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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic: add dummy pgprot_noncached() lib/checksum.c: fix endianess bug asm-generic: hook up new system calls asm-generic: list Arnd as asm-generic maintainer asm-generic: drop HARDIRQ_BITS definition from hardirq.h asm-generic: uaccess: fix up local access_ok() usage asm-generic: uaccess: add missing access_ok() check to strnlen_user()
This commit is contained in:
Linus Torvalds
commit
defe910483
6 changed files with 35 additions and 21 deletions
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@ -2482,6 +2482,14 @@ F: drivers/net/wan/pc300too.c
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F: drivers/net/wan/pci200syn.c
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F: drivers/net/wan/wanxl*
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GENERIC INCLUDE/ASM HEADER FILES
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P: Arnd Bergmann
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M: arnd@arndb.de
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L: linux-arch@vger.kernel.org
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T: git git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git
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S: Maintained
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F: include/asm-generic
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GFS2 FILE SYSTEM
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P: Steven Whitehouse
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M: swhiteho@redhat.com
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@ -11,19 +11,6 @@ typedef struct {
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#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
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#ifndef HARDIRQ_BITS
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#define HARDIRQ_BITS 8
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#endif
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/*
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* The hardirq mask has to be large enough to have
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* space for potentially all IRQ sources in the system
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* nesting on a single CPU:
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*/
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#if (1 << HARDIRQ_BITS) < NR_IRQS
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# error HARDIRQ_BITS is too low!
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#endif
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#ifndef ack_bad_irq
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static inline void ack_bad_irq(unsigned int irq)
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{
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@ -129,6 +129,10 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
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#define move_pte(pte, prot, old_addr, new_addr) (pte)
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#endif
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#ifndef pgprot_noncached
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#define pgprot_noncached(prot) (prot)
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#endif
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#ifndef pgprot_writecombine
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#define pgprot_writecombine pgprot_noncached
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#endif
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@ -163,7 +163,7 @@ static inline __must_check long __copy_to_user(void __user *to,
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#define put_user(x, ptr) \
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({ \
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might_sleep(); \
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__access_ok(ptr, sizeof (*ptr)) ? \
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access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)) ? \
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__put_user(x, ptr) : \
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-EFAULT; \
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})
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@ -219,7 +219,7 @@ extern int __put_user_bad(void) __attribute__((noreturn));
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#define get_user(x, ptr) \
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({ \
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might_sleep(); \
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__access_ok(ptr, sizeof (*ptr)) ? \
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access_ok(VERIFY_READ, ptr, sizeof(*ptr)) ? \
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__get_user(x, ptr) : \
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-EFAULT; \
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})
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@ -244,7 +244,7 @@ static inline long copy_from_user(void *to,
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const void __user * from, unsigned long n)
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{
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might_sleep();
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if (__access_ok(from, n))
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if (access_ok(VERIFY_READ, from, n))
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return __copy_from_user(to, from, n);
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else
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return n;
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@ -254,7 +254,7 @@ static inline long copy_to_user(void __user *to,
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const void *from, unsigned long n)
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{
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might_sleep();
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if (__access_ok(to, n))
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if (access_ok(VERIFY_WRITE, to, n))
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return __copy_to_user(to, from, n);
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else
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return n;
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@ -278,7 +278,7 @@ __strncpy_from_user(char *dst, const char __user *src, long count)
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static inline long
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strncpy_from_user(char *dst, const char __user *src, long count)
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{
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if (!__access_ok(src, 1))
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if (!access_ok(VERIFY_READ, src, 1))
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return -EFAULT;
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return __strncpy_from_user(dst, src, count);
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}
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@ -291,6 +291,8 @@ strncpy_from_user(char *dst, const char __user *src, long count)
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#ifndef strnlen_user
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static inline long strnlen_user(const char __user *src, long n)
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{
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if (!access_ok(VERIFY_READ, src, 1))
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return 0;
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return strlen((void * __force)src) + 1;
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}
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#endif
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@ -316,7 +318,7 @@ static inline __must_check unsigned long
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clear_user(void __user *to, unsigned long n)
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{
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might_sleep();
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if (!__access_ok(to, n))
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if (!access_ok(VERIFY_WRITE, to, n))
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return n;
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return __clear_user(to, n);
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@ -618,8 +618,13 @@ __SYSCALL(__NR_migrate_pages, sys_migrate_pages)
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__SYSCALL(__NR_move_pages, sys_move_pages)
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#endif
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#define __NR_rt_tgsigqueueinfo 240
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__SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
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#define __NR_perf_counter_open 241
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__SYSCALL(__NR_perf_counter_open, sys_perf_counter_open)
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#undef __NR_syscalls
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#define __NR_syscalls 240
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#define __NR_syscalls 242
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/*
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* All syscalls below here should go away really,
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@ -55,7 +55,11 @@ static unsigned int do_csum(const unsigned char *buff, int len)
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goto out;
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odd = 1 & (unsigned long) buff;
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if (odd) {
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#ifdef __LITTLE_ENDIAN
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result = *buff;
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#else
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result += (*buff << 8);
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#endif
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len--;
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buff++;
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}
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@ -71,7 +75,7 @@ static unsigned int do_csum(const unsigned char *buff, int len)
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if (count) {
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unsigned long carry = 0;
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do {
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unsigned long w = *(unsigned long *) buff;
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unsigned long w = *(unsigned int *) buff;
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count--;
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buff += 4;
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result += carry;
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@ -87,7 +91,11 @@ static unsigned int do_csum(const unsigned char *buff, int len)
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}
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}
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if (len & 1)
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#ifdef __LITTLE_ENDIAN
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result += *buff;
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#else
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result += (*buff << 8);
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#endif
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result = from32to16(result);
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if (odd)
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result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
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