diff options
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/kernel/early_printk.c | 2 | ||||
| -rw-r--r-- | arch/x86_64/kernel/io_apic.c | 2 | ||||
| -rw-r--r-- | arch/x86_64/kernel/traps.c | 10 | ||||
| -rw-r--r-- | arch/x86_64/lib/csum-partial.c | 7 | ||||
| -rw-r--r-- | arch/x86_64/lib/csum-wrappers.c | 37 |
5 files changed, 35 insertions, 23 deletions
diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c index e22ecd54870..47b6d90349d 100644 --- a/arch/x86_64/kernel/early_printk.c +++ b/arch/x86_64/kernel/early_printk.c @@ -224,7 +224,7 @@ static int __init setup_early_printk(char *buf) return 0; early_console_initialized = 1; - if (!strcmp(buf,"keep")) + if (strstr(buf, "keep")) keep_early = 1; if (!strncmp(buf, "serial", 6)) { diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index 14654e68241..c80081a6ba4 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -754,10 +754,8 @@ void __setup_vector_irq(int cpu) { /* Initialize vector_irq on a new cpu */ /* This function must be called with vector_lock held */ - unsigned long flags; int irq, vector; - /* Mark the inuse vectors */ for (irq = 0; irq < NR_IRQ_VECTORS; ++irq) { if (!cpu_isset(cpu, irq_domain[irq])) diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index a153d0a01b7..0d65b22f229 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -242,12 +242,19 @@ static int dump_trace_unwind(struct unwind_frame_info *info, void *context) * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack */ +static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) +{ + void *t = (void *)tinfo; + return p > t && p < t + THREAD_SIZE - 3; +} + void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * stack, struct stacktrace_ops *ops, void *data) { const unsigned cpu = smp_processor_id(); unsigned long *irqstack_end = (unsigned long *)cpu_pda(cpu)->irqstackptr; unsigned used = 0; + struct thread_info *tinfo; if (!tsk) tsk = current; @@ -370,7 +377,8 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * s /* * This handles the process stack: */ - HANDLE_STACK (((long) stack & (THREAD_SIZE-1)) != 0); + tinfo = current_thread_info(); + HANDLE_STACK (valid_stack_ptr(tinfo, stack)); #undef HANDLE_STACK } EXPORT_SYMBOL(dump_trace); diff --git a/arch/x86_64/lib/csum-partial.c b/arch/x86_64/lib/csum-partial.c index c493735218d..06ae630de82 100644 --- a/arch/x86_64/lib/csum-partial.c +++ b/arch/x86_64/lib/csum-partial.c @@ -132,9 +132,10 @@ static __force_inline unsigned do_csum(const unsigned char *buff, unsigned len) * * it's best to have buff aligned on a 64-bit boundary */ -unsigned csum_partial(const unsigned char *buff, unsigned len, unsigned sum) +__wsum csum_partial(const void *buff, int len, __wsum sum) { - return add32_with_carry(do_csum(buff, len), sum); + return (__force __wsum)add32_with_carry(do_csum(buff, len), + (__force u32)sum); } EXPORT_SYMBOL(csum_partial); @@ -143,7 +144,7 @@ EXPORT_SYMBOL(csum_partial); * this routine is used for miscellaneous IP-like checksums, mainly * in icmp.c */ -unsigned short ip_compute_csum(unsigned char * buff, int len) +__sum16 ip_compute_csum(const void *buff, int len) { return csum_fold(csum_partial(buff,len,0)); } diff --git a/arch/x86_64/lib/csum-wrappers.c b/arch/x86_64/lib/csum-wrappers.c index b1320ec5842..fd42a4a095f 100644 --- a/arch/x86_64/lib/csum-wrappers.c +++ b/arch/x86_64/lib/csum-wrappers.c @@ -18,9 +18,9 @@ * Returns an 32bit unfolded checksum of the buffer. * src and dst are best aligned to 64bits. */ -unsigned int -csum_partial_copy_from_user(const unsigned char __user *src, unsigned char *dst, - int len, unsigned int isum, int *errp) +__wsum +csum_partial_copy_from_user(const void __user *src, void *dst, + int len, __wsum isum, int *errp) { might_sleep(); *errp = 0; @@ -34,17 +34,19 @@ csum_partial_copy_from_user(const unsigned char __user *src, unsigned char *dst, if (unlikely((unsigned long)src & 6)) { while (((unsigned long)src & 6) && len >= 2) { __u16 val16; - *errp = __get_user(val16, (__u16 __user *)src); + *errp = __get_user(val16, (const __u16 __user *)src); if (*errp) return isum; *(__u16 *)dst = val16; - isum = add32_with_carry(isum, val16); + isum = (__force __wsum)add32_with_carry( + (__force unsigned)isum, val16); src += 2; dst += 2; len -= 2; } } - isum = csum_partial_copy_generic((__force void *)src,dst,len,isum,errp,NULL); + isum = csum_partial_copy_generic((__force const void *)src, + dst, len, isum, errp, NULL); if (likely(*errp == 0)) return isum; } @@ -66,9 +68,9 @@ EXPORT_SYMBOL(csum_partial_copy_from_user); * Returns an 32bit unfolded checksum of the buffer. * src and dst are best aligned to 64bits. */ -unsigned int -csum_partial_copy_to_user(unsigned const char *src, unsigned char __user *dst, - int len, unsigned int isum, int *errp) +__wsum +csum_partial_copy_to_user(const void *src, void __user *dst, + int len, __wsum isum, int *errp) { might_sleep(); if (unlikely(!access_ok(VERIFY_WRITE, dst, len))) { @@ -79,7 +81,8 @@ csum_partial_copy_to_user(unsigned const char *src, unsigned char __user *dst, if (unlikely((unsigned long)dst & 6)) { while (((unsigned long)dst & 6) && len >= 2) { __u16 val16 = *(__u16 *)src; - isum = add32_with_carry(isum, val16); + isum = (__force __wsum)add32_with_carry( + (__force unsigned)isum, val16); *errp = __put_user(val16, (__u16 __user *)dst); if (*errp) return isum; @@ -104,19 +107,21 @@ EXPORT_SYMBOL(csum_partial_copy_to_user); * * Returns an 32bit unfolded checksum of the buffer. */ -unsigned int -csum_partial_copy_nocheck(const unsigned char *src, unsigned char *dst, int len, unsigned int sum) +__wsum +csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) { return csum_partial_copy_generic(src,dst,len,sum,NULL,NULL); } EXPORT_SYMBOL(csum_partial_copy_nocheck); -unsigned short csum_ipv6_magic(struct in6_addr *saddr, struct in6_addr *daddr, - __u32 len, unsigned short proto, unsigned int sum) +__sum16 csum_ipv6_magic(const struct in6_addr *saddr, + const struct in6_addr *daddr, + __u32 len, unsigned short proto, __wsum sum) { __u64 rest, sum64; - rest = (__u64)htonl(len) + (__u64)htons(proto) + (__u64)sum; + rest = (__force __u64)htonl(len) + (__force __u64)htons(proto) + + (__force __u64)sum; asm(" addq (%[saddr]),%[sum]\n" " adcq 8(%[saddr]),%[sum]\n" " adcq (%[daddr]),%[sum]\n" @@ -124,7 +129,7 @@ unsigned short csum_ipv6_magic(struct in6_addr *saddr, struct in6_addr *daddr, " adcq $0,%[sum]\n" : [sum] "=r" (sum64) : "[sum]" (rest),[saddr] "r" (saddr), [daddr] "r" (daddr)); - return csum_fold(add32_with_carry(sum64 & 0xffffffff, sum64>>32)); + return csum_fold((__force __wsum)add32_with_carry(sum64 & 0xffffffff, sum64>>32)); } EXPORT_SYMBOL(csum_ipv6_magic); |