From: Dan Carpenter <dan.carpenter@linaro.org>
To: Umang Jain <umang.jain@ideasonboard.com>
Cc: linux-staging@lists.linux.dev,
linux-rpi-kernel@lists.infradead.org,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Stefan Wahren <stefan.wahren@i2se.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dan Carpenter <error27@gmail.com>,
Kieran Bingham <kieran.bingham@ideasonboard.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
"Ricardo B . Marliere" <ricardo@marliere.net>,
Sakari Ailus <sakari.ailus@linux.intel.com>
Subject: Re: [PATCH 1/1] staging: vc04_services: Use %p4cc format modifier to print FourCC codes
Date: Wed, 25 Oct 2023 10:10:08 +0300 [thread overview]
Message-ID: <bd7f3a75-598a-428e-85c3-8dd867043c1f@kadam.mountain> (raw)
In-Reply-To: <20231025060717.71895-2-umang.jain@ideasonboard.com>
On Wed, Oct 25, 2023 at 02:07:17AM -0400, Umang Jain wrote:
> Drop VCHIQ_FOURCC_AS_4CHARS macro in favour of %p4cc format
> modifier to print FourCC codes in the logs.
>
> vchiq_use_internal() and vchiq_release_internal() uses entity
> character-array to store a transient string that contains
> a FourCC code. Increase the length of entity array(to 64 bytes)
> since %p4cc requires more bytes to hold the output characters.
>
> Suggested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
> ---
> .../interface/vchiq_arm/vchiq_arm.c | 20 +++++-----
> .../interface/vchiq_arm/vchiq_core.c | 40 +++++++++----------
> .../interface/vchiq_arm/vchiq_core.h | 6 ---
> .../interface/vchiq_arm/vchiq_dev.c | 7 ++--
> 4 files changed, 33 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> index fc6d33ec5e95..de6a24304a4d 100644
> --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> @@ -1441,7 +1441,7 @@ vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service,
> {
> struct vchiq_arm_state *arm_state = vchiq_platform_get_arm_state(state);
> int ret = 0;
> - char entity[16];
> + char entity[64];
> int *entity_uc;
> int local_uc;
>
> @@ -1454,8 +1454,8 @@ vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service,
> sprintf(entity, "VCHIQ: ");
> entity_uc = &arm_state->peer_use_count;
> } else if (service) {
> - sprintf(entity, "%c%c%c%c:%03d",
> - VCHIQ_FOURCC_AS_4CHARS(service->base.fourcc),
> + sprintf(entity, "%p4cc:%03d",
Not related to your patch but these sprintfs() make me very
uncomfortable.
KTODO: change sprintf() to snprintf() in staging/vc04_services/
regards,
dan carpenter
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next prev parent reply other threads:[~2023-10-25 7:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-25 6:07 [PATCH 0/1] staging: vc04_services: Use %p4cc to print fourcc Umang Jain
2023-10-25 6:07 ` [PATCH 1/1] staging: vc04_services: Use %p4cc format modifier to print FourCC codes Umang Jain
2023-10-25 7:10 ` Dan Carpenter [this message]
2023-10-25 9:28 ` Sakari Ailus
2023-10-25 9:34 ` Umang Jain
2023-10-25 9:46 ` Greg Kroah-Hartman
2023-10-25 11:12 ` Ricardo B. Marliere
2023-10-25 11:29 ` [PATCH 0/1] staging: vc04_services: Use %p4cc to print fourcc Stefan Wahren
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