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authorLinus Torvalds <torvalds@woody.osdl.org>2007-01-08 15:07:31 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2007-01-08 15:07:31 -0800
commit86302f417561fec802f88fdfc343265689d4a596 (patch)
tree7fb35e3ba6a54f64316aeb0f4b4fc9947b1c0691 /include
parent74bda9310fe9776f3d940057ac2e7881214577d6 (diff)
parent2dbda7dceca81adfe57c8884be5c66e70822d89a (diff)
downloadop-kernel-dev-86302f417561fec802f88fdfc343265689d4a596.zip
op-kernel-dev-86302f417561fec802f88fdfc343265689d4a596.tar.gz
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] PNX8550: Fix system timer support [MIPS] TX49: Fix use of CDEX build_store_reg() [MIPS] pnx8550: Fix write_config_byte() PCI config space accessor [MIPS] Fix build errors on SEAD [MIPS] SMTC build fix [MIPS] csum_partial and copy in parallel [MIPS] Malta: Add missing MTD file.
Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/checksum.h31
-rw-r--r--include/asm-mips/irq.h6
2 files changed, 22 insertions, 15 deletions
diff --git a/include/asm-mips/checksum.h b/include/asm-mips/checksum.h
index 9b768c3..24cdcc6 100644
--- a/include/asm-mips/checksum.h
+++ b/include/asm-mips/checksum.h
@@ -29,31 +29,38 @@
*/
__wsum csum_partial(const void *buff, int len, __wsum sum);
+__wsum __csum_partial_copy_user(const void *src, void *dst,
+ int len, __wsum sum, int *err_ptr);
+
/*
* this is a new version of the above that records errors it finds in *errp,
* but continues and zeros the rest of the buffer.
*/
-__wsum csum_partial_copy_from_user(const void __user *src,
- void *dst, int len,
- __wsum sum, int *errp);
+static inline
+__wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len,
+ __wsum sum, int *err_ptr)
+{
+ might_sleep();
+ return __csum_partial_copy_user((__force void *)src, dst,
+ len, sum, err_ptr);
+}
/*
* Copy and checksum to user
*/
#define HAVE_CSUM_COPY_USER
-static inline __wsum csum_and_copy_to_user (const void *src, void __user *dst,
- int len, __wsum sum,
- int *err_ptr)
+static inline
+__wsum csum_and_copy_to_user(const void *src, void __user *dst, int len,
+ __wsum sum, int *err_ptr)
{
might_sleep();
- sum = csum_partial(src, len, sum);
-
- if (copy_to_user(dst, src, len)) {
+ if (access_ok(VERIFY_WRITE, dst, len))
+ return __csum_partial_copy_user(src, (__force void *)dst,
+ len, sum, err_ptr);
+ if (len)
*err_ptr = -EFAULT;
- return (__force __wsum)-1;
- }
- return sum;
+ return (__force __wsum)-1; /* invalid checksum */
}
/*
diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h
index 6765708..386da82 100644
--- a/include/asm-mips/irq.h
+++ b/include/asm-mips/irq.h
@@ -31,14 +31,14 @@ static inline int irq_canonicalize(int irq)
* functions will take over re-enabling the low-level mask.
* Otherwise it will be done on return from exception.
*/
-#define __DO_IRQ_SMTC_HOOK() \
+#define __DO_IRQ_SMTC_HOOK(irq) \
do { \
if (irq_hwmask[irq] & 0x0000ff00) \
write_c0_tccontext(read_c0_tccontext() & \
~(irq_hwmask[irq] & 0x0000ff00)); \
} while (0)
#else
-#define __DO_IRQ_SMTC_HOOK() do { } while (0)
+#define __DO_IRQ_SMTC_HOOK(irq) do { } while (0)
#endif
/*
@@ -52,7 +52,7 @@ do { \
#define do_IRQ(irq) \
do { \
irq_enter(); \
- __DO_IRQ_SMTC_HOOK(); \
+ __DO_IRQ_SMTC_HOOK(irq); \
generic_handle_irq(irq); \
irq_exit(); \
} while (0)
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