From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de, arnd@arndb.de,
Vineet Gupta <Vineet.Gupta1@synopsys.com>
Subject: [RFC PATCH v1 06/31] asm-generic headers: Allow yet more arch overrides in checksum.h
Date: Wed, 7 Nov 2012 10:47:29 +0100 [thread overview]
Message-ID: <1352281674-2186-7-git-send-email-vgupta@synopsys.com> (raw)
In-Reply-To: <1352281674-2186-1-git-send-email-vgupta@synopsys.com>
arches can have more efficient implementation of these routines
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
include/asm-generic/checksum.h | 4 ++++
lib/checksum.c | 2 ++
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h
index c084767..59811df 100644
--- a/include/asm-generic/checksum.h
+++ b/include/asm-generic/checksum.h
@@ -38,12 +38,15 @@ extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
csum_partial_copy((src), (dst), (len), (sum))
#endif
+#ifndef ip_fast_csum
/*
* This is a version of ip_compute_csum() optimized for IP headers,
* which always checksum on 4 octet boundaries.
*/
extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+#endif
+#ifndef csum_fold
/*
* Fold a partial checksum
*/
@@ -54,6 +57,7 @@ static inline __sum16 csum_fold(__wsum csum)
sum = (sum & 0xffff) + (sum >> 16);
return (__force __sum16)~sum;
}
+#endif
#ifndef csum_tcpudp_nofold
/*
diff --git a/lib/checksum.c b/lib/checksum.c
index 12dceb2..129775e 100644
--- a/lib/checksum.c
+++ b/lib/checksum.c
@@ -102,6 +102,7 @@ out:
}
#endif
+#ifndef ip_fast_csum
/*
* This is a version of ip_compute_csum() optimized for IP headers,
* which always checksum on 4 octet boundaries.
@@ -111,6 +112,7 @@ __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
return (__force __sum16)~do_csum(iph, ihl*4);
}
EXPORT_SYMBOL(ip_fast_csum);
+#endif
/*
* computes the checksum of a memory block at buff, length len,
--
1.7.4.1
next prev parent reply other threads:[~2012-11-07 9:53 UTC|newest]
Thread overview: 107+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-07 9:47 [RFC Patch v1 00/31] Synopsys ARC Linux kernel Port Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 01/31] ARC: Generic Headers Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 02/31] ARC: irqflags Vineet Gupta
2012-11-12 19:50 ` Thomas Gleixner
2013-01-01 7:44 ` Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 03/31] ARC: atomic/bitops/cmpxchg/barriers Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 04/31] asm-generic headers: uaccess.h to conditionally define segment_eq() Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 05/31] ARC: uaccess friends Vineet Gupta
2012-11-07 9:47 ` Vineet Gupta [this message]
2012-11-07 9:47 ` [RFC PATCH v1 07/31] ARC: checksum/byteorder/swab routines Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 08/31] ARC: Fundamental ARCH data-types/defines Vineet Gupta
2012-11-08 7:10 ` Jonas Bonn
2012-11-08 18:52 ` Vineet Gupta
2012-11-08 20:36 ` Jonas Bonn
2012-11-12 13:58 ` Vineet Gupta
2012-11-12 14:12 ` Arnd Bergmann
2012-11-07 9:47 ` [RFC PATCH v1 09/31] ARC: spinlock/rwlock/mutex primitives Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 10/31] ARC: string library Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 11/31] ARC: Low level IRQ/Trap/Exception(non-MMU) Handling Vineet Gupta
2012-11-16 4:58 ` Al Viro
2012-12-27 9:00 ` Vineet Gupta
2012-12-27 13:29 ` Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 12/31] ARC: Interrupt Handling Vineet Gupta
2012-11-12 20:08 ` Thomas Gleixner
2013-01-01 10:46 ` Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 13/31] ARC: Non-MMU Exception Handling Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 14/31] ARC: syscall support Vineet Gupta
2012-11-07 14:21 ` Arnd Bergmann
2012-11-09 9:50 ` James Hogan
2012-11-13 11:41 ` James Hogan
2012-11-13 12:01 ` Jonas Bonn
2012-11-13 12:11 ` James Hogan
2012-11-14 12:23 ` Arnd Bergmann
2012-11-14 12:31 ` James Hogan
2012-11-13 10:13 ` Gilad Ben-Yossef
2012-11-13 10:37 ` Arnd Bergmann
2012-11-15 6:15 ` Vineet Gupta
2012-11-15 12:35 ` Arnd Bergmann
2013-01-17 5:13 ` Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 15/31] ARC: Process/scheduling/clock/Timers/Delay Management Vineet Gupta
2012-11-12 20:29 ` Thomas Gleixner
2013-01-02 7:13 ` Vineet Gupta
2013-01-02 8:45 ` Vineet Gupta
2013-01-04 13:01 ` Frederic Weisbecker
2012-11-07 9:47 ` [RFC PATCH v1 16/31] ARC: Signal handling Vineet Gupta
2012-11-16 5:26 ` Al Viro
2012-12-28 12:34 ` Vineet Gupta
2012-12-28 12:42 ` [PATCH 1/2] ARC: [Review] Preparing to fix incorrect syscall restarts due to signals Vineet Gupta
2012-12-28 12:42 ` [PATCH 2/2] ARC: [Review] Prevent incorrect syscall restarts Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 17/31] ARC: Cache Flush Management Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 18/31] ARC: Page Table Management Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 19/31] ARC: MMU Context Management Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 20/31] ARC: MMU Exception Handling Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 21/31] ARC: TLB flush Handling Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 22/31] ARC: Page Fault handling (incl uaccess fixup) Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 23/31] ARC: I/O and DMA Mappings Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 24/31] ARC: startup #1: low-level, setup_arch(), /proc/cpuinfo, mem init Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 25/31] ARC: [plat-arcfpga] Hooking up platform to ARC UART Vineet Gupta
2012-11-07 14:16 ` Arnd Bergmann
2013-01-07 13:10 ` Vineet Gupta
2013-01-07 13:46 ` Arnd Bergmann
2013-01-07 14:04 ` Vineet Gupta
2013-01-07 14:36 ` Arnd Bergmann
2013-01-14 7:35 ` early init dt for earlyprintk (was Re: [RFC PATCH v1 25/31] ARC: [plat-arcfpga] Hooking up platform to ARC UART) Vineet Gupta
2013-01-14 9:48 ` James Hogan
2013-01-14 10:09 ` Vineet Gupta
2013-01-14 10:54 ` Arnd Bergmann
2013-01-17 7:29 ` [RFC PATCH v1 25/31] ARC: [plat-arcfpga] Hooking up platform to ARC UART Vineet Gupta
2013-01-17 10:52 ` Arnd Bergmann
2012-11-07 9:47 ` [RFC PATCH v1 26/31] ARC: Build system: Makefiles, Kconfig, Linker script Vineet Gupta
2012-11-07 14:13 ` Arnd Bergmann
2013-01-02 14:30 ` Vineet Gupta
2013-01-02 14:48 ` Arnd Bergmann
2013-01-03 7:58 ` Vineet Gupta
2013-01-03 8:25 ` Arnd Bergmann
2013-03-11 12:29 ` SYSV IPC broken for no-legacy syscall kernels (was Re: [RFC PATCH v1 26/31] ARC: Build system: Makefiles, Kconfig, Linker script) Vineet Gupta
2013-03-11 12:44 ` James Hogan
2013-03-11 12:56 ` Vineet Gupta
2013-03-11 13:07 ` James Hogan
2013-03-11 13:30 ` Arnd Bergmann
2013-03-11 13:48 ` Vineet Gupta
2013-03-11 14:50 ` Arnd Bergmann
2012-11-15 17:49 ` [RFC PATCH v1 26/31] ARC: Build system: Makefiles, Kconfig, Linker script James Hogan
2012-11-15 19:30 ` Ralf Baechle
2012-11-16 6:36 ` Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 27/31] ARC: Last bits (stubs) to get to a running kernel with UART Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 28/31] ARC: split ret_from_fork, simplify kernel_thread() Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 29/31] ARC: switch to generic kernel_thread() Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 30/31] ARC: switch to generic kernel_execve() and sys_execve() Vineet Gupta
2012-11-16 4:08 ` Al Viro
2012-11-17 14:01 ` Vineet Gupta
2012-11-07 9:47 ` [RFC PATCH v1 31/31] ARC: [plat-arcfpga] defconfig Vineet Gupta
2012-11-07 14:06 ` Arnd Bergmann
2012-11-12 14:18 ` James Hogan
2012-11-12 14:21 ` Arnd Bergmann
2012-11-07 14:36 ` [RFC Patch v1 00/31] Synopsys ARC Linux kernel Port Arnd Bergmann
2012-11-08 19:09 ` Vineet Gupta
2012-11-07 20:46 ` Gilad Ben-Yossef
2012-11-20 13:47 ` Pavel Machek
2012-11-20 13:49 ` Vineet Gupta
2012-11-20 13:59 ` Pavel Machek
2012-11-20 14:17 ` Vineet Gupta
2013-01-18 19:46 ` Pavel Machek
2013-01-18 22:17 ` Arnd Bergmann
2013-01-19 10:15 ` Pavel Machek
2013-01-19 12:32 ` Vineet Gupta
2013-01-19 17:02 ` Pavel Machek
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