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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2017-03-21 12:02:25 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-04-26 12:05:56 -0400 |
| commit | 9a677341cd8de01a9eaf2c24a4b735939e507943 (patch) | |
| tree | 2e0a07f71d8fbfd22084c3289b1f5b2ab2bd1aaf /arch/m32r/lib/usercopy.c | |
| parent | m32r: get rid of zeroing (diff) | |
| download | linux-dev-9a677341cd8de01a9eaf2c24a4b735939e507943.tar.xz linux-dev-9a677341cd8de01a9eaf2c24a4b735939e507943.zip | |
m32r: switch to RAW_COPY_USER
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to '')
| -rw-r--r-- | arch/m32r/lib/usercopy.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c index 6aacf5ba0a58..b3ef2c899f96 100644 --- a/arch/m32r/lib/usercopy.c +++ b/arch/m32r/lib/usercopy.c @@ -11,28 +11,6 @@ #include <linux/thread_info.h> #include <linux/uaccess.h> -unsigned long -__generic_copy_to_user(void __user *to, const void *from, unsigned long n) -{ - prefetch(from); - if (access_ok(VERIFY_WRITE, to, n)) - __copy_user(to,from,n); - return n; -} - -unsigned long -__generic_copy_from_user(void *to, const void __user *from, unsigned long n) -{ - unsigned long ret = n; - prefetchw(to); - if (access_ok(VERIFY_READ, from, n)) - ret = __copy_user(to,from,n); - if (unlikely(ret)) - memset(to + n - ret, 0, ret); - return ret; -} - - /* * Copy a null terminated string from userspace. */ |