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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 13/23] commands: mmc_extcsd: use DMA capable memory where needed
Date: Wed, 24 Apr 2024 08:40:48 +0200	[thread overview]
Message-ID: <20240424064058.3608016-14-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20240424064058.3608016-1-a.fatoum@pengutronix.de>

mci_send_ext_csd may do DMA directly to the passed in buffer. Therefore,
be sure to allocate the buffer with suitable alignment.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 commands/mmc_extcsd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/commands/mmc_extcsd.c b/commands/mmc_extcsd.c
index f67c48404a54..993a6dd12b23 100644
--- a/commands/mmc_extcsd.c
+++ b/commands/mmc_extcsd.c
@@ -2418,7 +2418,7 @@ static int do_mmc_extcsd(int argc, char *argv[])
 		retval = -ENOENT;
 		goto error;
 	}
-	dst = xmalloc(EXT_CSD_BLOCKSIZE);
+	dst = dma_alloc(EXT_CSD_BLOCKSIZE);
 
 	retval = mci_send_ext_csd(mci, dst);
 	if (retval != 0)
@@ -2473,7 +2473,7 @@ static int do_mmc_extcsd(int argc, char *argv[])
 			print_register_readable(dst, index);
 
 error_with_mem:
-	free(dst);
+	dma_free(dst);
 error:
 	return retval;
 }
-- 
2.39.2




  parent reply	other threads:[~2024-04-24  7:09 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 ` [PATCH master 04/23] include: linux/kernel.h: factor out alignment macros Ahmad Fatoum
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 ` Ahmad Fatoum [this message]
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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