diff options
Diffstat (limited to 'crash-driver.patch')
| -rw-r--r-- | crash-driver.patch | 722 |
1 files changed, 0 insertions, 722 deletions
diff --git a/crash-driver.patch b/crash-driver.patch deleted file mode 100644 index 164dc90f5..000000000 --- a/crash-driver.patch +++ /dev/null @@ -1,722 +0,0 @@ -From 973e23bf27b0b2e5021321357fc570cccea3104c Mon Sep 17 00:00:00 2001 -From: Dave Anderson <anderson@redhat.com> -Date: Tue, 26 Nov 2013 12:42:46 -0500 -Subject: [PATCH] crash-driver - -Bugzilla: N/A -Upstream-status: Fedora mustard ---- - arch/arm/include/asm/crash-driver.h | 6 ++ - arch/arm64/include/asm/crash-driver.h | 6 ++ - arch/ia64/include/asm/crash-driver.h | 90 ++++++++++++++++++++++ - arch/ia64/kernel/ia64_ksyms.c | 3 + - arch/powerpc/include/asm/crash-driver.h | 6 ++ - arch/s390/include/asm/crash-driver.h | 60 +++++++++++++++ - arch/s390/mm/maccess.c | 2 + - arch/x86/include/asm/crash-driver.h | 6 ++ - drivers/char/Kconfig | 3 + - drivers/char/Makefile | 2 + - drivers/char/crash.c | 128 ++++++++++++++++++++++++++++++++ - include/asm-generic/crash-driver.h | 72 ++++++++++++++++++ - 12 files changed, 384 insertions(+) - create mode 100644 arch/arm/include/asm/crash-driver.h - create mode 100644 arch/arm64/include/asm/crash-driver.h - create mode 100644 arch/ia64/include/asm/crash-driver.h - create mode 100644 arch/powerpc/include/asm/crash-driver.h - create mode 100644 arch/s390/include/asm/crash-driver.h - create mode 100644 arch/x86/include/asm/crash-driver.h - create mode 100644 drivers/char/crash.c - create mode 100644 include/asm-generic/crash-driver.h - -diff --git a/arch/arm/include/asm/crash-driver.h b/arch/arm/include/asm/crash-driver.h -new file mode 100644 -index 0000000..06e7ae9 ---- /dev/null -+++ b/arch/arm/include/asm/crash-driver.h -@@ -0,0 +1,6 @@ -+#ifndef _ARM_CRASH_H -+#define _ARM_CRASH_H -+ -+#include <asm-generic/crash-driver.h> -+ -+#endif /* _ARM_CRASH_H */ -diff --git a/arch/arm64/include/asm/crash-driver.h b/arch/arm64/include/asm/crash-driver.h -new file mode 100644 -index 0000000..43b26da ---- /dev/null -+++ b/arch/arm64/include/asm/crash-driver.h -@@ -0,0 +1,6 @@ -+#ifndef _ARM64_CRASH_H -+#define _ARM64_CRASH_H -+ -+#include <asm-generic/crash-driver.h> -+ -+#endif /* _ARM64_CRASH_H */ -diff --git a/arch/ia64/include/asm/crash-driver.h b/arch/ia64/include/asm/crash-driver.h -new file mode 100644 -index 0000000..404bcb9 ---- /dev/null -+++ b/arch/ia64/include/asm/crash-driver.h -@@ -0,0 +1,90 @@ -+#ifndef _ASM_IA64_CRASH_H -+#define _ASM_IA64_CRASH_H -+ -+/* -+ * linux/include/asm-ia64/crash-driver.h -+ * -+ * Copyright (c) 2004 Red Hat, Inc. All rights reserved. -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published by -+ * the Free Software Foundation; either version 2, or (at your option) -+ * any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -+ * -+ */ -+ -+#ifdef __KERNEL__ -+ -+#include <linux/efi.h> -+#include <linux/mm.h> -+#include <asm/mmzone.h> -+ -+static inline void * -+map_virtual(u64 offset, struct page **pp) -+{ -+ struct page *page; -+ unsigned long pfn; -+ u32 type; -+ -+ if (REGION_NUMBER(offset) == 5) { -+ char byte; -+ -+ if (__get_user(byte, (char *)offset) == 0) -+ return (void *)offset; -+ else -+ return NULL; -+ } -+ -+ switch (type = efi_mem_type(offset)) -+ { -+ case EFI_LOADER_CODE: -+ case EFI_LOADER_DATA: -+ case EFI_BOOT_SERVICES_CODE: -+ case EFI_BOOT_SERVICES_DATA: -+ case EFI_CONVENTIONAL_MEMORY: -+ break; -+ -+ default: -+ printk(KERN_INFO -+ "crash memory driver: invalid memory type for %lx: %d\n", -+ offset, type); -+ return NULL; -+ } -+ -+ pfn = offset >> PAGE_SHIFT; -+ -+ if (!pfn_valid(pfn)) { -+ printk(KERN_INFO -+ "crash memory driver: invalid pfn: %lx )\n", pfn); -+ return NULL; -+ } -+ -+ page = pfn_to_page(pfn); -+ -+ if (!page->virtual) { -+ printk(KERN_INFO -+ "crash memory driver: offset: %lx page: %lx page->virtual: NULL\n", -+ offset, (unsigned long)page); -+ return NULL; -+ } -+ -+ return (page->virtual + (offset & (PAGE_SIZE-1))); -+} -+ -+static inline void unmap_virtual(struct page *page) -+{ -+ return; -+} -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _ASM_IA64_CRASH_H */ -diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c -index d111248..b14b4c6 100644 ---- a/arch/ia64/kernel/ia64_ksyms.c -+++ b/arch/ia64/kernel/ia64_ksyms.c -@@ -9,3 +9,6 @@ - EXPORT_SYMBOL(min_low_pfn); /* defined by bootmem.c, but not exported by generic code */ - EXPORT_SYMBOL(max_low_pfn); /* defined by bootmem.c, but not exported by generic code */ - #endif -+ -+#include <linux/efi.h> -+EXPORT_SYMBOL_GPL(efi_mem_type); -diff --git a/arch/powerpc/include/asm/crash-driver.h b/arch/powerpc/include/asm/crash-driver.h -new file mode 100644 -index 0000000..50092d9 ---- /dev/null -+++ b/arch/powerpc/include/asm/crash-driver.h -@@ -0,0 +1,6 @@ -+#ifndef _PPC64_CRASH_H -+#define _PPC64_CRASH_H -+ -+#include <asm-generic/crash-driver.h> -+ -+#endif /* _PPC64_CRASH_H */ -diff --git a/arch/s390/include/asm/crash-driver.h b/arch/s390/include/asm/crash-driver.h -new file mode 100644 -index 0000000..552be5e ---- /dev/null -+++ b/arch/s390/include/asm/crash-driver.h -@@ -0,0 +1,60 @@ -+#ifndef _S390_CRASH_H -+#define _S390_CRASH_H -+ -+#ifdef __KERNEL__ -+ -+#include <linux/mm.h> -+#include <linux/highmem.h> -+ -+/* -+ * For swapped prefix pages get bounce buffer using xlate_dev_mem_ptr() -+ */ -+static inline void *map_virtual(u64 offset, struct page **pp) -+{ -+ struct page *page; -+ unsigned long pfn; -+ void *vaddr; -+ -+ vaddr = xlate_dev_mem_ptr(offset); -+ pfn = ((unsigned long) vaddr) >> PAGE_SHIFT; -+ if ((unsigned long) vaddr != offset) -+ page = pfn_to_page(pfn); -+ else -+ page = NULL; -+ -+ if (!page_is_ram(pfn)) { -+ printk(KERN_INFO -+ "crash memory driver: !page_is_ram(pfn: %lx)\n", pfn); -+ return NULL; -+ } -+ -+ if (!pfn_valid(pfn)) { -+ printk(KERN_INFO -+ "crash memory driver: invalid pfn: %lx )\n", pfn); -+ return NULL; -+ } -+ -+ *pp = page; -+ return vaddr; -+} -+ -+/* -+ * Free bounce buffer if necessary -+ */ -+static inline void unmap_virtual(struct page *page) -+{ -+ void *vaddr; -+ -+ if (page) { -+ /* -+ * Because for bounce buffers vaddr will never be 0 -+ * unxlate_dev_mem_ptr() will always free the bounce buffer. -+ */ -+ vaddr = (void *)(page_to_pfn(page) << PAGE_SHIFT); -+ unxlate_dev_mem_ptr(0, vaddr); -+ } -+} -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _S390_CRASH_H */ -diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c -index 792f9c6..3197995 100644 ---- a/arch/s390/mm/maccess.c -+++ b/arch/s390/mm/maccess.c -@@ -201,6 +201,7 @@ void *xlate_dev_mem_ptr(phys_addr_t addr) - put_online_cpus(); - return bounce; - } -+EXPORT_SYMBOL_GPL(xlate_dev_mem_ptr); - - /* - * Free converted buffer for /dev/mem access (if necessary) -@@ -210,3 +211,4 @@ void unxlate_dev_mem_ptr(phys_addr_t addr, void *buf) - if ((void *) addr != buf) - free_page((unsigned long) buf); - } -+EXPORT_SYMBOL_GPL(unxlate_dev_mem_ptr); -diff --git a/arch/x86/include/asm/crash-driver.h b/arch/x86/include/asm/crash-driver.h -new file mode 100644 -index 0000000..fd4736e ---- /dev/null -+++ b/arch/x86/include/asm/crash-driver.h -@@ -0,0 +1,6 @@ -+#ifndef _X86_CRASH_H -+#define _X86_CRASH_H -+ -+#include <asm-generic/crash-driver.h> -+ -+#endif /* _X86_CRASH_H */ -diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig -index dcc0973..99b99d5 100644 ---- a/drivers/char/Kconfig -+++ b/drivers/char/Kconfig -@@ -4,6 +4,9 @@ - - menu "Character devices" - -+config CRASH -+ tristate "Crash Utility memory driver" -+ - source "drivers/tty/Kconfig" - - config DEVMEM -diff --git a/drivers/char/Makefile b/drivers/char/Makefile -index 6e6c244..29cc9c8 100644 ---- a/drivers/char/Makefile -+++ b/drivers/char/Makefile -@@ -58,3 +58,5 @@ js-rtc-y = rtc.o - obj-$(CONFIG_XILLYBUS) += xillybus/ - obj-$(CONFIG_POWERNV_OP_PANEL) += powernv-op-panel.o - obj-$(CONFIG_ADI) += adi.o -+ -+obj-$(CONFIG_CRASH) += crash.o -diff --git a/drivers/char/crash.c b/drivers/char/crash.c -new file mode 100644 -index 0000000..085378a ---- /dev/null -+++ b/drivers/char/crash.c -@@ -0,0 +1,128 @@ -+/* -+ * linux/drivers/char/crash.c -+ * -+ * Copyright (C) 2004 Dave Anderson <anderson@redhat.com> -+ * Copyright (C) 2004 Red Hat, Inc. -+ */ -+ -+/****************************************************************************** -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published by -+ * the Free Software Foundation; either version 2, or (at your option) -+ * any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -+ * -+ *****************************************************************************/ -+ -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/miscdevice.h> -+#include <linux/init.h> -+#include <asm/io.h> -+#include <linux/uaccess.h> -+#include <asm/types.h> -+#include <asm/crash-driver.h> -+ -+#define CRASH_VERSION "1.0" -+ -+/* -+ * These are the file operation functions that allow crash utility -+ * access to physical memory. -+ */ -+ -+static loff_t -+crash_llseek(struct file * file, loff_t offset, int orig) -+{ -+ switch (orig) { -+ case 0: -+ file->f_pos = offset; -+ return file->f_pos; -+ case 1: -+ file->f_pos += offset; -+ return file->f_pos; -+ default: -+ return -EINVAL; -+ } -+} -+ -+/* -+ * Determine the page address for an address offset value, -+ * get a virtual address for it, and copy it out. -+ * Accesses must fit within a page. -+ */ -+static ssize_t -+crash_read(struct file *file, char *buf, size_t count, loff_t *poff) -+{ -+ void *vaddr; -+ struct page *page; -+ u64 offset; -+ ssize_t read; -+ -+ offset = *poff; -+ if (offset >> PAGE_SHIFT != (offset+count-1) >> PAGE_SHIFT) -+ return -EINVAL; -+ -+ vaddr = map_virtual(offset, &page); -+ if (!vaddr) -+ return -EFAULT; -+ -+ if (copy_to_user(buf, vaddr, count)) { -+ unmap_virtual(page); -+ return -EFAULT; -+ } -+ unmap_virtual(page); -+ -+ read = count; -+ *poff += read; -+ return read; -+} -+ -+static struct file_operations crash_fops = { -+ .owner = THIS_MODULE, -+ .llseek = crash_llseek, -+ .read = crash_read, -+}; -+ -+static struct miscdevice crash_dev = { -+ MISC_DYNAMIC_MINOR, -+ "crash", -+ &crash_fops -+}; -+ -+static int __init -+crash_init(void) -+{ -+ int ret; -+ -+ ret = misc_register(&crash_dev); -+ if (ret) { -+ printk(KERN_ERR -+ "crash memory driver: cannot misc_register (MISC_DYNAMIC_MINOR)\n"); -+ goto out; -+ } -+ -+ ret = 0; -+ printk(KERN_INFO "crash memory driver: version %s\n", CRASH_VERSION); -+out: -+ return ret; -+} -+ -+static void __exit -+crash_cleanup_module(void) -+{ -+ misc_deregister(&crash_dev); -+} -+ -+module_init(crash_init); -+module_exit(crash_cleanup_module); -+ -+MODULE_LICENSE("GPL"); -diff --git a/include/asm-generic/crash-driver.h b/include/asm-generic/crash-driver.h -new file mode 100644 -index 0000000..25ab986 ---- /dev/null -+++ b/include/asm-generic/crash-driver.h -@@ -0,0 +1,72 @@ -+#ifndef __CRASH_H__ -+#define __CRASH_H__ -+ -+/* -+ * include/linux/crash-driver.h -+ * -+ * Copyright (c) 2013 Red Hat, Inc. All rights reserved. -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published by -+ * the Free Software Foundation; either version 2, or (at your option) -+ * any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -+ * -+ */ -+ -+#ifdef __KERNEL__ -+ -+#include <linux/mm.h> -+#include <linux/highmem.h> -+ -+static inline void * -+map_virtual(u64 offset, struct page **pp) -+{ -+ struct page *page; -+ unsigned long pfn; -+ void *vaddr; -+ -+ pfn = (unsigned long)(offset >> PAGE_SHIFT); -+ -+ if (!page_is_ram(pfn)) { -+ printk(KERN_INFO -+ "crash memory driver: !page_is_ram(pfn: %lx)\n", pfn); -+ return NULL; -+ } -+ -+ if (!pfn_valid(pfn)) { -+ printk(KERN_INFO -+ "crash memory driver: invalid pfn: %lx )\n", pfn); -+ return NULL; -+ } -+ -+ page = pfn_to_page(pfn); -+ -+ vaddr = kmap(page); -+ if (!vaddr) { -+ printk(KERN_INFO -+ "crash memory driver: pfn: %lx kmap(page: %lx) failed\n", -+ pfn, (unsigned long)page); -+ return NULL; -+ } -+ -+ *pp = page; -+ return (vaddr + (offset & (PAGE_SIZE-1))); -+} -+ -+static inline void unmap_virtual(struct page *page) -+{ -+ kunmap(page); -+} -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* __CRASH_H__ */ --- -2.7.4 - -From 23d8bd48303acda2d3a95a3e1a662784a4fa9fcd Mon Sep 17 00:00:00 2001 -From: Fedora Kernel Team <kernel-team@fedoraproject.org> -Date: Tue, 20 Sep 2016 19:39:46 +0200 -Subject: [PATCH] Update of crash driver to handle CONFIG_HARDENED_USERCOPY and - to restrict the supported architectures. - ---- - drivers/char/Kconfig | 1 + - drivers/char/crash.c | 33 ++++++++++++++++++++++++++++++--- - 2 files changed, 31 insertions(+), 3 deletions(-) - -diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig -index 99b99d5..be6a3ae 100644 ---- a/drivers/char/Kconfig -+++ b/drivers/char/Kconfig -@@ -6,6 +6,7 @@ menu "Character devices" - - config CRASH - tristate "Crash Utility memory driver" -+ depends on X86_32 || X86_64 || ARM || ARM64 || PPC64 || S390 - - source "drivers/tty/Kconfig" - -diff --git a/drivers/char/crash.c b/drivers/char/crash.c -index 085378a..0258bf8 100644 ---- a/drivers/char/crash.c -+++ b/drivers/char/crash.c -@@ -32,7 +32,7 @@ - #include <asm/types.h> - #include <asm/crash-driver.h> - --#define CRASH_VERSION "1.0" -+#define CRASH_VERSION "1.2" - - /* - * These are the file operation functions that allow crash utility -@@ -66,6 +66,7 @@ crash_read(struct file *file, char *buf, size_t count, loff_t *poff) - struct page *page; - u64 offset; - ssize_t read; -+ char *buffer = file->private_data; - - offset = *poff; - if (offset >> PAGE_SHIFT != (offset+count-1) >> PAGE_SHIFT) -@@ -74,8 +75,12 @@ crash_read(struct file *file, char *buf, size_t count, loff_t *poff) - vaddr = map_virtual(offset, &page); - if (!vaddr) - return -EFAULT; -- -- if (copy_to_user(buf, vaddr, count)) { -+ /* -+ * Use bounce buffer to bypass the CONFIG_HARDENED_USERCOPY -+ * kernel text restriction. -+ */ -+ memcpy(buffer, (char *)vaddr, count); -+ if (copy_to_user(buf, buffer, count)) { - unmap_virtual(page); - return -EFAULT; - } -@@ -86,10 +91,32 @@ crash_read(struct file *file, char *buf, size_t count, loff_t *poff) - return read; - } - -+static int -+crash_open(struct inode * inode, struct file * filp) -+{ -+ if (!capable(CAP_SYS_RAWIO)) -+ return -EPERM; -+ -+ filp->private_data = (void *)__get_free_page(GFP_KERNEL); -+ if (!filp->private_data) -+ return -ENOMEM; -+ -+ return 0; -+} -+ -+static int -+crash_release(struct inode *inode, struct file *filp) -+{ -+ free_pages((unsigned long)filp->private_data, 0); -+ return 0; -+} -+ - static struct file_operations crash_fops = { - .owner = THIS_MODULE, - .llseek = crash_llseek, - .read = crash_read, -+ .open = crash_open, -+ .release = crash_release, - }; - - static struct miscdevice crash_dev = { --- -2.7.4 - -From: Dave Anderson <anderson@redhat.com> -Date: Fri, 18 Nov 2016 11:52:35 -0500 -Cc: onestero@redhat.com -Subject: [PATCH v2] Restore live system crash analysis for ARM64 - -This v2 version simplifies the copy out of the kimage_voffset value -to user-space per Oleg's suggestion. - -Upstream status: N/A - -Test: v2 version tested successfully with a modified crash utility - -The following Linux 4.6 commit breaks support for live system -crash analysis on ARM64: - - commit a7f8de168ace487fa7b88cb154e413cf40e87fc6 - Author: Ard Biesheuvel <ard.biesheuvel@linaro.org> - arm64: allow kernel Image to be loaded anywhere in physical memory - -The patchset drastically modified the kernel's virtual memory layout, -where notably the static kernel text and data image was moved from the -unity mapped region into the vmalloc region. Prior to Linux 4.6, -the kernel's __virt_to_phys() function was this: - - #define __virt_to_phys(x) (((phys_addr_t)(x) - PAGE_OFFSET + PHYS_OFFSET)) - -When running on a live system, the crash utility could determine PAGE_OFFSET -by looking at the virtual addresses compiled into the vmlinux file, and -PHYS_OFFSET can be determined by looking at /proc/iomem. - -As of Linux 4.6, it is done differently: - - #define __virt_to_phys(x) ({ \ - phys_addr_t __x = (phys_addr_t)(x); \ - __x & BIT(VA_BITS - 1) ? (__x & ~PAGE_OFFSET) + PHYS_OFFSET : \ - (__x - kimage_voffset); }) - -The PAGE_OFFSET/PHYS_OFFSET section of the conditional expression is for -traditional unity-mapped virtual addresses, but kernel text and static -data requires the new "kimage_voffset" variable. Unfortunately, the -contents of the new "kimage_voffset" variable is not available or -calculatable from a user-space perspective, even with root privileges. - -At least the ARM64 developers made its contents available to modules -with an EXPORT_SYMBOL(kimage_voffset) declaration. Accordingly, with -a modification to the /dev/crash driver to return its contents, the -crash utility can run on a live system. - -The patch allows for architecture-specific DEV_CRASH_ARCH_DATA ioctls -to be created, where this is the first instance of one. - - ---- - arch/arm64/include/asm/crash-driver.h | 16 ++++++++++++++++ - drivers/char/crash.c | 13 ++++++++++++- - 2 files changed, 28 insertions(+), 1 deletion(-) - -diff --git a/arch/arm64/include/asm/crash-driver.h b/arch/arm64/include/asm/crash-driver.h -index 43b26da..fe68e7c 100644 ---- a/arch/arm64/include/asm/crash-driver.h -+++ b/arch/arm64/include/asm/crash-driver.h -@@ -3,4 +3,20 @@ - - #include <asm-generic/crash-driver.h> - -+#define DEV_CRASH_ARCH_DATA _IOR('c', 1, long) -+ -+static long -+crash_arch_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -+{ -+ extern u64 kimage_voffset; -+ -+ switch (cmd) -+ { -+ case DEV_CRASH_ARCH_DATA: -+ return put_user(kimage_voffset, (unsigned long __user *)arg); -+ default: -+ return -EINVAL; -+ } -+} -+ - #endif /* _ARM64_CRASH_H */ -diff --git a/drivers/char/crash.c b/drivers/char/crash.c -index 0258bf8..dfb767c 100644 ---- a/drivers/char/crash.c -+++ b/drivers/char/crash.c -@@ -32,7 +32,7 @@ - #include <asm/types.h> - #include <asm/crash-driver.h> - --#define CRASH_VERSION "1.2" -+#define CRASH_VERSION "1.3" - - /* - * These are the file operation functions that allow crash utility -@@ -111,10 +111,21 @@ crash_release(struct inode *inode, struct file *filp) - return 0; - } - -+static long -+crash_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -+{ -+#ifdef DEV_CRASH_ARCH_DATA -+ return crash_arch_ioctl(file, cmd, arg); -+#else -+ return -EINVAL; -+#endif -+} -+ - static struct file_operations crash_fops = { - .owner = THIS_MODULE, - .llseek = crash_llseek, - .read = crash_read, -+ .unlocked_ioctl = crash_ioctl, - .open = crash_open, - .release = crash_release, - }; --- -1.8.3.1 - |