Thread (10 messages) 10 messages, 3 authors, 2022-11-18

Re: [PATCH v2 1/3] Revert "staging: mmal-vchiq: Avoid use of bool in structures"

From: Kieran Bingham <kieran.bingham@ideasonboard.com>
Date: 2022-11-18 10:21:16
Also in: linux-staging, lkml

Quoting Umang Jain (2022-11-18 08:42:42)
This reverts commit 640e77466e69d9c28de227bc76881f5501f532ca.

In commit 7967656ffbfa ("coding-style: Clarify the expectations around
bool") the check to dis-allow bool structure members was removed from
checkpatch.pl. It promotes bool structure members to store boolean
values. This enhances code readability.

Signed-off-by: Umang Jain <redacted>
Thanks,

That's a more direct revert of 640e77466e69 ("staging: mmal-vchiq: Avoid
use of bool in structures") indeed.

I see Stefan was concerned about clarifying that this won't affect
firmware or userspace, it may still be good to hear from Dave to
confirm, but my understanding of 640e77466e69, means I believe this is
safe. I don't expect this structure to be used as any kind of ABI to
firmware or userspace.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

quoted hunk ↗ jump to hunk
---
 .../staging/vc04_services/vchiq-mmal/mmal-vchiq.c    | 12 ++++++------
 .../staging/vc04_services/vchiq-mmal/mmal-vchiq.h    |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index cb921c94996a..4abb6178cb9f 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -863,9 +863,9 @@ static int port_info_get(struct vchiq_mmal_instance *instance,
                goto release_msg;
 
        if (rmsg->u.port_info_get_reply.port.is_enabled == 0)
-               port->enabled = 0;
+               port->enabled = false;
        else
-               port->enabled = 1;
+               port->enabled = true;
 
        /* copy the values out of the message */
        port->handle = rmsg->u.port_info_get_reply.port_handle;
@@ -1304,7 +1304,7 @@ static int port_disable(struct vchiq_mmal_instance *instance,
        if (!port->enabled)
                return 0;
 
-       port->enabled = 0;
+       port->enabled = false;
 
        ret = port_action_port(instance, port,
                               MMAL_MSG_PORT_ACTION_TYPE_DISABLE);
@@ -1359,7 +1359,7 @@ static int port_enable(struct vchiq_mmal_instance *instance,
        if (ret)
                goto done;
 
-       port->enabled = 1;
+       port->enabled = true;
 
        if (port->buffer_cb) {
                /* send buffer headers to videocore */
@@ -1531,7 +1531,7 @@ int vchiq_mmal_port_connect_tunnel(struct vchiq_mmal_instance *instance,
                        pr_err("failed disconnecting src port\n");
                        goto release_unlock;
                }
-               src->connected->enabled = 0;
+               src->connected->enabled = false;
                src->connected = NULL;
        }
 
@@ -1799,7 +1799,7 @@ int vchiq_mmal_component_disable(struct vchiq_mmal_instance *instance,
 
        ret = disable_component(instance, component);
        if (ret == 0)
-               component->enabled = 0;
+               component->enabled = false;
 
        mutex_unlock(&instance->vchiq_mutex);
 
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
index 6006e29232b3..6d984cf5a83a 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
@@ -48,7 +48,7 @@ typedef void (*vchiq_mmal_buffer_cb)(
                int status, struct mmal_buffer *buffer);
 
 struct vchiq_mmal_port {
-       u32 enabled:1;
+       bool enabled;
        u32 handle;
        u32 type; /* port type, cached to use on port info set */
        u32 index; /* port index, cached to use on port info set */
@@ -83,7 +83,7 @@ struct vchiq_mmal_port {
 
 struct vchiq_mmal_component {
        u32 in_use:1;
-       u32 enabled:1;
+       bool enabled;
        u32 handle;  /* VideoCore handle for component */
        u32 inputs;  /* Number of input ports */
        u32 outputs; /* Number of output ports */
-- 
2.38.1
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