diff options
author | Yunhong Jiang <yunhong.jiang@linux.intel.com> | 2017-03-08 23:13:28 -0800 |
---|---|---|
committer | Yunhong Jiang <yunhong.jiang@linux.intel.com> | 2017-03-08 23:36:15 -0800 |
commit | 52f993b8e89487ec9ee15a7fb4979e0f09a45b27 (patch) | |
tree | d65304486afe0bea4a311c783c0d72791c8c0aa2 /kernel/arch/sparc/include/asm/uaccess_64.h | |
parent | c189ccac5702322ed843fe17057035b7222a59b6 (diff) |
Upgrade to 4.4.50-rt62
The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e
where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt
c) One patch has been backported thus revert the patch before applying.
filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run
Upstream status: backport
Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel/arch/sparc/include/asm/uaccess_64.h')
-rw-r--r-- | kernel/arch/sparc/include/asm/uaccess_64.h | 66 |
1 files changed, 3 insertions, 63 deletions
diff --git a/kernel/arch/sparc/include/asm/uaccess_64.h b/kernel/arch/sparc/include/asm/uaccess_64.h index ea6e9a20f..f42851248 100644 --- a/kernel/arch/sparc/include/asm/uaccess_64.h +++ b/kernel/arch/sparc/include/asm/uaccess_64.h @@ -98,7 +98,6 @@ struct exception_table_entry { unsigned int insn, fixup; }; -void __ret_efault(void); void __retl_efault(void); /* Uh, these should become the main single-value transfer routines.. @@ -179,20 +178,6 @@ int __put_user_bad(void); __gu_ret; \ }) -#define __get_user_nocheck_ret(data, addr, size, type, retval) ({ \ - register unsigned long __gu_val __asm__ ("l1"); \ - switch (size) { \ - case 1: __get_user_asm_ret(__gu_val, ub, addr, retval); break; \ - case 2: __get_user_asm_ret(__gu_val, uh, addr, retval); break; \ - case 4: __get_user_asm_ret(__gu_val, uw, addr, retval); break; \ - case 8: __get_user_asm_ret(__gu_val, x, addr, retval); break; \ - default: \ - if (__get_user_bad()) \ - return retval; \ - } \ - data = (__force type) __gu_val; \ -}) - #define __get_user_asm(x, size, addr, ret) \ __asm__ __volatile__( \ "/* Get user asm, inline. */\n" \ @@ -214,80 +199,35 @@ __asm__ __volatile__( \ : "=r" (ret), "=r" (x) : "r" (__m(addr)), \ "i" (-EFAULT)) -#define __get_user_asm_ret(x, size, addr, retval) \ -if (__builtin_constant_p(retval) && retval == -EFAULT) \ - __asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ - "1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b,__ret_efault\n\n\t" \ - ".previous\n\t" \ - : "=r" (x) : "r" (__m(addr))); \ -else \ - __asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ - "1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ - "3:\n\t" \ - "ret\n\t" \ - " restore %%g0, %2, %%o0\n\n\t" \ - ".previous\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\n\t" \ - ".previous\n\t" \ - : "=r" (x) : "r" (__m(addr)), "i" (retval)) - int __get_user_bad(void); unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long size); -unsigned long copy_from_user_fixup(void *to, const void __user *from, - unsigned long size); static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long size) { - unsigned long ret = ___copy_from_user(to, from, size); - - if (unlikely(ret)) - ret = copy_from_user_fixup(to, from, size); - - return ret; + return ___copy_from_user(to, from, size); } #define __copy_from_user copy_from_user unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long size); -unsigned long copy_to_user_fixup(void __user *to, const void *from, - unsigned long size); static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long size) { - unsigned long ret = ___copy_to_user(to, from, size); - - if (unlikely(ret)) - ret = copy_to_user_fixup(to, from, size); - return ret; + return ___copy_to_user(to, from, size); } #define __copy_to_user copy_to_user unsigned long __must_check ___copy_in_user(void __user *to, const void __user *from, unsigned long size); -unsigned long copy_in_user_fixup(void __user *to, void __user *from, - unsigned long size); static inline unsigned long __must_check copy_in_user(void __user *to, void __user *from, unsigned long size) { - unsigned long ret = ___copy_in_user(to, from, size); - - if (unlikely(ret)) - ret = copy_in_user_fixup(to, from, size); - return ret; + return ___copy_in_user(to, from, size); } #define __copy_in_user copy_in_user |