From: Thomas Gleixner <tglx@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>,
netdev@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
x86@kernel.org, Lu Baolu <baolu.lu@linux.intel.com>,
iommu@lists.linux.dev, linux-wireless@vger.kernel.org,
Herbert Xu <herbert@gondor.apana.org.au>,
linux-crypto@vger.kernel.org, Vlastimil Babka <vbabka@kernel.org>,
linux-mm@kvack.org, David Woodhouse <dwmw2@infradead.org>,
Bernie Thompson <bernie@plugable.com>,
linux-fbdev@vger.kernel.org, "Theodore Tso" <tytso@mit.edu>,
linux-ext4@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Uladzislau Rezki <urezki@gmail.com>,
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Dmitry Vyukov <dvyukov@google.com>,
kasan-dev@googlegroups.com,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Thomas Sailer <t.sailer@alumni.ethz.ch>,
linux-hams@vger.kernel.org,
"Jason A. Donenfeld" <Jason@zx2c4.com>,
Richard Henderson <richard.henderson@linaro.org>,
linux-alpha@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Huacai Chen <chenhuacai@kernel.org>,
loongarch@lists.linux.dev,
Geert Uytterhoeven <geert@linux-m68k.org>,
linux-m68k@lists.linux-m68k.org,
Dinh Nguyen <dinguyen@kernel.org>,
Jonas Bonn <jonas@southpole.se>,
linux-openrisc@vger.kernel.org, Helge Deller <deller@gmx.de>,
linux-parisc@vger.kernel.org,
Michael Ellerman <mpe@ellerman.id.au>,
linuxppc-dev@lists.ozlabs.org, Paul Walmsley <pjw@kernel.org>,
linux-riscv@lists.infradead.org,
Heiko Carstens <hca@linux.ibm.com>,
linux-s390@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
sparclinux@vger.kernel.org
Subject: [patch 10/38] arcnet: Remove function timing code
Date: Fri, 10 Apr 2026 14:19:16 +0200 [thread overview]
Message-ID: <20260410120318.253872322@kernel.org> (raw)
In-Reply-To: <20260410120044.031381086@kernel.org>
ARCNET is a museums piece and the function timing can be done with
ftrace. Remove the cruft.
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: netdev@vger.kernel.org
---
drivers/net/arcnet/arc-rimi.c | 4 ++--
drivers/net/arcnet/arcdevice.h | 20 +-------------------
drivers/net/arcnet/com20020.c | 6 ++----
drivers/net/arcnet/com90io.c | 6 ++----
drivers/net/arcnet/com90xx.c | 4 ++--
5 files changed, 9 insertions(+), 31 deletions(-)
--- a/drivers/net/arcnet/arc-rimi.c
+++ b/drivers/net/arcnet/arc-rimi.c
@@ -291,7 +291,7 @@ static void arcrimi_copy_to_card(struct
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
- TIME(dev, "memcpy_toio", count, memcpy_toio(memaddr, buf, count));
+ memcpy_toio(memaddr, buf, count);
}
static void arcrimi_copy_from_card(struct net_device *dev, int bufnum,
@@ -300,7 +300,7 @@ static void arcrimi_copy_from_card(struc
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
- TIME(dev, "memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
+ memcpy_fromio(buf, memaddr, count);
}
static int node;
--- a/drivers/net/arcnet/arcdevice.h
+++ b/drivers/net/arcnet/arcdevice.h
@@ -11,7 +11,6 @@
#ifndef _LINUX_ARCDEVICE_H
#define _LINUX_ARCDEVICE_H
-#include <asm/timex.h>
#include <linux/if_arcnet.h>
#ifdef __KERNEL__
@@ -62,7 +61,7 @@
#define D_RX 512 /* show rx packets */
#define D_SKB 1024 /* show skb's */
#define D_SKB_SIZE 2048 /* show skb sizes */
-#define D_TIMING 4096 /* show time needed to copy buffers to card */
+#define D_TIMING 4096 /* Not longer supported. Use tracing instead */
#define D_DEBUG 8192 /* Very detailed debug line for line */
#ifndef ARCNET_DEBUG_MAX
@@ -95,23 +94,6 @@ do { \
pr_cont(fmt, ##__VA_ARGS__); \
} while (0)
-/* see how long a function call takes to run, expressed in CPU cycles */
-#define TIME(dev, name, bytes, call) \
-do { \
- if (BUGLVL(D_TIMING)) { \
- unsigned long _x, _y; \
- _x = get_cycles(); \
- call; \
- _y = get_cycles(); \
- arc_printk(D_TIMING, dev, \
- "%s: %d bytes in %lu cycles == %lu Kbytes/100Mcycle\n", \
- name, bytes, _y - _x, \
- 100000000 / 1024 * bytes / (_y - _x + 1)); \
- } else { \
- call; \
- } \
-} while (0)
-
/*
* Time needed to reset the card - in ms (milliseconds). This works on my
* SMC PC100. I can't find a reference that tells me just how long I
--- a/drivers/net/arcnet/com20020.c
+++ b/drivers/net/arcnet/com20020.c
@@ -70,8 +70,7 @@ static void com20020_copy_from_card(stru
arcnet_outb(ofs & 0xff, ioaddr, COM20020_REG_W_ADDR_LO);
/* copy the data */
- TIME(dev, "insb", count,
- arcnet_insb(ioaddr, COM20020_REG_RW_MEMDATA, buf, count));
+ arcnet_insb(ioaddr, COM20020_REG_RW_MEMDATA, buf, count);
}
static void com20020_copy_to_card(struct net_device *dev, int bufnum,
@@ -84,8 +83,7 @@ static void com20020_copy_to_card(struct
arcnet_outb(ofs & 0xff, ioaddr, COM20020_REG_W_ADDR_LO);
/* copy the data */
- TIME(dev, "outsb", count,
- arcnet_outsb(ioaddr, COM20020_REG_RW_MEMDATA, buf, count));
+ arcnet_outsb(ioaddr, COM20020_REG_RW_MEMDATA, buf, count);
}
/* Reset the card and check some basic stuff during the detection stage. */
--- a/drivers/net/arcnet/com90io.c
+++ b/drivers/net/arcnet/com90io.c
@@ -332,15 +332,13 @@ static void com90io_setmask(struct net_d
static void com90io_copy_to_card(struct net_device *dev, int bufnum,
int offset, void *buf, int count)
{
- TIME(dev, "put_whole_buffer", count,
- put_whole_buffer(dev, bufnum * 512 + offset, count, buf));
+ put_whole_buffer(dev, bufnum * 512 + offset, count, buf);
}
static void com90io_copy_from_card(struct net_device *dev, int bufnum,
int offset, void *buf, int count)
{
- TIME(dev, "get_whole_buffer", count,
- get_whole_buffer(dev, bufnum * 512 + offset, count, buf));
+ get_whole_buffer(dev, bufnum * 512 + offset, count, buf);
}
static int io; /* use the insmod io= irq= shmem= options */
--- a/drivers/net/arcnet/com90xx.c
+++ b/drivers/net/arcnet/com90xx.c
@@ -633,7 +633,7 @@ static void com90xx_copy_to_card(struct
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *memaddr = lp->mem_start + bufnum * 512 + offset;
- TIME(dev, "memcpy_toio", count, memcpy_toio(memaddr, buf, count));
+ memcpy_toio(memaddr, buf, count);
}
static void com90xx_copy_from_card(struct net_device *dev, int bufnum,
@@ -642,7 +642,7 @@ static void com90xx_copy_from_card(struc
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *memaddr = lp->mem_start + bufnum * 512 + offset;
- TIME(dev, "memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
+ memcpy_fromio(buf, memaddr, count);
}
MODULE_DESCRIPTION("ARCnet COM90xx normal chipset driver");
next prev parent reply other threads:[~2026-04-10 12:19 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-10 12:18 [patch 00/38] treewide: Cleanup LATCH, CLOCK_TICK_RATE and get_cycles() [ab]use Thomas Gleixner
2026-04-10 12:18 ` [patch 01/38] percpu: Sanitize __percpu_qual include hell Thomas Gleixner
2026-04-10 12:18 ` [patch 02/38] x86: Cleanup include recursion hell Thomas Gleixner
2026-04-10 12:18 ` [patch 03/38] x86/apm: Remove last LATCH usage Thomas Gleixner
2026-04-10 12:18 ` [patch 04/38] x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE Thomas Gleixner
2026-04-10 12:18 ` [patch 05/38] treewide: Remove CLOCK_TICK_RATE Thomas Gleixner
2026-04-10 12:18 ` [patch 06/38] calibrate: Rework delay timer calibration Thomas Gleixner
2026-04-10 12:19 ` [patch 07/38] treewide: Consolidate cycles_t Thomas Gleixner
2026-04-10 12:19 ` [patch 08/38] x86/tsc: Use rdtsc() instead of get_cycles() Thomas Gleixner
2026-04-10 12:19 ` [patch 09/38] iommu/vt-d: Use sched_clock() " Thomas Gleixner
2026-04-10 13:45 ` Baolu Lu
2026-04-10 15:14 ` Thomas Gleixner
2026-04-10 12:19 ` Thomas Gleixner [this message]
2026-04-10 12:19 ` [patch 11/38] misc: sgi-gru: Remove get_cycles() [ab]use Thomas Gleixner
2026-04-10 12:19 ` [patch 12/38] wifi: wil6210: Replace get_cyles() usage Thomas Gleixner
2026-04-10 12:19 ` [patch 13/38] crypto: tcrypt: Replace get_cycles() with ktime_get() Thomas Gleixner
2026-04-10 12:19 ` [patch 14/38] slub: Use prandom instead of get_cycles() Thomas Gleixner
2026-04-10 12:19 ` [patch 15/38] ptp: ptp_vmclock: Replace get_cycles() usage Thomas Gleixner
2026-04-10 12:19 ` [patch 16/38] fbdev: udlfb: Replace get_cycles() with ktime_get() Thomas Gleixner
2026-04-10 12:19 ` [patch 17/38] ext4: Replace get_cycles() usage " Thomas Gleixner
2026-04-10 12:19 ` [patch 18/38] lib/tests: Replace get_cycles() " Thomas Gleixner
2026-04-10 12:20 ` [patch 19/38] kcsan: Replace get_cycles() usage Thomas Gleixner
2026-04-10 13:39 ` Marco Elver
2026-04-10 12:20 ` [patch 20/38] kasan: sw_tags: Replace get_cycles() by random_get_entropy() Thomas Gleixner
2026-04-10 12:20 ` [patch 21/38] hamradio: baycom_epp: Remove BAYCOM_DEBUG Thomas Gleixner
2026-04-10 12:20 ` [patch 22/38] random: Provide CONFIG_ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-10 12:20 ` [patch 23/38] alpha: Select ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-10 12:20 ` [patch 24/38] ARM: " Thomas Gleixner
2026-04-10 12:20 ` [patch 25/38] arm64: " Thomas Gleixner
2026-04-10 12:20 ` [patch 26/38] loongarch: " Thomas Gleixner
2026-04-10 12:20 ` [patch 27/38] m68k: " Thomas Gleixner
2026-04-10 15:31 ` Daniel Palmer
2026-04-10 12:20 ` [patch 28/38] mips: " Thomas Gleixner
2026-04-10 12:20 ` [patch 29/38] nios2: " Thomas Gleixner
2026-04-10 12:20 ` [patch 30/38] openrisc: " Thomas Gleixner
2026-04-10 12:21 ` [patch 31/38] parisc: " Thomas Gleixner
2026-04-10 12:21 ` [patch 32/38] powerpc/spufs: Use mftb() directly Thomas Gleixner
2026-04-10 12:21 ` [patch 33/38] powerpc: Select ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-10 12:21 ` [patch 34/38] riscv: " Thomas Gleixner
2026-04-10 12:21 ` [patch 35/38] s390: " Thomas Gleixner
2026-04-10 12:21 ` [patch 36/38] sparc: Select ARCH_HAS_RANDOM_ENTROPY for SPARC64 Thomas Gleixner
2026-04-10 12:21 ` [patch 37/38] x86: Select ARCH_HAS_RANDOM_ENTROPY Thomas Gleixner
2026-04-10 12:21 ` [patch 38/38] treewide: Remove asm/timex.h includes from generic code Thomas Gleixner
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