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Wed, 21 Feb 2024 18:37:33 -0800 (PST) From: Charlie Jenkins Date: Wed, 21 Feb 2024 18:37:11 -0800 Subject: [PATCH 1/4] asm-generic headers: Allow csum_partial arch override Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240221-parisc_use_generic_checksum-v1-1-ad34d895fd1b@rivosinc.com> References: <20240221-parisc_use_generic_checksum-v1-0-ad34d895fd1b@rivosinc.com> In-Reply-To: <20240221-parisc_use_generic_checksum-v1-0-ad34d895fd1b@rivosinc.com> To: "James E.J. Bottomley" , Helge Deller , Arnd Bergmann , Andrew Morton , Guenter Roeck Cc: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Charlie Jenkins X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1708569451; l=1437; i=charlie@rivosinc.com; s=20231120; h=from:subject:message-id; bh=sNekCmUtLWlwQH/XsGvAEvEx2UjQ+qNezBis71mVY4E=; b=g+fjMFlNSWfcCrlu2uFDLLNXHSUDovxevoYfasXSOOsYTDbSYie7Kx4HZ/ltvBWgwxDLH99EH QhtbgMGsTK1C6kG7qoIseYXNTILqnnfDUH9Um6xbzAAZtYxm8RUNSa+ X-Developer-Key: i=charlie@rivosinc.com; a=ed25519; pk=t4RSWpMV1q5lf/NWIeR9z58bcje60/dbtxxmoSfBEcs= X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791564959570725857 X-GMAIL-MSGID: 1791564959570725857 Arches can have more a efficient implementation of csum_partial. Signed-off-by: Charlie Jenkins Tested-by: Guenter Roeck --- 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 +#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