Public bug reported:
== SRU Justification ==
The 4.4.y stable backport c9fadf27006b for upstream commit 1bd6a1c4b80a
("powerpc/fadump: handle crash memory ranges array index overflow"),
cherry-picked for Xenial as part of bug 1792419, introduces a build failure on
ppc by returning a int in a void function. In 4.4.y register_fadump() returns
void because 98b8cd7f7564 ("powerpc/fadump: Return error when fadump
registration fails") hasn't been backported for this stable release.
== Fix ==
98b8cd7f7564 ("powerpc/fadump: Return error when fadump registration fails")
== Regression Potential ==
Low. The patch only handles the error return by some function and adds an
additional error message. Limited to powerpc.
== Test Case ==
Compile the kernel for powerpc (tested with ppc64el).
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: In Progress
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => Confirmed
** Changed in: linux (Ubuntu Xenial)
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/1795662
Title:
Linux 4.4.155 stable release build is broken on ppc64
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