Linux v4.2-4282-gae982073095a
This commit is contained in:
Josh Boyer
parent
bb4aedb375
commit
9700819ad7
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@ -1,103 +0,0 @@
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From 98f07385212073536f303c07ece455acdd4d267f Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=BE=D0=BB=D0=B0=D0=B9=20=D0=9A=D1=83?=
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=?UTF-8?q?=D0=B4=D1=80=D1=8F=D0=B2=D1=86=D0=B5=D0=B2?=
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<nkudriavtsev@gmail.com>
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Date: Tue, 21 Jul 2015 13:31:52 +0300
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Subject: [PATCH] HID: chicony: Add support for Acer Aspire Switch 12
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Acer Aspire Switch 12 keyboard Chicony's controller reports too big usage
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index on the 1st interface. The patch fixes the report. The work based on
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solution from drivers/hid/hid-holtek-mouse.c
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Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=101721
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Signed-off-by: Nicholas Kudriavtsev <nkudriavtsev@gmail.com>
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Signed-off-by: Jiri Kosina <jkosina@suse.com>
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---
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drivers/hid/hid-chicony.c | 26 ++++++++++++++++++++++++++
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drivers/hid/hid-core.c | 1 +
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drivers/hid/hid-ids.h | 1 +
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3 files changed, 28 insertions(+)
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diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c
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index b613d5a79684..bc3cec199fee 100644
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--- a/drivers/hid/hid-chicony.c
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+++ b/drivers/hid/hid-chicony.c
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@@ -20,6 +20,7 @@
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#include <linux/input.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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+#include <linux/usb.h>
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#include "hid-ids.h"
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@@ -57,10 +58,34 @@ static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
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return 1;
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}
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+static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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+ unsigned int *rsize)
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+{
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+ struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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+
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+ if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
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+ /* Change usage maximum and logical maximum from 0x7fff to
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+ * 0x2fff, so they don't exceed HID_MAX_USAGES */
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+ switch (hdev->product) {
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+ case USB_DEVICE_ID_CHICONY_ACER_SWITCH12:
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+ if (*rsize >= 128 && rdesc[64] == 0xff && rdesc[65] == 0x7f
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+ && rdesc[69] == 0xff && rdesc[70] == 0x7f) {
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+ hid_info(hdev, "Fixing up report descriptor\n");
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+ rdesc[65] = rdesc[70] = 0x2f;
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+ }
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+ break;
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+ }
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+
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+ }
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+ return rdesc;
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+}
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+
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+
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static const struct hid_device_id ch_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
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+ { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, ch_devices);
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@@ -68,6 +93,7 @@ MODULE_DEVICE_TABLE(hid, ch_devices);
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static struct hid_driver ch_driver = {
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.name = "chicony",
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.id_table = ch_devices,
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+ .report_fixup = ch_switch12_report_fixup,
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.input_mapping = ch_input_mapping,
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};
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module_hid_driver(ch_driver);
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diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
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index e6fce23b121a..f90ca6574221 100644
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--- a/drivers/hid/hid-core.c
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+++ b/drivers/hid/hid-core.c
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@@ -1807,6 +1807,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
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+ { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
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diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
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index b3b225b75d0a..79210ca8eff1 100644
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--- a/drivers/hid/hid-ids.h
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+++ b/drivers/hid/hid-ids.h
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@@ -233,6 +233,7 @@
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#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE 0x1053
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#define USB_DEVICE_ID_CHICONY_WIRELESS2 0x1123
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#define USB_DEVICE_ID_CHICONY_AK1D 0x1125
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+#define USB_DEVICE_ID_CHICONY_ACER_SWITCH12 0x1421
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#define USB_VENDOR_ID_CHUNGHWAT 0x2247
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#define USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH 0x0001
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--
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2.4.3
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@ -3882,6 +3882,7 @@ CONFIG_HID_EMS_FF=m
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CONFIG_HID_ELECOM=m
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CONFIG_HID_ELO=m
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CONFIG_HID_EZKEY=m
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CONFIG_HID_GEMBIRD=m
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CONFIG_HID_UCLOGIC=m
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CONFIG_HID_WALTOP=m
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CONFIG_HID_ACRUX=m
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@ -5137,6 +5138,7 @@ CONFIG_DMA_ENGINE=y
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CONFIG_DW_DMAC_CORE=m
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CONFIG_DW_DMAC=m
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CONFIG_DW_DMAC_PCI=m
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# CONFIG_IDMA64 is not set
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# CONFIG_DW_DMAC_BIG_ENDIAN_IO is not set
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# CONFIG_TIMB_DMA is not set
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# CONFIG_DMATEST is not set
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@ -501,10 +501,14 @@ CONFIG_NFC_MICROREAD_MEI=m
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# CONFIG_X86_GOLDFISH is not set
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CONFIG_X86_INTEL_LPSS=y
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CONFIG_IDMA64=m
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# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
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# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
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CONFIG_MFD_INTEL_LPSS_ACPI=m
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CONFIG_MFD_INTEL_LPSS_PCI=m
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CONFIG_IOSF_MBI=m
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# CONFIG_IOSF_MBI_DEBUG is not set
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CONFIG_PWM_LPSS=m
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10
kernel.spec
10
kernel.spec
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@ -67,7 +67,7 @@ Summary: The Linux kernel
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# The rc snapshot level
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%define rcrev 0
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# The git snapshot level
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%define gitrev 3
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%define gitrev 4
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# Set rpm version accordingly
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%define rpmversion 4.%{upstream_sublevel}.0
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%endif
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@ -582,9 +582,6 @@ Patch502: firmware-Drop-WARN-from-usermodehelper_read_trylock-.patch
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Patch503: drm-i915-turn-off-wc-mmaps.patch
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#rhbz 1244511
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Patch507: HID-chicony-Add-support-for-Acer-Aspire-Switch-12.patch
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Patch508: kexec-uefi-copy-secure_boot-flag-in-boot-params.patch
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#rhbz 1239050
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@ -606,6 +603,8 @@ Patch514: drm-qxl-validate-monitors-config-modes.patch
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Patch517: vmwgfx-Rework-device-initialization.patch
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Patch518: drm-vmwgfx-Allow-dropped-masters-render-node-like-ac.patch
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Patch519: security-device_cgroup-fix-RCU-lockdep-splat.patch
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Patch904: kdbus.patch
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# END OF PATCH DEFINITIONS
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@ -2053,6 +2052,9 @@ fi
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#
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#
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%changelog
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* Wed Sep 02 2015 Josh Boyer <jwboyer@fedoraproject.org> - 4.3.0-0.rc0.git4.1
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- Linux v4.2-4282-gae982073095a
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* Wed Sep 02 2015 Josh Boyer <jwboyer@fedoraproject.org> - 4.3.0-0.rc0.git3.1
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- Linux v4.2-3986-g73b6fa8e49c2
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@ -0,0 +1,71 @@
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From 28e1b4326abcc66839c6e21dd410fe983ee83fb3 Mon Sep 17 00:00:00 2001
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From: Felipe Balbi <balbi@ti.com>
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Date: Wed, 2 Sep 2015 08:12:28 -0500
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Subject: [PATCH] security: device_cgroup: fix RCU lockdep splat
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while booting AM437x device, the following splat
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triggered:
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[ 12.005238] ===============================
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[ 12.009749] [ INFO: suspicious RCU usage. ]
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[ 12.014116] 4.2.0-next-20150831 #1154 Not tainted
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[ 12.019050] -------------------------------
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[ 12.023408] security/device_cgroup.c:405 device_cgroup:verify_new_ex called without proper synchronization!
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[ 12.033576] other info that might help us debug this:
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[ 12.041942] rcu_scheduler_active = 1, debug_locks = 0
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[ 12.048796] 4 locks held by systemd/1:
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[ 12.052700] #0: (sb_writers#7){.+.+.+}, at: [<c017af84>] __sb_start_write+0x8c/0xb0
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[ 12.060954] #1: (&of->mutex){+.+.+.}, at: [<c01f1600>] kernfs_fop_write+0x50/0x1b8
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[ 12.069085] #2: (s_active#30){++++.+}, at: [<c01f1608>] kernfs_fop_write+0x58/0x1b8
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[ 12.077310] #3: (devcgroup_mutex){+.+...}, at: [<c0317bfc>] devcgroup_access_write+0x20/0x658
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[ 12.086575] stack backtrace:
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[ 12.091124] CPU: 0 PID: 1 Comm: systemd Not tainted 4.2.0-next-20150831 #1154
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[ 12.098609] Hardware name: Generic AM43 (Flattened Device Tree)
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[ 12.104807] [<c001770c>] (unwind_backtrace) from [<c0013a58>] (show_stack+0x10/0x14)
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[ 12.112924] [<c0013a58>] (show_stack) from [<c034f014>] (dump_stack+0x84/0x9c)
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[ 12.120491] [<c034f014>] (dump_stack) from [<c0317a04>] (verify_new_ex+0xc4/0xdc)
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[ 12.128326] [<c0317a04>] (verify_new_ex) from [<c0317f50>] (devcgroup_access_write+0x374/0x658)
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[ 12.137426] [<c0317f50>] (devcgroup_access_write) from [<c00d2800>] (cgroup_file_write+0x28/0x1bc)
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[ 12.146796] [<c00d2800>] (cgroup_file_write) from [<c01f1670>] (kernfs_fop_write+0xc0/0x1b8)
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[ 12.155620] [<c01f1670>] (kernfs_fop_write) from [<c0177c94>] (__vfs_write+0x1c/0xd8)
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[ 12.163783] [<c0177c94>] (__vfs_write) from [<c0178594>] (vfs_write+0x90/0x16c)
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[ 12.171426] [<c0178594>] (vfs_write) from [<c0178db4>] (SyS_write+0x44/0x9c)
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[ 12.178806] [<c0178db4>] (SyS_write) from [<c000f680>] (ret_fast_syscall+0x0/0x1c)
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Fix it by making sure rcu_read_lock() is held
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around calls to parent_has_perm().
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Signed-off-by: Felipe Balbi <balbi@ti.com>
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---
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security/device_cgroup.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/security/device_cgroup.c b/security/device_cgroup.c
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index 73455089feef..dd77ed206fa4 100644
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--- a/security/device_cgroup.c
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+++ b/security/device_cgroup.c
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@@ -608,6 +608,7 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup,
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int count, rc = 0;
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struct dev_exception_item ex;
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struct dev_cgroup *parent = css_to_devcgroup(devcgroup->css.parent);
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+ int ret;
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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@@ -734,7 +735,11 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup,
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break;
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}
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- if (!parent_has_perm(devcgroup, &ex))
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+ rcu_read_lock();
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+ ret = parent_has_perm(devcgroup, &ex);
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+ rcu_read_unlock();
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+
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+ if (!ret)
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return -EPERM;
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rc = dev_exception_add(devcgroup, &ex);
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break;
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--
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2.4.3
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