Patch "drm/msm/dpu: make error messages at dpu_core_irq_register_callback() more sensible" has been added to the 6.8-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    drm/msm/dpu: make error messages at dpu_core_irq_register_callback() more sensible

to the 6.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-msm-dpu-make-error-messages-at-dpu_core_irq_regi.patch
and it can be found in the queue-6.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit bde3808a54c805165d7839d79b8d9fd5e67caa80
Author: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Date:   Sat Mar 30 05:53:22 2024 +0200

    drm/msm/dpu: make error messages at dpu_core_irq_register_callback() more sensible
    
    [ Upstream commit 8844f467d6a58dc915f241e81c46e0c126f8c070 ]
    
    There is little point in using %ps to print a value known to be NULL. On
    the other hand it makes sense to print the callback symbol in the
    'invalid IRQ' message. Correct those two error messages to make more
    sense.
    
    Fixes: 6893199183f8 ("drm/msm/dpu: stop using raw IRQ indices in the kernel output")
    Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
    Reviewed-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
    Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
    Patchwork: https://patchwork.freedesktop.org/patch/585565/
    Link: https://lore.kernel.org/r/20240330-dpu-irq-messages-v1-1-9ce782ae35f9@xxxxxxxxxx
    Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
index 946dd0135dffc..6a0a74832fb64 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
@@ -525,14 +525,14 @@ int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms,
 	int ret;
 
 	if (!irq_cb) {
-		DPU_ERROR("invalid IRQ=[%d, %d] irq_cb:%ps\n",
-			  DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), irq_cb);
+		DPU_ERROR("IRQ=[%d, %d] NULL callback\n",
+			  DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
 		return -EINVAL;
 	}
 
 	if (!dpu_core_irq_is_valid(irq_idx)) {
-		DPU_ERROR("invalid IRQ=[%d, %d]\n",
-			  DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
+		DPU_ERROR("invalid IRQ=[%d, %d] irq_cb:%ps\n",
+			  DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), irq_cb);
 		return -EINVAL;
 	}