[PATCH AUTOSEL 6.1 19/52] media: sta2x11: fix irq handler cast

Sasha Levin
2024-03-29T12:46:41Z

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 3de49ae81c3a0f83a554ecbce4c08e019f30168e ]

clang-16 warns about casting incompatible function pointers:

drivers/media/pci/sta2x11/sta2x11_vip.c:1057:6: error: cast from 'irqreturn_t (*)(int, struct sta2x11_vip *)' (aka 'enum irqreturn (*)(int, struct sta2x11_vip *)') to 'irq_handler_t' (aka 'enum irqreturn (*)(int, void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]

Change the prototype of the irq handler to the regular version with a
local variable to adjust the argument type.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: update argument documentation]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/sta2x11/sta2x11_vip.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/media/pci/sta2x11/sta2x11_vip.c b/drivers/media/pci/sta2x11/sta2x11_vip.c
index 8535e49a4c4f9..1f7ab56de4a00 100644
--- a/drivers/media/pci/sta2x11/sta2x11_vip.c
+++ b/drivers/media/pci/sta2x11/sta2x11_vip.c
@@ -756,7 +756,7 @@ static const struct video_device video_dev_template = {
/**
* vip_irq - interrupt routine
* @irq: Number of interrupt ( not used, correct number is assumed )
- * @vip: local data structure containing all information
+ * @data: local data structure containing all information
*
* check for both frame interrupts set ( top and bottom ).
* check FIFO overflow, but limit number of log messages after open.
@@ -766,8 +766,9 @@ static const struct video_device video_dev_template = {
*
* IRQ_HANDLED, interrupt done.
*/
-static irqreturn_t vip_irq(int irq, struct sta2x11_vip *vip)
+static irqreturn_t vip_irq(int irq, void *data)
{
+ struct sta2x11_vip *vip = data;
unsigned int status;

status = reg_read(vip, DVP_ITS);
@@ -1049,9 +1050,7 @@ static int sta2x11_vip_init_one(struct pci_dev *pdev,

spin_lock_init(&vip->slock);

- ret = request_irq(pdev->irq,
- (irq_handler_t) vip_irq,
- IRQF_SHARED, KBUILD_MODNAME, vip);
+ ret = request_irq(pdev->irq, vip_irq, IRQF_SHARED, KBUILD_MODNAME, vip);
if (ret) {
dev_err(&pdev->dev, "request_irq failed\n");
ret = -ENODEV;
--
2.43.0