ACK: [SRU][P:linux, N:linux-azure-nvidia-6.14][PATCH v2 0/3] Kernel fails to build when coresight is enabled

[Manuel Diewald]

On Wed, Sep 10, 2025 at 04:02:08PM -0500, John Cabaj wrote:
> BugLink: https://bugs.launchpad.net/bugs/2122527
> 
> SRU Justification
> 
> [Impact]
> 
> * Inclusion of upstream f6028eeeb5e4: "coresight: core: Disable helpers for devices that fail to enable" added two calls to coresight_disable_helpers() with an additional path parameter, which is not available in the current function call, which only accepts coresight_disable_helpers(struct coresight_device *csdev). This causes the kernel to fail to build when coresight is enabled.
> * Additionally, upstream 53b9e2659719: "coresight: holding cscfg_csdev_lock while removing cscfg from csdev" caused build failures with a spinlock type change.
> 
> [Fix]
> 
> * Clean cherry-pick of upstream 3c03c49b2fa5: "Coresight: Introduce a new struct coresight_path"
> * Backport of upstream 080ee83cc361: "Coresight: Change functions to accept the coresight_path"
> * Clean cherry-pick of upstream 26f060c106f6: "coresight: change coresight_device lock type to raw_spinlock_t"
> 
> [Test Plan]
> 
> * Compile tested
> 
> [Regression potential]
> 
> * Changes are localized to coresight. Possible regressions could result in unexpected behavior of coresight module.
> 
> Jie Gan (2):
>   Coresight: Introduce a new struct coresight_path
>   Coresight: Change functions to accept the coresight_path
> 
> Yeoreum Yun (1):
>   coresight: change coresight_device lock type to raw_spinlock_t
> 
>  drivers/hwtracing/coresight/coresight-core.c  | 51 ++++++++++---------
>  .../hwtracing/coresight/coresight-etm-perf.c  | 14 ++---
>  .../hwtracing/coresight/coresight-etm-perf.h  |  2 +-
>  drivers/hwtracing/coresight/coresight-priv.h  | 12 ++---
>  .../hwtracing/coresight/coresight-syscfg.c    | 26 +++++-----
>  drivers/hwtracing/coresight/coresight-sysfs.c |  6 +--
>  include/linux/coresight.h                     | 12 ++++-
>  7 files changed, 67 insertions(+), 56 deletions(-)
> 
> -- 
> 2.43.0
> 
> 
> -- 
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Acked-by: Manuel Diewald <manuel.diewald at canonical.com>

-- 
 Manuel
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