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author | Al Viro <viro@zeniv.linux.org.uk> | 2020-02-18 14:26:32 -0500 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-05-29 16:11:50 -0400 |
commit | 5904122c46581a5ccee54a51ef07e0d891fd7aef (patch) | |
tree | 433bbafc1e3a3cdbfd291d51cfd858186683dff2 /arch/parisc | |
parent | 24f9aa928c3cc88bae573b39b6976844968f80a0 (diff) | |
download | linux-stable-5904122c46581a5ccee54a51ef07e0d891fd7aef.tar.gz linux-stable-5904122c46581a5ccee54a51ef07e0d891fd7aef.tar.bz2 linux-stable-5904122c46581a5ccee54a51ef07e0d891fd7aef.zip |
take the dummy csum_and_copy_from_user() into net/checksum.h
now that can be done conveniently - all non-trivial cases have
_HAVE_ARCH_COPY_AND_CSUM_FROM_USER defined, so the fallback in
net/checksum.h is used only for dummy (copy_from_user, then
csum_partial) implementation. Allowing us to get rid of all
dummy instances, both of csum_and_copy_from_user() and
csum_partial_copy_from_user().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/parisc')
-rw-r--r-- | arch/parisc/include/asm/checksum.h | 8 | ||||
-rw-r--r-- | arch/parisc/lib/checksum.c | 14 |
2 files changed, 0 insertions, 22 deletions
diff --git a/arch/parisc/include/asm/checksum.h b/arch/parisc/include/asm/checksum.h index 7c69ce9634c7..fe8c63b2d2c3 100644 --- a/arch/parisc/include/asm/checksum.h +++ b/arch/parisc/include/asm/checksum.h @@ -26,14 +26,6 @@ extern __wsum csum_partial(const void *, int, __wsum); */ extern __wsum csum_partial_copy_nocheck(const void *, void *, int, __wsum); -#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER -/* - * this is a new version of the above that records errors it finds in *errp, - * but continues and zeros the rest of the buffer. - */ -extern __wsum csum_and_copy_from_user(const void __user *src, - void *dst, int len, __wsum sum, int *errp); - /* * Optimized for IP headers, which always checksum on 4 octet boundaries. * diff --git a/arch/parisc/lib/checksum.c b/arch/parisc/lib/checksum.c index 4e47c2ff2bcd..c6f161583549 100644 --- a/arch/parisc/lib/checksum.c +++ b/arch/parisc/lib/checksum.c @@ -123,17 +123,3 @@ __wsum csum_partial_copy_nocheck(const void *src, void *dst, return sum; } EXPORT_SYMBOL(csum_partial_copy_nocheck); - -/* - * Copy from userspace and compute checksum. If we catch an exception - * then zero the rest of the buffer. - */ -__wsum csum_and_copy_from_user(const void __user *src, - void *dst, int len, - __wsum sum, int *err_ptr) -{ - if (copy_from_user(dst, src, len)) - *err_ptr = -EFAULT; - return csum_partial(dst, len, sum); -} -EXPORT_SYMBOL(csum_and_copy_from_user); |