *sch, int dp,
 	struct gred_sched *table = qdisc_priv(sch);
 	struct gred_sched_data *q = table->tab[dp];
 
+	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog))
+		return -EINVAL;
+
 	if (!q) {
 		table->tab[dp] = q = *prealloc;
 		*prealloc = NULL;
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 8c0508c0e287..0505b8408c8b 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -199,6 +199,8 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt)
 	max_P = tb[TCA_RED_MAX_P] ? nla_get_u32(tb[TCA_RED_MAX_P]) : 0;
 
 	ctl = nla_data(tb[TCA_RED_PARMS]);
+	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog))
+		return -EINVAL;
 
 	if (ctl->limit > 0) {
 		child = fifo_create_dflt(sch, &bfifo_qdisc_ops, ctl->limit);
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 3f2c3eed04da..8b8c084b32cd 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -633,6 +633,9 @@ static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
 	if (ctl->divisor &&
 	    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 		return -EINVAL;
+	if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
+					ctl_v1->Wlog))
+		return -EINVAL;
 	if (ctl_v1 && ctl_v1->qth_min) {
 		p = kmalloc(sizeof(*p), GFP_KERNEL);
 		if (!p)
-- 
2.11.0

[PATCH AUTOSEL for 4.4 19/36] dccp: CVE-2017-8824: use-after-free in DCCP code

[Sasha Levin]

From: Mohamed Ghannam <simo.ghannam@gmail.com>

[ Upstream commit 69c64866ce072dea1d1e59a0d61e0f66c0dffb76 ]

Whenever the sock object is in DCCP_CLOSED state,
dccp_disconnect() must free dccps_hc_tx_ccid and
dccps_hc_rx_ccid and set to NULL.

Signed-off-by: Mohamed Ghannam <simo.ghannam@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 net/dccp/proto.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index b68168fcc06a..9d43c1f40274 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -259,6 +259,7 @@ int dccp_disconnect(struct sock *sk, int flags)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct inet_sock *inet = inet_sk(sk);
+	struct dccp_sock *dp = dccp_sk(sk);
 	int err = 0;
 	const int old_state = sk->sk_state;
 
@@ -278,6 +279,10 @@ int dccp_disconnect(struct sock *sk, int flags)
 		sk->sk_err = ECONNRESET;
 
 	dccp_clear_xmit_timers(sk);
+	ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
+	ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
+	dp->dccps_hc_rx_ccid = NULL;
+	dp->dccps_hc_tx_ccid = NULL;
 
 	__skb_queue_purge(&sk->sk_receive_queue);
 	__skb_queue_purge(&sk->sk_write_queue);
-- 
2.11.0

[PATCH AUTOSEL for 4.4 20/36] btrfs: Fix possible off-by-one in btrfs_search_path_in_tree

[Sasha Levin]

From: Nikolay Borisov <nborisov@suse.com>

[ Upstream commit c8bcbfbd239ed60a6562964b58034ac8a25f4c31 ]

The name char array passed to btrfs_search_path_in_tree is of size
BTRFS_INO_LOOKUP_PATH_MAX (4080). So the actual accessible char indexes
are in the range of [0, 4079]. Currently the code uses the define but this
represents an off-by-one.

Implications:

Size of btrfs_ioctl_ino_lookup_args is 4096, so the new byte will be
written to extra space, not some padding that could be provided by the
allocator.

btrfs-progs store the arguments on stack, but kernel does own copy of
the ioctl buffer and the off-by-one overwrite does not affect userspace,
but the ending 0 might be lost.

Kernel ioctl buffer is allocated dynamically so we're overwriting
somebody else's memory, and the ioctl is privileged if args.objectid is
not 256. Which is in most cases, but resolving a subvolume stored in
another directory will trigger that path.

Before this patch the buffer was one byte larger, but then the -1 was
not added.

Fixes: ac8e9819d71f907 ("Btrfs: add search and inode lookup ioctls")
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ added implications ]
Signed-off-by: David Sterba <dsterba@suse.com>

Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 fs/btrfs/ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9c3b9d07f341..4e3c889c1876 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2231,7 +2231,7 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info,
 	if (!path)
 		return -ENOMEM;
 
-	ptr = &name[BTRFS_INO_LOOKUP_PATH_MAX];
+	ptr = &name[BTRFS_INO_LOOKUP_PATH_MAX - 1];
 
 	key.objectid = tree_id;
 	key.type = BTRFS_ROOT_ITEM_KEY;
-- 
2.11.0

[PATCH AUTOSEL for 4.4 22/36] dmaengine: ioat: Fix error handling path

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 5c9afbda911ce20b3f2181d1e440a0222e1027dd ]

If the last test in 'ioat_dma_self_test()' fails, we must release all
the allocated resources and not just part of them.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/dma/ioat/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index abb75ebd65ea..ac8c28968422 100644
--- a/drivers/dma/ioat/init.c
+++ b/drivers/dma/ioat/init.c
@@ -395,7 +395,7 @@ static int ioat_dma_self_test(struct ioatdma_device *ioat_dma)
 	if (memcmp(src, dest, IOAT_TEST_SIZE)) {
 		dev_err(dev, "Self-test copy failed compare, disabling\n");
 		err = -ENODEV;
-		goto free_resources;
+		goto unmap_dma;
 	}
 
 unmap_dma:
-- 
2.11.0

[PATCH AUTOSEL for 4.4 21/36] 509: fix printing uninitialized stack memory when OID is empty

[Sasha Levin]

From: Eric Biggers <ebiggers3@gmail.com>

[ Upstream commit 8dfd2f22d3bf3ab7714f7495ad5d897b8845e8c1 ]

Callers of sprint_oid() do not check its return value before printing
the result.  In the case where the OID is zero-length, -EBADMSG was
being returned without anything being written to the buffer, resulting
in uninitialized stack memory being printed.  Fix this by writing
"(bad)" to the buffer in the cases where -EBADMSG is returned.

Fixes: 4f73175d0375 ("X.509: Add utility functions to render OIDs as strings")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 lib/oid_registry.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/oid_registry.c b/lib/oid_registry.c
index 318f382a010d..150e04d70303 100644
--- a/lib/oid_registry.c
+++ b/lib/oid_registry.c
@@ -116,7 +116,7 @@ int sprint_oid(const void *data, size_t datasize, char *buffer, size_t bufsize)
 	int count;
 
 	if (v >= end)
-		return -EBADMSG;
+		goto bad;
 
 	n = *v++;
 	ret = count = snprintf(buffer, bufsize, "%u.%u", n / 40, n % 40);
@@ -134,7 +134,7 @@ int sprint_oid(const void *data, size_t datasize, char *buffer, size_t bufsize)
 			num = n & 0x7f;
 			do {
 				if (v >= end)
-					return -EBADMSG;
+					goto bad;
 				n = *v++;
 				num <<= 7;
 				num |= n & 0x7f;
@@ -148,6 +148,10 @@ int sprint_oid(const void *data, size_t datasize, char *buffer, size_t bufsize)
 	}
 
 	return ret;
+
+bad:
+	snprintf(buffer, bufsize, "(bad)");
+	return -EBADMSG;
 }
 EXPORT_SYMBOL_GPL(sprint_oid);
 
-- 
2.11.0

[PATCH AUTOSEL for 4.4 23/36] dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved

[Sasha Levin]

From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>

[ Upstream commit 62a277d43d47e74972de44d33bd3763e31992414 ]

_xt_ is being dereferenced before it is null checked, hence there is a
potential null pointer dereference.

Fix this by moving the pointer dereference after _xt_ has been null
checked.

This issue was detected with the help of Coccinelle.

Fixes: 4483320e241c ("dmaengine: Use Pointer xt after NULL check.")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/dma/at_hdmac.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 53d22eb73b56..be26f625bb3e 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -716,7 +716,7 @@ atc_prep_dma_interleaved(struct dma_chan *chan,
 			 unsigned long flags)
 {
 	struct at_dma_chan	*atchan = to_at_dma_chan(chan);
-	struct data_chunk	*first = xt->sgl;
+	struct data_chunk	*first;
 	struct at_desc		*desc = NULL;
 	size_t			xfer_count;
 	unsigned int		dwidth;
@@ -728,6 +728,8 @@ atc_prep_dma_interleaved(struct dma_chan *chan,
 	if (unlikely(!xt || xt->numf != 1 || !xt->frame_size))
 		return NULL;
 
+	first = xt->sgl;
+
 	dev_info(chan2dev(chan),
 		 "%s: src=%pad, dest=%pad, numf=%d, frame_size=%d, flags=0x%lx\n",
 		__func__, &xt->src_start, &xt->dst_start, xt->numf,
-- 
2.11.0

[PATCH AUTOSEL for 4.4 24/36] xfrm: Fix stack-out-of-bounds read on socket policy lookup.

[Sasha Levin]

From: Steffen Klassert <steffen.klassert@secunet.com>

[ Upstream commit ddc47e4404b58f03e98345398fb12d38fe291512 ]

When we do tunnel or beet mode, we pass saddr and daddr from the
template to xfrm_state_find(), this is ok. On transport mode,
we pass the addresses from the flowi, assuming that the IP
addresses (and address family) don't change during transformation.
This assumption is wrong in the IPv4 mapped IPv6 case, packet
is IPv4 and template is IPv6.

Fix this by catching address family missmatches of the policy
and the flow already before we do the lookup.

Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 net/xfrm/xfrm_policy.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 22df3b51e905..4b09a9eaa35f 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1225,9 +1225,15 @@ static struct xfrm_policy *xfrm_sk_policy_lookup(const struct sock *sk, int dir,
 	read_lock_bh(&net->xfrm.xfrm_policy_lock);
 	pol = rcu_dereference(sk->sk_policy[dir]);
 	if (pol != NULL) {
-		bool match = xfrm_selector_match(&pol->selector, fl, family);
+		bool match;
 		int err = 0;
 
+		if (pol->family != family) {
+			pol = NULL;
+			goto out;
+		}
+
+		match = xfrm_selector_match(&pol->selector, fl, family);
 		if (match) {
 			if ((sk->sk_mark & pol->mark.m) != pol->mark.v) {
 				pol = NULL;
-- 
2.11.0

[PATCH AUTOSEL for 4.4 26/36] clk: fix a panic error caused by accessing NULL pointer

[Sasha Levin]

From: Cai Li <cai.li@spreadtrum.com>

[ Upstream commit 975b820b6836b6b6c42fb84cd2e772e2b41bca67 ]

In some cases the clock parent would be set NULL when doing re-parent,
it will cause a NULL pointer accessing if clk_set trace event is
enabled.

This patch sets the parent as "none" if the input parameter is NULL.

Fixes: dfc202ead312 (clk: Add tracepoints for hardware operations)
Signed-off-by: Cai Li <cai.li@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 include/trace/events/clk.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/clk.h b/include/trace/events/clk.h
index 758607226bfd..2cd449328aee 100644
--- a/include/trace/events/clk.h
+++ b/include/trace/events/clk.h
@@ -134,12 +134,12 @@ DECLARE_EVENT_CLASS(clk_parent,
 
 	TP_STRUCT__entry(
 		__string(        name,           core->name                )
-		__string(        pname,          parent->name              )
+		__string(        pname, parent ? parent->name : "none"     )
 	),
 
 	TP_fast_assign(
 		__assign_str(name, core->name);
-		__assign_str(pname, parent->name);
+		__assign_str(pname, parent ? parent->name : "none");
 	),
 
 	TP_printk("%s %s", __get_str(name), __get_str(pname))
-- 
2.11.0

[PATCH AUTOSEL for 4.4 25/36] netfilter: nfnetlink_cthelper: Add missing permission checks

[Sasha Levin]

From: Kevin Cernekee <cernekee@chromium.org>

[ Upstream commit 4b380c42f7d00a395feede754f0bc2292eebe6e5 ]

The capability check in nfnetlink_rcv() verifies that the caller
has CAP_NET_ADMIN in the namespace that "owns" the netlink socket.
However, nfnl_cthelper_list is shared by all net namespaces on the
system.  An unprivileged user can create user and net namespaces
in which he holds CAP_NET_ADMIN to bypass the netlink_net_capable()
check:

    $ nfct helper list
    nfct v1.4.4: netlink error: Operation not permitted
    $ vpnns -- nfct helper list
    {
            .name = ftp,
            .queuenum = 0,
            .l3protonum = 2,
            .l4protonum = 6,
            .priv_data_len = 24,
            .status = enabled,
    };

Add capable() checks in nfnetlink_cthelper, as this is cleaner than
trying to generalize the solution.

Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 net/netfilter/nfnetlink_cthelper.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c
index 8d34a488efc0..ac143ae4f7b6 100644
--- a/net/netfilter/nfnetlink_cthelper.c
+++ b/net/netfilter/nfnetlink_cthelper.c
@@ -17,6 +17,7 @@
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/errno.h>
+#include <linux/capability.h>
 #include <net/netlink.h>
 #include <net/sock.h>
 
@@ -392,6 +393,9 @@ nfnl_cthelper_new(struct sock *nfnl, struct sk_buff *skb,
 	struct nfnl_cthelper *nlcth;
 	int ret = 0;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!tb[NFCTH_NAME] || !tb[NFCTH_TUPLE])
 		return -EINVAL;
 
@@ -595,6 +599,9 @@ nfnl_cthelper_get(struct sock *nfnl, struct sk_buff *skb,
 	struct nfnl_cthelper *nlcth;
 	bool tuple_set = false;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
 		struct netlink_dump_control c = {
 			.dump = nfnl_cthelper_dump_table,
@@ -661,6 +668,9 @@ nfnl_cthelper_del(struct sock *nfnl, struct sk_buff *skb,
 	struct nfnl_cthelper *nlcth, *n;
 	int j = 0, ret;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (tb[NFCTH_NAME])
 		helper_name = nla_data(tb[NFCTH_NAME]);
 
-- 
2.11.0

[PATCH AUTOSEL for 4.4 27/36] netfilter: xt_osf: Add missing permission checks

[Sasha Levin]

From: Kevin Cernekee <cernekee@chromium.org>

[ Upstream commit 916a27901de01446bcf57ecca4783f6cff493309 ]

The capability check in nfnetlink_rcv() verifies that the caller
has CAP_NET_ADMIN in the namespace that "owns" the netlink socket.
However, xt_osf_fingers is shared by all net namespaces on the
system.  An unprivileged user can create user and net namespaces
in which he holds CAP_NET_ADMIN to bypass the netlink_net_capable()
check:

    vpnns -- nfnl_osf -f /tmp/pf.os

    vpnns -- nfnl_osf -f /tmp/pf.os -d

These non-root operations successfully modify the systemwide OS
fingerprint list.  Add new capable() checks so that they can't.

Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 net/netfilter/xt_osf.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/netfilter/xt_osf.c b/net/netfilter/xt_osf.c
index df8801e02a32..7eae0d0af89a 100644
--- a/net/netfilter/xt_osf.c
+++ b/net/netfilter/xt_osf.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 
+#include <linux/capability.h>
 #include <linux/if.h>
 #include <linux/inetdevice.h>
 #include <linux/ip.h>
@@ -69,6 +70,9 @@ static int xt_osf_add_callback(struct sock *ctnl, struct sk_buff *skb,
 	struct xt_osf_finger *kf = NULL, *sf;
 	int err = 0;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!osf_attrs[OSF_ATTR_FINGER])
 		return -EINVAL;
 
@@ -112,6 +116,9 @@ static int xt_osf_remove_callback(struct sock *ctnl, struct sk_buff *skb,
 	struct xt_osf_finger *sf;
 	int err = -ENOENT;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!osf_attrs[OSF_ATTR_FINGER])
 		return -EINVAL;
 
-- 
2.11.0

[PATCH AUTOSEL for 4.4 28/36] ASoC: rockchip: disable clock on error

[Sasha Levin]

From: Stefan Potyra <Stefan.Potyra@elektrobit.com>

[ Upstream commit c7b92172a61b91936be985cb9bc499a4ebc6489b ]

Disable the clocks in  rk_spdif_probe when an error occurs after one
of the clocks has been enabled previously.

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: f874b80e1571 ASoC: rockchip: Add rockchip SPDIF transceiver driver
Signed-off-by: Stefan Potyra <Stefan.Potyra@elektrobit.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 sound/soc/rockchip/rockchip_spdif.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_spdif.c b/sound/soc/rockchip/rockchip_spdif.c
index 5a806da89f42..dae80be6ca71 100644
--- a/sound/soc/rockchip/rockchip_spdif.c
+++ b/sound/soc/rockchip/rockchip_spdif.c
@@ -316,26 +316,30 @@ static int rk_spdif_probe(struct platform_device *pdev)
 	spdif->mclk = devm_clk_get(&pdev->dev, "mclk");
 	if (IS_ERR(spdif->mclk)) {
 		dev_err(&pdev->dev, "Can't retrieve rk_spdif master clock\n");
-		return PTR_ERR(spdif->mclk);
+		ret = PTR_ERR(spdif->mclk);
+		goto err_disable_hclk;
 	}
 
 	ret = clk_prepare_enable(spdif->mclk);
 	if (ret) {
 		dev_err(spdif->dev, "clock enable failed %d\n", ret);
-		return ret;
+		goto err_disable_clocks;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(regs))
-		return PTR_ERR(regs);
+	if (IS_ERR(regs)) {
+		ret = PTR_ERR(regs);
+		goto err_disable_clocks;
+	}
 
 	spdif->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "hclk", regs,
 						  &rk_spdif_regmap_config);
 	if (IS_ERR(spdif->regmap)) {
 		dev_err(&pdev->dev,
 			"Failed to initialise managed register map\n");
-		return PTR_ERR(spdif->regmap);
+		ret = PTR_ERR(spdif->regmap);
+		goto err_disable_clocks;
 	}
 
 	spdif->playback_dma_data.addr = res->start + SPDIF_SMPDR;
@@ -367,6 +371,10 @@ static int rk_spdif_probe(struct platform_device *pdev)
 
 err_pm_runtime:
 	pm_runtime_disable(&pdev->dev);
+err_disable_clocks:
+	clk_disable_unprepare(spdif->mclk);
+err_disable_hclk:
+	clk_disable_unprepare(spdif->hclk);
 
 	return ret;
 }
-- 
2.11.0

[PATCH AUTOSEL for 4.4 29/36] spi: sun4i: disable clocks in the remove function

[Sasha Levin]

From: Takuo Koguchi <takuo.koguchi@gmail.com>

[ Upstream commit c810daba0ab5226084a56893a789af427a801146 ]

mclk and hclk need to be disabled. Since pm_runtime_disable does
not disable the clocks, use pm_runtime_force_suspend instead.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Takuo Koguchi <takuo.koguchi.sw@hitachi.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/spi/spi-sun4i.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sun4i.c b/drivers/spi/spi-sun4i.c
index 39d7c7c70112..2eea3de5a668 100644
--- a/drivers/spi/spi-sun4i.c
+++ b/drivers/spi/spi-sun4i.c
@@ -458,7 +458,7 @@ static int sun4i_spi_probe(struct platform_device *pdev)
 
 static int sun4i_spi_remove(struct platform_device *pdev)
 {
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_force_suspend(&pdev->dev);
 
 	return 0;
 }
-- 
2.11.0

[PATCH AUTOSEL for 4.4 30/36] xfrm: Fix stack-out-of-bounds with misconfigured transport mode policies.

[Sasha Levin]

From: Steffen Klassert <steffen.klassert@secunet.com>

[ Upstream commit 732706afe1cc46ef48493b3d2b69c98f36314ae4 ]

On policies with a transport mode template, we pass the addresses
from the flowi to xfrm_state_find(), assuming that the IP addresses
(and address family) don't change during transformation.

Unfortunately our policy template validation is not strict enough.
It is possible to configure policies with transport mode template
where the address family of the template does not match the selectors
address family. This lead to stack-out-of-bound reads because
we compare arddesses of the wrong family. Fix this by refusing
such a configuration, address family can not change on transport
mode.

We use the assumption that, on transport mode, the first templates
address family must match the address family of the policy selector.
Subsequent transport mode templates must mach the address family of
the previous template.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 net/xfrm/xfrm_user.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 76944a4839a5..a3bf423313fb 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1376,11 +1376,14 @@ static void copy_templates(struct xfrm_policy *xp, struct xfrm_user_tmpl *ut,
 
 static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family)
 {
+	u16 prev_family;
 	int i;
 
 	if (nr > XFRM_MAX_DEPTH)
 		return -EINVAL;
 
+	prev_family = family;
+
 	for (i = 0; i < nr; i++) {
 		/* We never validated the ut->family value, so many
 		 * applications simply leave it at zero.  The check was
@@ -1392,6 +1395,12 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family)
 		if (!ut[i].family)
 			ut[i].family = family;
 
+		if ((ut[i].mode == XFRM_MODE_TRANSPORT) &&
+		    (ut[i].family != prev_family))
+			return -EINVAL;
+
+		prev_family = ut[i].family;
+
 		switch (ut[i].family) {
 		case AF_INET:
 			break;
-- 
2.11.0

[PATCH AUTOSEL for 4.4 31/36] drm/armada: fix leak of crtc structure

[Sasha Levin]

From: Russell King <rmk+kernel@armlinux.org.uk>

[ Upstream commit 33cd3c07a976e11c3c4cc6b0b3db6760ad1590c5 ]

Fix the leak of the CRTC structure in the failure paths of
armada_drm_crtc_create().

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/gpu/drm/armada/armada_crtc.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index cebcab560626..5d68189176cc 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -1182,17 +1182,13 @@ static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
 
 	ret = devm_request_irq(dev, irq, armada_drm_irq, 0, "armada_drm_crtc",
 			       dcrtc);
-	if (ret < 0) {
-		kfree(dcrtc);
-		return ret;
-	}
+	if (ret < 0)
+		goto err_crtc;
 
 	if (dcrtc->variant->init) {
 		ret = dcrtc->variant->init(dcrtc, dev);
-		if (ret) {
-			kfree(dcrtc);
-			return ret;
-		}
+		if (ret)
+			goto err_crtc;
 	}
 
 	/* Ensure AXI pipeline is enabled */
@@ -1203,13 +1199,15 @@ static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
 	dcrtc->crtc.port = port;
 
 	primary = kzalloc(sizeof(*primary), GFP_KERNEL);
-	if (!primary)
-		return -ENOMEM;
+	if (!primary) {
+		ret = -ENOMEM;
+		goto err_crtc;
+	}
 
 	ret = armada_drm_plane_init(primary);
 	if (ret) {
 		kfree(primary);
-		return ret;
+		goto err_crtc;
 	}
 
 	ret = drm_universal_plane_init(drm, &primary->base, 0,
@@ -1219,7 +1217,7 @@ static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
 				       DRM_PLANE_TYPE_PRIMARY);
 	if (ret) {
 		kfree(primary);
-		return ret;
+		goto err_crtc;
 	}
 
 	ret = drm_crtc_init_with_planes(drm, &dcrtc->crtc, &primary->base, NULL,
@@ -1238,6 +1236,9 @@ static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
 
 err_crtc_init:
 	primary->base.funcs->destroy(&primary->base);
+err_crtc:
+	kfree(dcrtc);
+
 	return ret;
 }
 
-- 
2.11.0

[PATCH AUTOSEL for 4.4 32/36] dmaengine: jz4740: disable/unprepare clk if probe fails

[Sasha Levin]

From: Tobias Jordan <Tobias.Jordan@elektrobit.com>

[ Upstream commit eb9436966fdc84cebdf222952a99898ab46d9bb0 ]

in error path of jz4740_dma_probe(), call clk_disable_unprepare() to clean
up.

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: 25ce6c35fea0 MIPS: jz4740: Remove custom DMA API
Signed-off-by: Tobias Jordan <Tobias.Jordan@elektrobit.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/dma/dma-jz4740.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c
index 7638b24ce8d0..35fc58f4bf4b 100644
--- a/drivers/dma/dma-jz4740.c
+++ b/drivers/dma/dma-jz4740.c
@@ -557,7 +557,7 @@ static int jz4740_dma_probe(struct platform_device *pdev)
 
 	ret = dma_async_device_register(dd);
 	if (ret)
-		return ret;
+		goto err_clk;
 
 	irq = platform_get_irq(pdev, 0);
 	ret = request_irq(irq, jz4740_dma_irq, 0, dev_name(&pdev->dev), dmadev);
@@ -570,6 +570,8 @@ static int jz4740_dma_probe(struct platform_device *pdev)
 
 err_unregister:
 	dma_async_device_unregister(dd);
+err_clk:
+	clk_disable_unprepare(dmadev->clk);
 	return ret;
 }
 
-- 
2.11.0

[PATCH AUTOSEL for 4.4 34/36] x86/mm/kmmio: Fix mmiotrace for page unaligned addresses

[Sasha Levin]

From: Karol Herbst <kherbst@redhat.com>

[ Upstream commit 6d60ce384d1d5ca32b595244db4077a419acc687 ]

If something calls ioremap() with an address not aligned to PAGE_SIZE, the
returned address might be not aligned as well. This led to a probe
registered on exactly the returned address, but the entire page was armed
for mmiotracing.

On calling iounmap() the address passed to unregister_kmmio_probe() was
PAGE_SIZE aligned by the caller leading to a complete freeze of the
machine.

We should always page align addresses while (un)registerung mappings,
because the mmiotracer works on top of pages, not mappings. We still keep
track of the probes based on their real addresses and lengths though,
because the mmiotrace still needs to know what are mapped memory regions.

Also move the call to mmiotrace_iounmap() prior page aligning the address,
so that all probes are unregistered properly, otherwise the kernel ends up
failing memory allocations randomly after disabling the mmiotracer.

Tested-by: Lyude <lyude@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: nouveau@lists.freedesktop.org
Link: http://lkml.kernel.org/r/20171127075139.4928-1-kherbst@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/x86/mm/ioremap.c |  4 ++--
 arch/x86/mm/kmmio.c   | 12 +++++++-----
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index b9c78f3bcd67..53ab3f367472 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -348,11 +348,11 @@ void iounmap(volatile void __iomem *addr)
 	    (void __force *)addr < phys_to_virt(ISA_END_ADDRESS))
 		return;
 
+	mmiotrace_iounmap(addr);
+
 	addr = (volatile void __iomem *)
 		(PAGE_MASK & (unsigned long __force)addr);
 
-	mmiotrace_iounmap(addr);
-
 	/* Use the vm area unlocked, assuming the caller
 	   ensures there isn't another iounmap for the same address
 	   in parallel. Reuse of the virtual address is prevented by
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index ddb2244b06a1..76604c8a2a48 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -434,17 +434,18 @@ int register_kmmio_probe(struct kmmio_probe *p)
 	unsigned long flags;
 	int ret = 0;
 	unsigned long size = 0;
+	unsigned long addr = p->addr & PAGE_MASK;
 	const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK);
 	unsigned int l;
 	pte_t *pte;
 
 	spin_lock_irqsave(&kmmio_lock, flags);
-	if (get_kmmio_probe(p->addr)) {
+	if (get_kmmio_probe(addr)) {
 		ret = -EEXIST;
 		goto out;
 	}
 
-	pte = lookup_address(p->addr, &l);
+	pte = lookup_address(addr, &l);
 	if (!pte) {
 		ret = -EINVAL;
 		goto out;
@@ -453,7 +454,7 @@ int register_kmmio_probe(struct kmmio_probe *p)
 	kmmio_count++;
 	list_add_rcu(&p->list, &kmmio_probes);
 	while (size < size_lim) {
-		if (add_kmmio_fault_page(p->addr + size))
+		if (add_kmmio_fault_page(addr + size))
 			pr_err("Unable to set page fault.\n");
 		size += page_level_size(l);
 	}
@@ -527,19 +528,20 @@ void unregister_kmmio_probe(struct kmmio_probe *p)
 {
 	unsigned long flags;
 	unsigned long size = 0;
+	unsigned long addr = p->addr & PAGE_MASK;
 	const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK);
 	struct kmmio_fault_page *release_list = NULL;
 	struct kmmio_delayed_release *drelease;
 	unsigned int l;
 	pte_t *pte;
 
-	pte = lookup_address(p->addr, &l);
+	pte = lookup_address(addr, &l);
 	if (!pte)
 		return;
 
 	spin_lock_irqsave(&kmmio_lock, flags);
 	while (size < size_lim) {
-		release_kmmio_fault_page(p->addr + size, &release_list);
+		release_kmmio_fault_page(addr + size, &release_list);
 		size += page_level_size(l);
 	}
 	list_del_rcu(&p->list);
-- 
2.11.0

[PATCH AUTOSEL for 4.4 35/36] xen: XEN_ACPI_PROCESSOR is Dom0-only

[Sasha Levin]

From: Jan Beulich <JBeulich@suse.com>

[ Upstream commit c4f9d9cb2c29ff04c6b4bb09b72802d8aedfc7cb ]

Add a respective dependency.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/xen/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 73708acce3ca..3a14948269b1 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -239,7 +239,7 @@ config XEN_ACPI_HOTPLUG_CPU
 
 config XEN_ACPI_PROCESSOR
 	tristate "Xen ACPI processor"
-	depends on XEN && X86 && ACPI_PROCESSOR && CPU_FREQ
+	depends on XEN && XEN_DOM0 && X86 && ACPI_PROCESSOR && CPU_FREQ
 	default m
 	help
           This ACPI processor uploads Power Management information to the Xen
-- 
2.11.0

[PATCH AUTOSEL for 4.4 36/36] hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close

[Sasha Levin]

From: Jia-Ju Bai <baijiaju1990@163.com>

[ Upstream commit 6e266610eb6553cfb7e7eb5d11914bd01509c406 ]

The driver may sleep under a spinlock.
The function call path is:
rr_close (acquire the spinlock)
  free_irq --> may sleep

To fix it, free_irq is moved to the place without holding the spinlock.

This bug is found by my static analysis tool(DSAC) and checked by my code review.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/net/hippi/rrunner.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hippi/rrunner.c b/drivers/net/hippi/rrunner.c
index 95c0b45a68fb..313e006f74fe 100644
--- a/drivers/net/hippi/rrunner.c
+++ b/drivers/net/hippi/rrunner.c
@@ -1381,8 +1381,8 @@ static int rr_close(struct net_device *dev)
 			    rrpriv->info_dma);
 	rrpriv->info = NULL;
 
-	free_irq(pdev->irq, dev);
 	spin_unlock_irqrestore(&rrpriv->lock, flags);
+	free_irq(pdev->irq, dev);
 
 	return 0;
 }
-- 
2.11.0