From: "Marek Behún" <kabel@kernel.org>
To: "Gregory CLEMENT" <gregory.clement@bootlin.com>,
"Andrew Lunn" <andrew@lunn.ch>, "Arnd Bergmann" <arnd@arndb.de>,
soc@kernel.org, arm@kernel.org,
"Andy Shevchenko" <andy@kernel.org>,
"Hans de Goede" <hdegoede@redhat.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Cc: "Marek Behún" <kabel@kernel.org>
Subject: [PATCH 03/19] firmware: turris-mox-rwtm: Use PAGE_SIZE instead of hardcoded 4096
Date: Wed, 12 Jun 2024 15:54:27 +0200 [thread overview]
Message-ID: <20240612135443.30239-4-kabel@kernel.org> (raw)
In-Reply-To: <20240612135443.30239-1-kabel@kernel.org>
The 4096 bytes limit in mox_hwrng_read() is due to the DMA buffer being
allocated to one PAGE_SIZE bytes. The PAGE_SIZE macro is used when
allocating the buffer, use it in mox_hwrng_read() as well.
Signed-off-by: Marek Behún <kabel@kernel.org>
---
drivers/firmware/turris-mox-rwtm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/firmware/turris-mox-rwtm.c b/drivers/firmware/turris-mox-rwtm.c
index 3f4758e03c81..5acdde1bb6d9 100644
--- a/drivers/firmware/turris-mox-rwtm.c
+++ b/drivers/firmware/turris-mox-rwtm.c
@@ -287,8 +287,8 @@ static int mox_hwrng_read(struct hwrng *rng, void *data, size_t max, bool wait)
struct armada_37xx_rwtm_tx_msg msg;
int ret;
- if (max > 4096)
- max = 4096;
+ if (max > PAGE_SIZE)
+ max = PAGE_SIZE;
msg.command = MBOX_CMD_GET_RANDOM;
msg.args[0] = 1;
--
2.44.2
next prev parent reply other threads:[~2024-06-12 13:54 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-12 13:54 [PATCH 00/19] Updates for turris-mox-rwtm driver Marek Behún
2024-06-12 13:54 ` [PATCH 01/19] firmware: turris-mox-rwtm: Do not complete if there are no waiters Marek Behún
2024-06-12 13:54 ` [PATCH 02/19] firmware: turris-mox-rwtm: Fix checking return value of wait_for_completion_timeout() Marek Behún
2024-06-13 8:06 ` Ilpo Järvinen
2024-06-12 13:54 ` Marek Behún [this message]
2024-06-13 8:01 ` [PATCH 03/19] firmware: turris-mox-rwtm: Use PAGE_SIZE instead of hardcoded 4096 Ilpo Järvinen
2024-06-13 9:54 ` Marek Behún
2024-06-12 13:54 ` [PATCH 04/19] firmware: turris-mox-rwtm: Use ETH_ALEN instead of hardcoded 6 Marek Behún
2024-06-13 8:02 ` Ilpo Järvinen
2024-06-12 13:54 ` [PATCH 05/19] firmware: turris-mox-rwtm: Use the boolean type where appropriate Marek Behún
2024-06-12 13:54 ` [PATCH 06/19] firmware: turris-mox-rwtm: Hide signature related constants behind macros Marek Behún
2024-06-12 13:54 ` [PATCH 07/19] firmware: turris-mox-rwtm: Fix driver includes Marek Behún
2024-06-12 13:54 ` [PATCH 08/19] firmware: turris-mox-rwtm: Use kobj_type's default_groups member for automatic sysfs files creation Marek Behún
2024-06-13 8:14 ` Ilpo Järvinen
2024-06-12 13:54 ` [PATCH 09/19] firmware: turris-mox-rwtm: Simplify debugfs code Marek Behún
2024-06-12 13:54 ` [PATCH 10/19] firmware: turris-mox-rwtm: Simplify driver kobject code Marek Behún
2024-06-13 8:31 ` Ilpo Järvinen
2024-06-13 9:55 ` Marek Behún
2024-06-13 10:19 ` Ilpo Järvinen
2024-06-13 13:31 ` Marek Behún
2024-06-13 13:37 ` Ilpo Järvinen
2024-06-13 15:39 ` Marek Behún
2024-06-13 15:44 ` Ilpo Järvinen
2024-06-12 13:54 ` [PATCH 11/19] firmware: turris-mox-rwtm: Return true error code if kobject_add() fails Marek Behún
2024-06-12 13:54 ` [PATCH 12/19] firmware: turris-mox-rwtm: Convert rest to devm_* and get rid of driver .remove() Marek Behún
2024-06-12 13:54 ` [PATCH 13/19] firmware: turris-mox-rwtm: Use dev_err_probe() where possible Marek Behún
2024-06-12 13:54 ` [PATCH 14/19] firmware: turris-mox-rwtm: Rearrange probe calls Marek Behún
2024-06-12 13:54 ` [PATCH 15/19] firmware: turris-mox-rwtm: Drop redundant device pointer Marek Behún
2024-06-12 13:54 ` [PATCH 16/19] firmware: turris-mox-rwtm: Use devm_mutex_init() instead of mutex_init() Marek Behún
2024-06-12 13:54 ` [PATCH 17/19] firmware: turris-mox-rwtm: Use container_of() instead of hwrng .priv member Marek Behún
2024-06-12 13:54 ` [PATCH 18/19] firmware: turris-mox-rwtm: Deduplicate command execution code Marek Behún
2024-06-12 13:54 ` [PATCH 19/19] firmware: turris-mox-rwtm: Use EOPNOTSUPP instead of ENOSYS Marek Behún
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