linux: Fix kmod warning regarding hci_vhci
This commit is contained in:
Thomas Bächler
parent
5482e5e277
commit
8ec4380494
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@ -0,0 +1,76 @@
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From a62207820fb65f168c8a7f9c0abb71d736f3d7e0 Mon Sep 17 00:00:00 2001
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From: Lucas De Marchi <lucas.demarchi@intel.com>
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Date: Tue, 18 Feb 2014 02:19:26 -0300
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Subject: [PATCH] Bluetooth: allocate static minor for vhci
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Commit bfacbb9 (Bluetooth: Use devname:vhci module alias for virtual HCI
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driver) added the module alias to hci_vhci module so it's possible to
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create the /dev/vhci node. However creating an alias without
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specifying the minor doesn't allow us to create the node ahead,
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triggerring module auto-load when it's first accessed.
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Starting with depmod from kmod 16 we started to warn if there's a
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devname alias without specifying the major and minor.
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Let's do the same done for uhid, kvm, fuse and others, specifying a
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fixed minor. In systems with systemd as the init the following will
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happen: on early boot systemd will call "kmod static-nodes" to read
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/lib/modules/$(uname -r)/modules.devname and then create the nodes. When
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first accessed these "dead" nodes will trigger the module loading.
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Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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---
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Documentation/devices.txt | 1 +
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drivers/bluetooth/hci_vhci.c | 3 ++-
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include/linux/miscdevice.h | 1 +
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3 files changed, 4 insertions(+), 1 deletion(-)
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diff --git a/Documentation/devices.txt b/Documentation/devices.txt
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index 80b7241..fce9398 100644
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--- a/Documentation/devices.txt
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+++ b/Documentation/devices.txt
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@@ -353,6 +353,7 @@ Your cooperation is appreciated.
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133 = /dev/exttrp External device trap
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134 = /dev/apm_bios Advanced Power Management BIOS
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135 = /dev/rtc Real Time Clock
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+ 137 = /dev/vhci Bluetooth virtual HCI driver
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139 = /dev/openprom SPARC OpenBoot PROM
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140 = /dev/relay8 Berkshire Products Octal relay card
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141 = /dev/relay16 Berkshire Products ISO-16 relay card
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diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
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index 7b16738..59095e6 100644
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--- a/drivers/bluetooth/hci_vhci.c
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+++ b/drivers/bluetooth/hci_vhci.c
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@@ -352,7 +352,7 @@ static const struct file_operations vhci_fops = {
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static struct miscdevice vhci_miscdev= {
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.name = "vhci",
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.fops = &vhci_fops,
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- .minor = MISC_DYNAMIC_MINOR,
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+ .minor = VHCI_MINOR,
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};
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static int __init vhci_init(void)
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@@ -378,3 +378,4 @@ MODULE_DESCRIPTION("Bluetooth virtual HCI driver ver " VERSION);
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MODULE_VERSION(VERSION);
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("devname:vhci");
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+MODULE_ALIAS_MISCDEV(VHCI_MINOR);
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diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
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index f7eaf2d..e5db611 100644
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--- a/include/linux/miscdevice.h
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+++ b/include/linux/miscdevice.h
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@@ -23,6 +23,7 @@
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#define TEMP_MINOR 131 /* Temperature Sensor */
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#define RTC_MINOR 135
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#define EFI_RTC_MINOR 136 /* EFI Time services */
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+#define VHCI_MINOR 137
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#define SUN_OPENPROM_MINOR 139
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#define DMAPI_MINOR 140 /* DMAPI */
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#define NVRAM_MINOR 144
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--
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1.9.0
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5
PKGBUILD
5
PKGBUILD
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@ -26,6 +26,7 @@ source=("http://www.kernel.org/pub/linux/kernel/v3.x/${_srcname}.tar.xz"
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'0005-sunrpc-add-an-info-file-for-the-dummy-gssd-pipe.patch'
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'0006-rpc_pipe-fix-cleanup-of-dummy-gssd-directory-when-no.patch'
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'0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch'
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'0001-Bluetooth-allocate-static-minor-for-vhci.patch'
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'i8042-fix-aliases.patch'
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)
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md5sums=('0ecbaf65c00374eb4a826c2f9f37606f'
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@ -42,6 +43,7 @@ md5sums=('0ecbaf65c00374eb4a826c2f9f37606f'
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'd5907a721b97299f0685c583499f7820'
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'a724515b350b29c53f20e631c6cf9a14'
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'e6fa278c092ad83780e2dd0568e24ca6'
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'06f1751777e0772c18c3fa4fbae91aa5'
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'93dbf73af819b77f03453a9c6de2bb47')
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_kernelname=${pkgbase#linux}
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@ -85,6 +87,9 @@ prepare() {
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# Fix i8042 aliases
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patch -p1 -i "${srcdir}/i8042-fix-aliases.patch"
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# Fix vhci warning in kmod (to restore every kernel maintainer's sanity)
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patch -p1 -i "${srcdir}/0001-Bluetooth-allocate-static-minor-for-vhci.patch"
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if [ "${CARCH}" = "x86_64" ]; then
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cat "${srcdir}/config.x86_64" > ./.config
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else
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