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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>,
	Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH master 04/23] include: linux/kernel.h: factor out alignment macros
Date: Wed, 24 Apr 2024 08:40:39 +0200	[thread overview]
Message-ID: <20240424064058.3608016-5-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20240424064058.3608016-1-a.fatoum@pengutronix.de>

Linux has already factored these macros into a separate <linux/align.h>.
We now do the same for barebox to avoid a recursive dependency in
incoming patches via linux/pagemap.h, which just needs the align macros
and nothing else out of linux/kernel.h.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 include/linux/align.h   | 13 +++++++++++++
 include/linux/kernel.h  |  9 +--------
 include/linux/pagemap.h |  2 +-
 3 files changed, 15 insertions(+), 9 deletions(-)
 create mode 100644 include/linux/align.h

diff --git a/include/linux/align.h b/include/linux/align.h
new file mode 100644
index 000000000000..8df1b3dcd749
--- /dev/null
+++ b/include/linux/align.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_ALIGN_H
+#define _LINUX_ALIGN_H
+
+#define ALIGN(x, a)		__ALIGN_MASK(x, (typeof(x))(a) - 1)
+#define ALIGN_DOWN(x, a)	ALIGN((x) - ((a) - 1), (a))
+#define __ALIGN_MASK(x, mask)	(((x) + (mask)) & ~(mask))
+#define PTR_ALIGN(p, a)		((typeof(p))ALIGN((unsigned long)(p), (a)))
+#define PTR_ALIGN_DOWN(p, a)	((typeof(p))ALIGN_DOWN((unsigned long)(p), (a)))
+#define PTR_IS_ALIGNED(x, a)	IS_ALIGNED((unsigned long)(x), (a))
+#define IS_ALIGNED(x, a)		(((x) & ((typeof(x))(a) - 1)) == 0)
+
+#endif
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 4e50f6075189..c411ac0860dd 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -10,6 +10,7 @@
 #include <linux/container_of.h>
 #include <linux/instruction_pointer.h>
 #include <linux/minmax.h>
+#include <linux/align.h>
 
 /**
  * REPEAT_BYTE - repeat the value @x multiple times as an unsigned long value
@@ -19,14 +20,6 @@
  */
 #define REPEAT_BYTE(x)	((~0ul / 0xff) * (x))
 
-#define ALIGN(x, a)		__ALIGN_MASK(x, (typeof(x))(a) - 1)
-#define ALIGN_DOWN(x, a)	ALIGN((x) - ((a) - 1), (a))
-#define __ALIGN_MASK(x, mask)	(((x) + (mask)) & ~(mask))
-#define PTR_ALIGN(p, a)		((typeof(p))ALIGN((unsigned long)(p), (a)))
-#define PTR_ALIGN_DOWN(p, a)	((typeof(p))ALIGN_DOWN((unsigned long)(p), (a)))
-#define PTR_IS_ALIGNED(x, a)	IS_ALIGNED((unsigned long)(x), (a))
-#define IS_ALIGNED(x, a)		(((x) & ((typeof(x))(a) - 1)) == 0)
-
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
 #define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
 
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 0db192e4d3ab..8bdaff4ebf1b 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -3,7 +3,7 @@
 #ifndef _LINUX_PAGEMAP_H
 #define _LINUX_PAGEMAP_H
 
-#include <linux/kernel.h>
+#include <linux/align.h>
 
 /*
  * Copyright 1995 Linus Torvalds
-- 
2.39.2




  parent reply	other threads:[~2024-04-24  6:41 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-24  6:40 [PATCH master 00/23] treewide: fix bugs using DMA API Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 01/23] habv4: use DMA-capable memory for getting event from BootROM Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 02/23] dma: give inline dma_alloc a single external definition Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 03/23] dma: add definition for dma_zalloc Ahmad Fatoum
2024-04-24  6:40 ` Ahmad Fatoum [this message]
2024-04-24  6:40 ` [PATCH master 05/23] driver: move out struct device definition into its own header Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 06/23] dma: remove common.h include from asm/dma.h Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 07/23] RISC-V: dma: fix dma.h inclusion Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 08/23] sandbox: dma: drop unused driver.h include Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 09/23] dma: remove linux/kernel.h dependency from dma.h Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 10/23] include: linux/slab: fix possible overflow in kmalloc_array Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 11/23] include: linux/slab: use dma_alloc for kmalloc Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 12/23] include: linux/slab: retire krealloc Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 13/23] commands: mmc_extcsd: use DMA capable memory where needed Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 14/23] net: macb: use DMA-capable memory for receive buffer Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 15/23] firmware: qemu_fw_cfg: use bounce buffer for write Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 16/23] net: usb: asix: use dma_alloc for buffers in USB control messages Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 17/23] net: usb: smsc95xx: use DMA memory for usb_control_msg Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 18/23] usb: hub: use DMA memory in usb_get_port_status Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 19/23] usb: hub: use DMA-capable memory in usb_hub_configure Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 20/23] treewide: use new dma_zalloc instead of opencoding Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 21/23] usb: dwc2: host: fix mismatch between dma_map_single and unmap Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 22/23] net: bcmgenet: map DMA buffers with dma_map_single Ahmad Fatoum
2024-04-24  6:40 ` [PATCH master 23/23] dma: debug: add alignment check when mapping buffers Ahmad Fatoum
2024-04-25  7:39 ` [PATCH master 00/23] treewide: fix bugs using DMA API Sascha Hauer

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