| Message ID | 20240221-parisc_use_generic_checksum-v1-1-ad34d895fd1b@rivosinc.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
| Series | parisc: checksum: Use generic implementations and optimize checksum | expand |
On Wed, Feb 21, 2024 at 06:37:11PM -0800, Charlie Jenkins wrote: > Arches can have more a efficient implementation of csum_partial. > > Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Tested-by: Guenter Roeck <linux@roeck-us.net> > --- > include/asm-generic/checksum.h | 2 ++ > lib/checksum.c | 2 ++ > 2 files changed, 4 insertions(+) > > diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h > index ad928cce268b..3309830ba2cb 100644 > --- a/include/asm-generic/checksum.h > +++ b/include/asm-generic/checksum.h > @@ -4,6 +4,7 @@ > > #include <linux/bitops.h> > > +#ifndef csum_partial > /* > * computes the checksum of a memory block at buff, length len, > * and adds in "sum" (32-bit) > @@ -17,6 +18,7 @@ > * it's best to have buff aligned on a 32-bit boundary > */ > extern __wsum csum_partial(const void *buff, int len, __wsum sum); > +#endif > > #ifndef ip_fast_csum > /* > diff --git a/lib/checksum.c b/lib/checksum.c > index 6860d6b05a17..c115a9ac71d9 100644 > --- a/lib/checksum.c > +++ b/lib/checksum.c > @@ -110,6 +110,7 @@ __sum16 ip_fast_csum(const void *iph, unsigned int ihl) > EXPORT_SYMBOL(ip_fast_csum); > #endif > > +#ifndef csum_partial > /* > * computes the checksum of a memory block at buff, length len, > * and adds in "sum" (32-bit) > @@ -134,6 +135,7 @@ __wsum csum_partial(const void *buff, int len, __wsum wsum) > return (__force __wsum)result; > } > EXPORT_SYMBOL(csum_partial); > +#endif > > /* > * this routine is used for miscellaneous IP-like checksums, mainly > > -- > 2.34.1 >
diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h index ad928cce268b..3309830ba2cb 100644 --- a/include/asm-generic/checksum.h +++ b/include/asm-generic/checksum.h @@ -4,6 +4,7 @@ #include <linux/bitops.h> +#ifndef csum_partial /* * computes the checksum of a memory block at buff, length len, * and adds in "sum" (32-bit) @@ -17,6 +18,7 @@ * it's best to have buff aligned on a 32-bit boundary */ extern __wsum csum_partial(const void *buff, int len, __wsum sum); +#endif #ifndef ip_fast_csum /* diff --git a/lib/checksum.c b/lib/checksum.c index 6860d6b05a17..c115a9ac71d9 100644 --- a/lib/checksum.c +++ b/lib/checksum.c @@ -110,6 +110,7 @@ __sum16 ip_fast_csum(const void *iph, unsigned int ihl) EXPORT_SYMBOL(ip_fast_csum); #endif +#ifndef csum_partial /* * computes the checksum of a memory block at buff, length len, * and adds in "sum" (32-bit) @@ -134,6 +135,7 @@ __wsum csum_partial(const void *buff, int len, __wsum wsum) return (__force __wsum)result; } EXPORT_SYMBOL(csum_partial); +#endif /* * this routine is used for miscellaneous IP-like checksums, mainly
Arches can have more a efficient implementation of csum_partial. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> --- include/asm-generic/checksum.h | 2 ++ lib/checksum.c | 2 ++ 2 files changed, 4 insertions(+)