CRIS changes for 3.20

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Merge tag 'cris-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris

Pull CRIS changes from Jesper Nilsson.

* tag 'cris-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris:
  CRIS: Whitespace cleanup
  CRIS: macro whitespace fixes in uaccess.h
  CRIS: uaccess: fix sparse errors
  CRISv32: Remove unnecessary KERN_INFO from sync_serial
  CRIS: Fix missing NR_CPUS in menuconfig
  CRISv32: Avoid warning of unused variable
  CRIS: Avoid warning in cris mm/fault.c
  CRIS: Export csum_partial_copy_nocheck
This commit is contained in:
Linus Torvalds 2015-02-15 18:02:02 -08:00
commit 1fa185ebcb
6 changed files with 111 additions and 76 deletions

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@ -57,6 +57,10 @@ config HZ
int
default 100
config NR_CPUS
int
default "1"
source "init/Kconfig"
source "kernel/Kconfig.freezer"

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@ -1286,7 +1286,7 @@ static void start_dma_out(struct sync_port *port, const char *data, int count)
tr_cfg.tr_en = regk_sser_yes;
REG_WR(sser, port->regi_sser, rw_tr_cfg, tr_cfg);
DEBUGTRDMA(pr_info(KERN_INFO "dma s\n"););
DEBUGTRDMA(pr_info("dma s\n"););
} else {
DMA_CONTINUE_DATA(port->regi_dmaout);
DEBUGTRDMA(pr_info("dma c\n"););
@ -1443,7 +1443,7 @@ static inline void handle_rx_packet(struct sync_port *port)
reg_dma_rw_ack_intr ack_intr = { .data = regk_dma_yes };
unsigned long flags;
DEBUGRXINT(pr_info(KERN_INFO "!"));
DEBUGRXINT(pr_info("!"));
spin_lock_irqsave(&port->lock, flags);
/* If we overrun the user experience is crap regardless if we

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@ -107,8 +107,10 @@ static short int watchdog_key = 42; /* arbitrary 7 bit number */
* is used though, so set this really low. */
#define WATCHDOG_MIN_FREE_PAGES 8
#if defined(CONFIG_ETRAX_WATCHDOG_NICE_DOGGY)
/* for reliable NICE_DOGGY behaviour */
static int bite_in_progress;
#endif
void reset_watchdog(void)
{
@ -155,7 +157,9 @@ void handle_watchdog_bite(struct pt_regs *regs)
nmi_enter();
oops_in_progress = 1;
#if defined(CONFIG_ETRAX_WATCHDOG_NICE_DOGGY)
bite_in_progress = 1;
#endif
printk(KERN_WARNING "Watchdog bite\n");
/* Check if forced restart or unexpected watchdog */

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@ -1,4 +1,4 @@
/*
/*
* Authors: Bjorn Wesen (bjornw@axis.com)
* Hans-Peter Nilsson (hp@axis.com)
*/
@ -35,7 +35,7 @@
#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
/* addr_limit is the maximum accessible address for the task. we misuse
* the KERNEL_DS and USER_DS values to both assign and compare the
* the KERNEL_DS and USER_DS values to both assign and compare the
* addr_limit values through the equally misnamed get/set_fs macros.
* (see above)
*/
@ -47,12 +47,13 @@
#define get_fs() (current_thread_info()->addr_limit)
#define set_fs(x) (current_thread_info()->addr_limit = (x))
#define segment_eq(a,b) ((a).seg == (b).seg)
#define segment_eq(a, b) ((a).seg == (b).seg)
#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
#define __user_ok(addr,size) (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size)))
#define __access_ok(addr,size) (__kernel_ok || __user_ok((addr),(size)))
#define access_ok(type,addr,size) __access_ok((unsigned long)(addr),(size))
#define __user_ok(addr, size) \
(((size) <= TASK_SIZE) && ((addr) <= TASK_SIZE-(size)))
#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
#define access_ok(type, addr, size) __access_ok((unsigned long)(addr), (size))
#include <arch/uaccess.h>
@ -69,8 +70,7 @@
* on our cache or tlb entries.
*/
struct exception_table_entry
{
struct exception_table_entry {
unsigned long insn, fixup;
};
@ -92,56 +92,74 @@ struct exception_table_entry
* CRIS, we can just do these as direct assignments. (Of course, the
* exception handling means that it's no longer "just"...)
*/
#define get_user(x,ptr) \
__get_user_check((x),(ptr),sizeof(*(ptr)))
#define put_user(x,ptr) \
__put_user_check((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr)))
#define get_user(x, ptr) \
__get_user_check((x), (ptr), sizeof(*(ptr)))
#define put_user(x, ptr) \
__put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
#define __get_user(x,ptr) \
__get_user_nocheck((x),(ptr),sizeof(*(ptr)))
#define __put_user(x,ptr) \
__put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr)))
#define __get_user(x, ptr) \
__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
#define __put_user(x, ptr) \
__put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
extern long __put_user_bad(void);
#define __put_user_size(x,ptr,size,retval) \
do { \
retval = 0; \
switch (size) { \
case 1: __put_user_asm(x,ptr,retval,"move.b"); break; \
case 2: __put_user_asm(x,ptr,retval,"move.w"); break; \
case 4: __put_user_asm(x,ptr,retval,"move.d"); break; \
case 8: __put_user_asm_64(x,ptr,retval); break; \
default: __put_user_bad(); \
} \
#define __put_user_size(x, ptr, size, retval) \
do { \
retval = 0; \
switch (size) { \
case 1: \
__put_user_asm(x, ptr, retval, "move.b"); \
break; \
case 2: \
__put_user_asm(x, ptr, retval, "move.w"); \
break; \
case 4: \
__put_user_asm(x, ptr, retval, "move.d"); \
break; \
case 8: \
__put_user_asm_64(x, ptr, retval); \
break; \
default: \
__put_user_bad(); \
} \
} while (0)
#define __get_user_size(x,ptr,size,retval) \
do { \
retval = 0; \
switch (size) { \
case 1: __get_user_asm(x,ptr,retval,"move.b"); break; \
case 2: __get_user_asm(x,ptr,retval,"move.w"); break; \
case 4: __get_user_asm(x,ptr,retval,"move.d"); break; \
case 8: __get_user_asm_64(x,ptr,retval); break; \
default: (x) = __get_user_bad(); \
} \
#define __get_user_size(x, ptr, size, retval) \
do { \
retval = 0; \
switch (size) { \
case 1: \
__get_user_asm(x, ptr, retval, "move.b"); \
break; \
case 2: \
__get_user_asm(x, ptr, retval, "move.w"); \
break; \
case 4: \
__get_user_asm(x, ptr, retval, "move.d"); \
break; \
case 8: \
__get_user_asm_64(x, ptr, retval); \
break; \
default: \
(x) = __get_user_bad(); \
} \
} while (0)
#define __put_user_nocheck(x,ptr,size) \
#define __put_user_nocheck(x, ptr, size) \
({ \
long __pu_err; \
__put_user_size((x),(ptr),(size),__pu_err); \
__put_user_size((x), (ptr), (size), __pu_err); \
__pu_err; \
})
#define __put_user_check(x,ptr,size) \
({ \
long __pu_err = -EFAULT; \
__typeof__(*(ptr)) *__pu_addr = (ptr); \
if (access_ok(VERIFY_WRITE,__pu_addr,size)) \
__put_user_size((x),__pu_addr,(size),__pu_err); \
__pu_err; \
#define __put_user_check(x, ptr, size) \
({ \
long __pu_err = -EFAULT; \
__typeof__(*(ptr)) *__pu_addr = (ptr); \
if (access_ok(VERIFY_WRITE, __pu_addr, size)) \
__put_user_size((x), __pu_addr, (size), __pu_err); \
__pu_err; \
})
struct __large_struct { unsigned long buf[100]; };
@ -149,21 +167,21 @@ struct __large_struct { unsigned long buf[100]; };
#define __get_user_nocheck(x,ptr,size) \
#define __get_user_nocheck(x, ptr, size) \
({ \
long __gu_err, __gu_val; \
__get_user_size(__gu_val,(ptr),(size),__gu_err); \
(x) = (__typeof__(*(ptr)))__gu_val; \
__get_user_size(__gu_val, (ptr), (size), __gu_err); \
(x) = (__force __typeof__(*(ptr)))__gu_val; \
__gu_err; \
})
#define __get_user_check(x,ptr,size) \
#define __get_user_check(x, ptr, size) \
({ \
long __gu_err = -EFAULT, __gu_val = 0; \
const __typeof__(*(ptr)) *__gu_addr = (ptr); \
if (access_ok(VERIFY_READ,__gu_addr,size)) \
__get_user_size(__gu_val,__gu_addr,(size),__gu_err); \
(x) = (__typeof__(*(ptr)))__gu_val; \
if (access_ok(VERIFY_READ, __gu_addr, size)) \
__get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
(x) = (__force __typeof__(*(ptr)))__gu_val; \
__gu_err; \
})
@ -180,7 +198,7 @@ static inline unsigned long
__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
{
if (access_ok(VERIFY_WRITE, to, n))
return __copy_user(to,from,n);
return __copy_user(to, from, n);
return n;
}
@ -188,7 +206,7 @@ static inline unsigned long
__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
{
if (access_ok(VERIFY_READ, from, n))
return __copy_user_zeroing(to,from,n);
return __copy_user_zeroing(to, from, n);
return n;
}
@ -196,7 +214,7 @@ static inline unsigned long
__generic_clear_user(void __user *to, unsigned long n)
{
if (access_ok(VERIFY_WRITE, to, n))
return __do_clear_user(to,n);
return __do_clear_user(to, n);
return n;
}
@ -210,6 +228,7 @@ static inline long
strncpy_from_user(char *dst, const char __user *src, long count)
{
long res = -EFAULT;
if (access_ok(VERIFY_READ, src, 1))
res = __do_strncpy_from_user(dst, src, count);
return res;
@ -223,6 +242,7 @@ static inline unsigned long
__constant_copy_from_user(void *to, const void __user *from, unsigned long n)
{
unsigned long ret = 0;
if (n == 0)
;
else if (n == 1)
@ -273,6 +293,7 @@ static inline unsigned long
__constant_copy_to_user(void __user *to, const void *from, unsigned long n)
{
unsigned long ret = 0;
if (n == 0)
;
else if (n == 1)
@ -323,6 +344,7 @@ static inline unsigned long
__constant_clear_user(void __user *to, unsigned long n)
{
unsigned long ret = 0;
if (n == 0)
;
else if (n == 1)
@ -350,20 +372,20 @@ __constant_clear_user(void __user *to, unsigned long n)
}
#define clear_user(to, n) \
(__builtin_constant_p(n) ? \
__constant_clear_user(to, n) : \
__generic_clear_user(to, n))
#define clear_user(to, n) \
(__builtin_constant_p(n) ? \
__constant_clear_user(to, n) : \
__generic_clear_user(to, n))
#define copy_from_user(to, from, n) \
(__builtin_constant_p(n) ? \
__constant_copy_from_user(to, from, n) : \
__generic_copy_from_user(to, from, n))
#define copy_from_user(to, from, n) \
(__builtin_constant_p(n) ? \
__constant_copy_from_user(to, from, n) : \
__generic_copy_from_user(to, from, n))
#define copy_to_user(to, from, n) \
(__builtin_constant_p(n) ? \
__constant_copy_to_user(to, from, n) : \
__generic_copy_to_user(to, from, n))
#define copy_to_user(to, from, n) \
(__builtin_constant_p(n) ? \
__constant_copy_to_user(to, from, n) : \
__generic_copy_to_user(to, from, n))
/* We let the __ versions of copy_from/to_user inline, because they're often
* used in fast paths and have only a small space overhead.
@ -373,29 +395,31 @@ static inline unsigned long
__generic_copy_from_user_nocheck(void *to, const void __user *from,
unsigned long n)
{
return __copy_user_zeroing(to,from,n);
return __copy_user_zeroing(to, from, n);
}
static inline unsigned long
__generic_copy_to_user_nocheck(void __user *to, const void *from,
unsigned long n)
{
return __copy_user(to,from,n);
return __copy_user(to, from, n);
}
static inline unsigned long
__generic_clear_user_nocheck(void __user *to, unsigned long n)
{
return __do_clear_user(to,n);
return __do_clear_user(to, n);
}
/* without checking */
#define __copy_to_user(to,from,n) __generic_copy_to_user_nocheck((to),(from),(n))
#define __copy_from_user(to,from,n) __generic_copy_from_user_nocheck((to),(from),(n))
#define __copy_to_user(to, from, n) \
__generic_copy_to_user_nocheck((to), (from), (n))
#define __copy_from_user(to, from, n) \
__generic_copy_from_user_nocheck((to), (from), (n))
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user
#define __clear_user(to,n) __generic_clear_user_nocheck((to),(n))
#define __clear_user(to, n) __generic_clear_user_nocheck((to), (n))
#define strlen_user(str) strnlen_user((str), 0x7ffffffe)

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@ -67,3 +67,4 @@ EXPORT_SYMBOL(schedule_usleep);
#endif
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_from_user);
EXPORT_SYMBOL(csum_partial_copy_nocheck);

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@ -219,6 +219,9 @@ retry:
/* User mode accesses just cause a SIGSEGV */
if (user_mode(regs)) {
#ifdef CONFIG_NO_SEGFAULT_TERMINATION
DECLARE_WAIT_QUEUE_HEAD(wq);
#endif
printk(KERN_NOTICE "%s (pid %d) segfaults for page "
"address %08lx at pc %08lx\n",
tsk->comm, tsk->pid,
@ -229,7 +232,6 @@ retry:
show_registers(regs);
#ifdef CONFIG_NO_SEGFAULT_TERMINATION
DECLARE_WAIT_QUEUE_HEAD(wq);
wait_event_interruptible(wq, 0 == 1);
#else
info.si_signo = SIGSEGV;