diff options
| author | James Bottomley <JBottomley@Parallels.com> | 2012-05-26 09:48:19 +0100 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-05-31 11:14:37 +0100 |
| commit | b1195c0e3ee1a1ba986923bf3ed8311b7b336432 (patch) | |
| tree | 026ecd136a3001db5699baf499f061cc971f66e2 | |
| parent | 8275b91aad22144c4e2ea0c68b8d51090a81ba31 (diff) | |
[PARISC] update parisc to use generic strncpy_from_user()
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | arch/parisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/parisc/include/asm/uaccess.h | 5 | ||||
| -rw-r--r-- | arch/parisc/kernel/parisc_ksyms.c | 1 | ||||
| -rw-r--r-- | arch/parisc/lib/lusercopy.S | 41 |
4 files changed, 3 insertions, 45 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index ddb8b24b823..3ff21b536f2 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -18,6 +18,7 @@ config PARISC select IRQ_PER_CPU select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_SMP_IDLE_THREAD + select GENERIC_STRNCPY_FROM_USER help The PA-RISC microprocessor is designed by Hewlett-Packard and used diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index 9ac066086f0..4ba2c93770f 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -218,15 +218,14 @@ struct exception_data { extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long); extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long); extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long); -extern long lstrncpy_from_user(char *, const char __user *, long); +extern long strncpy_from_user(char *, const char __user *, long); extern unsigned lclear_user(void __user *,unsigned long); extern long lstrnlen_user(const char __user *,long); - /* * Complex access routines -- macros */ +#define user_addr_max() (~0UL) -#define strncpy_from_user lstrncpy_from_user #define strnlen_user lstrnlen_user #define strlen_user(str) lstrnlen_user(str, 0x7fffffffL) #define clear_user lclear_user diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c index a7bb757a549..ceec85de629 100644 --- a/arch/parisc/kernel/parisc_ksyms.c +++ b/arch/parisc/kernel/parisc_ksyms.c @@ -44,7 +44,6 @@ EXPORT_SYMBOL(__cmpxchg_u64); #endif #include <asm/uaccess.h> -EXPORT_SYMBOL(lstrncpy_from_user); EXPORT_SYMBOL(lclear_user); EXPORT_SYMBOL(lstrnlen_user); diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S index 1bd23ccec17..6f2d9355efe 100644 --- a/arch/parisc/lib/lusercopy.S +++ b/arch/parisc/lib/lusercopy.S @@ -61,47 +61,6 @@ .endm /* - * long lstrncpy_from_user(char *dst, const char *src, long n) - * - * Returns -EFAULT if exception before terminator, - * N if the entire buffer filled, - * otherwise strlen (i.e. excludes zero byte) - */ - -ENTRY(lstrncpy_from_user) - .proc - .callinfo NO_CALLS - .entry - comib,= 0,%r24,$lsfu_done - copy %r24,%r23 - get_sr -1: ldbs,ma 1(%sr1,%r25),%r1 -$lsfu_loop: - stbs,ma %r1,1(%r26) - comib,=,n 0,%r1,$lsfu_done - addib,<>,n -1,%r24,$lsfu_loop -2: ldbs,ma 1(%sr1,%r25),%r1 -$lsfu_done: - sub %r23,%r24,%r28 -$lsfu_exit: - bv %r0(%r2) - nop - .exit -ENDPROC(lstrncpy_from_user) - - .section .fixup,"ax" -3: fixup_branch $lsfu_exit - ldi -EFAULT,%r28 - .previous - - .section __ex_table,"aw" - ASM_ULONG_INSN 1b,3b - ASM_ULONG_INSN 2b,3b - .previous - - .procend - - /* * unsigned long lclear_user(void *to, unsigned long n) * * Returns 0 for success. |