Re: [PATCH] mailbox: mailbox-test: avoid reading iomem twice

[Lee Jones]

On Wed, 04 Nov 2015, jaswinder.si...@linaro.org wrote:

> From: Jassi Brar 
> 
> Don't pass mmio region as source to print_hex_dump() and then
> again to memcpy_fromio(). Do it once and give print_hex_dump()
> the buffer we just read the data in.
> 
> Signed-off-by: Jassi Brar 
> ---
>  drivers/mailbox/mailbox-test.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)

Nice fix Jassi.

Acked-by: Lee Jones 

> diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
> index f82dc89..684ae17 100644
> --- a/drivers/mailbox/mailbox-test.c
> +++ b/drivers/mailbox/mailbox-test.c
> @@ -221,11 +221,10 @@ static void mbox_test_receive_message(struct 
> mbox_client *client, void *message)
>  
>   spin_lock_irqsave(>lock, flags);
>   if (tdev->mmio) {
> + memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
>   print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
>  DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
> -__io_virt(tdev->mmio), MBOX_MAX_MSG_LEN, true);
> - memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
> -
> +tdev->rx_buffer, MBOX_MAX_MSG_LEN, true);
>   } else if (message) {
>   print_hex_dump(KERN_INFO, "Client: Received [API]: ",
>  DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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Re: [PATCH] mailbox: mailbox-test: avoid reading iomem twice

[Lee Jones]

On Wed, 04 Nov 2015, jaswinder.si...@linaro.org wrote:

> From: Jassi Brar 
> 
> Don't pass mmio region as source to print_hex_dump() and then
> again to memcpy_fromio(). Do it once and give print_hex_dump()
> the buffer we just read the data in.
> 
> Signed-off-by: Jassi Brar 
> ---
>  drivers/mailbox/mailbox-test.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)

Nice fix Jassi.

Acked-by: Lee Jones 

> diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
> index f82dc89..684ae17 100644
> --- a/drivers/mailbox/mailbox-test.c
> +++ b/drivers/mailbox/mailbox-test.c
> @@ -221,11 +221,10 @@ static void mbox_test_receive_message(struct 
> mbox_client *client, void *message)
>  
>   spin_lock_irqsave(>lock, flags);
>   if (tdev->mmio) {
> + memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
>   print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
>  DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
> -__io_virt(tdev->mmio), MBOX_MAX_MSG_LEN, true);
> - memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
> -
> +tdev->rx_buffer, MBOX_MAX_MSG_LEN, true);
>   } else if (message) {
>   print_hex_dump(KERN_INFO, "Client: Received [API]: ",
>  DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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Please read the FAQ at  http://www.tux.org/lkml/

[PATCH] mailbox: mailbox-test: avoid reading iomem twice

[jaswinder . singh]

From: Jassi Brar 

Don't pass mmio region as source to print_hex_dump() and then
again to memcpy_fromio(). Do it once and give print_hex_dump()
the buffer we just read the data in.

Signed-off-by: Jassi Brar 
---
 drivers/mailbox/mailbox-test.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
index f82dc89..684ae17 100644
--- a/drivers/mailbox/mailbox-test.c
+++ b/drivers/mailbox/mailbox-test.c
@@ -221,11 +221,10 @@ static void mbox_test_receive_message(struct mbox_client 
*client, void *message)
 
spin_lock_irqsave(>lock, flags);
if (tdev->mmio) {
+   memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
   DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
-  __io_virt(tdev->mmio), MBOX_MAX_MSG_LEN, true);
-   memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
-
+  tdev->rx_buffer, MBOX_MAX_MSG_LEN, true);
} else if (message) {
print_hex_dump(KERN_INFO, "Client: Received [API]: ",
   DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
-- 
1.9.1

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Please read the FAQ at  http://www.tux.org/lkml/

[PATCH] mailbox: mailbox-test: avoid reading iomem twice

[jaswinder . singh]

From: Jassi Brar 

Don't pass mmio region as source to print_hex_dump() and then
again to memcpy_fromio(). Do it once and give print_hex_dump()
the buffer we just read the data in.

Signed-off-by: Jassi Brar 
---
 drivers/mailbox/mailbox-test.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
index f82dc89..684ae17 100644
--- a/drivers/mailbox/mailbox-test.c
+++ b/drivers/mailbox/mailbox-test.c
@@ -221,11 +221,10 @@ static void mbox_test_receive_message(struct mbox_client 
*client, void *message)
 
spin_lock_irqsave(>lock, flags);
if (tdev->mmio) {
+   memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
   DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
-  __io_virt(tdev->mmio), MBOX_MAX_MSG_LEN, true);
-   memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
-
+  tdev->rx_buffer, MBOX_MAX_MSG_LEN, true);
} else if (message) {
print_hex_dump(KERN_INFO, "Client: Received [API]: ",
   DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
-- 
1.9.1

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Please read the FAQ at  http://www.tux.org/lkml/