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Message-ID: <4444008.DmhAgm3J77@wuerfel>
Date: Tue, 17 Nov 2015 10:22:06 +0100
From: Arnd Bergmann <arnd@...db.de>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: "David S. Miller" <davem@...emloft.net>,
linux-crypto@...r.kernel.org, Leilei Zhao <leilei.zhao@...el.com>,
Nicolas Ferre <nicolas.ferre@...el.com>,
Nicolas Royer <nicolas@...rea.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] crypto: atmel: fix 64-bit warnings
The atmel AES driver assumes that 'int' and 'size_t' are the same
type in multiple locations, which the compiler warns about when
building it for 64-bit systems:
In file included from ../drivers/crypto/atmel-aes.c:17:0:
drivers/crypto/atmel-aes.c: In function 'atmel_aes_sg_copy':
include/linux/kernel.h:724:17: warning: comparison of distinct pointer types lacks a cast
drivers/crypto/atmel-aes.c:448:11: note: in expansion of macro 'min'
drivers/crypto/atmel-aes.c: In function 'atmel_aes_crypt_dma_stop':
include/linux/kern_levels.h:4:18: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'size_t {aka long unsigned int}' [-Wformat=]
This changes the format strings to use the %z modifier when printing
a size_t, and makes sure that we use the correct size_t type where
needed. In case of sg_dma_len(), the type of the result depends
on CONFIG_NEED_SG_DMA_LENGTH, so we have to use min_t to get it to
work in all configurations.
Signed-off-by: Arnd Bergmann <arnd@...db.de>
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index fb16d812c8f5..bfb1f799bf56 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -184,7 +184,7 @@ static int atmel_aes_sg_length(struct ablkcipher_request *req,
static int atmel_aes_sg_copy(struct scatterlist **sg, size_t *offset,
void *buf, size_t buflen, size_t total, int out)
{
- unsigned int count, off = 0;
+ size_t count, off = 0;
while (buflen && total) {
count = min((*sg)->length - *offset, total);
@@ -444,8 +444,8 @@ static int atmel_aes_crypt_dma_start(struct atmel_aes_dev *dd)
if (fast) {
- count = min(dd->total, sg_dma_len(dd->in_sg));
- count = min(count, sg_dma_len(dd->out_sg));
+ count = min_t(size_t, dd->total, sg_dma_len(dd->in_sg));
+ count = min_t(size_t, count, sg_dma_len(dd->out_sg));
err = dma_map_sg(dd->dev, dd->in_sg, 1, DMA_TO_DEVICE);
if (!err) {
@@ -639,7 +639,7 @@ static int atmel_aes_crypt_dma_stop(struct atmel_aes_dev *dd)
dd->buf_out, dd->buflen, dd->dma_size, 1);
if (count != dd->dma_size) {
err = -EINVAL;
- pr_err("not all data converted: %u\n", count);
+ pr_err("not all data converted: %zu\n", count);
}
}
}
@@ -666,7 +666,7 @@ static int atmel_aes_buff_init(struct atmel_aes_dev *dd)
dd->dma_addr_in = dma_map_single(dd->dev, dd->buf_in,
dd->buflen, DMA_TO_DEVICE);
if (dma_mapping_error(dd->dev, dd->dma_addr_in)) {
- dev_err(dd->dev, "dma %d bytes error\n", dd->buflen);
+ dev_err(dd->dev, "dma %zd bytes error\n", dd->buflen);
err = -EINVAL;
goto err_map_in;
}
@@ -674,7 +674,7 @@ static int atmel_aes_buff_init(struct atmel_aes_dev *dd)
dd->dma_addr_out = dma_map_single(dd->dev, dd->buf_out,
dd->buflen, DMA_FROM_DEVICE);
if (dma_mapping_error(dd->dev, dd->dma_addr_out)) {
- dev_err(dd->dev, "dma %d bytes error\n", dd->buflen);
+ dev_err(dd->dev, "dma %zd bytes error\n", dd->buflen);
err = -EINVAL;
goto err_map_out;
}
--
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