Re: [PATCH 5.4 5/6] kbuild: add $(CLANG_FLAGS) to KBUILD_CPPFLAGS

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

Summary of potential issues:
ℹ️ This is part 5/6 of a series
⚠️ Found follow-up fixes in mainline

The upstream commit SHA1 provided is correct: feb843a469fb0ab00d2d23cfb9bcc379791011bb

WARNING: Author mismatch between patch and upstream commit:
Backport author: Nathan Chancellor <nathan@kernel.org>
Commit author: Masahiro Yamada <masahiroy@kernel.org>

Status in newer kernel trees:
6.15.y | Present (exact SHA1)
6.12.y | Present (exact SHA1)
6.6.y | Present (exact SHA1)
6.1.y | Not found
5.15.y | Not found
5.10.y | Not found

Found fixes commits:
02e9a22ceef0 kbuild: hdrcheck: fix cross build with clang
1b71c2fb04e7 kbuild: userprogs: fix bitsize and target detection on clang
43fc0a99906e kbuild: Add KBUILD_CPPFLAGS to as-option invocation

Note: The patch differs from the upstream commit:
---
1:  feb843a469fb < -:  ------------ kbuild: add $(CLANG_FLAGS) to KBUILD_CPPFLAGS
-:  ------------ > 1:  69d313b2b765 kbuild: add $(CLANG_FLAGS) to KBUILD_CPPFLAGS

---

NOTE: These results are for this patch alone. Full series testing will be
performed when all parts are received.

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| 5.4                       | Success     | Success    |