diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/traps.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/traps_32.c | 1 | ||||
| -rw-r--r-- | arch/unicore32/kernel/traps.c | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/bios_ebda.h | 28 | ||||
| -rw-r--r-- | arch/x86/kernel/dumpstack.c | 1 |
6 files changed, 26 insertions, 7 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 3b54ad19d489..d52eec268b47 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -234,7 +234,6 @@ static int __die(const char *str, int err, struct thread_info *thread, struct pt printk(KERN_EMERG "Internal error: %s: %x [#%d]" S_PREEMPT S_SMP "\n", str, err, ++die_counter); - sysfs_printk_last_file(); /* trap and error numbers are mostly meaningless on ARM */ ret = notify_die(DIE_OOPS, str, regs, err, tsk->thread.trap_no, SIGSEGV); diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 5ddb801bc154..d782cd71c07c 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -143,7 +143,6 @@ int die(const char *str, struct pt_regs *regs, long err) #endif printk("%s\n", ppc_md.name ? ppc_md.name : ""); - sysfs_printk_last_file(); if (notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV) == NOTIFY_STOP) return 1; diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c index 3484c2f65aba..b51a17104b5f 100644 --- a/arch/sh/kernel/traps_32.c +++ b/arch/sh/kernel/traps_32.c @@ -87,7 +87,6 @@ void die(const char * str, struct pt_regs * regs, long err) bust_spinlocks(1); printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter); - sysfs_printk_last_file(); print_modules(); show_regs(regs); diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c index 254e36fa9513..b9a26465e728 100644 --- a/arch/unicore32/kernel/traps.c +++ b/arch/unicore32/kernel/traps.c @@ -192,7 +192,6 @@ static int __die(const char *str, int err, struct thread_info *thread, printk(KERN_EMERG "Internal error: %s: %x [#%d]\n", str, err, ++die_counter); - sysfs_printk_last_file(); /* trap and error numbers are mostly meaningless on UniCore */ ret = notify_die(DIE_OOPS, str, regs, err, tsk->thread.trap_no, \ diff --git a/arch/x86/include/asm/bios_ebda.h b/arch/x86/include/asm/bios_ebda.h index 3c7521063d3f..aa6a3170ab5a 100644 --- a/arch/x86/include/asm/bios_ebda.h +++ b/arch/x86/include/asm/bios_ebda.h @@ -4,16 +4,40 @@ #include <asm/io.h> /* - * there is a real-mode segmented pointer pointing to the - * 4K EBDA area at 0x40E. + * Returns physical address of EBDA. Returns 0 if there is no EBDA. */ static inline unsigned int get_bios_ebda(void) { + /* + * There is a real-mode segmented pointer pointing to the + * 4K EBDA area at 0x40E. + */ unsigned int address = *(unsigned short *)phys_to_virt(0x40E); address <<= 4; return address; /* 0 means none */ } +/* + * Return the sanitized length of the EBDA in bytes, if it exists. + */ +static inline unsigned int get_bios_ebda_length(void) +{ + unsigned int address; + unsigned int length; + + address = get_bios_ebda(); + if (!address) + return 0; + + /* EBDA length is byte 0 of the EBDA (stored in KiB) */ + length = *(unsigned char *)phys_to_virt(address); + length <<= 10; + + /* Trim the length if it extends beyond 640KiB */ + length = min_t(unsigned int, (640 * 1024) - address, length); + return length; +} + void reserve_ebda_region(void); #ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index f478ff6877ef..1aae78f775fc 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -263,7 +263,6 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err) printk("DEBUG_PAGEALLOC"); #endif printk("\n"); - sysfs_printk_last_file(); if (notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV) == NOTIFY_STOP) return 1; |