The patch titled Subject: gcov: add support for checksum field has been added to the -mm mm-hotfixes-unstable branch. Its filename is gcov-add-support-for-checksum-field.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: Rickard x Andersson rickaran@axis.com Subject: gcov: add support for checksum field Date: Tue, 20 Dec 2022 11:23:18 +0100

In GCC version 12.1 a checksum field was added.

This patch fixes a kernel crash occurring during boot when using gcov-kernel with GCC version 12.2. The crash occurred on a system running on i.MX6SX.

Link: https://lkml.kernel.org/r/20221220102318.3418501-1-rickaran@axis.com Fixes: 977ef30a7d88 ("gcov: support GCC 12.1 and newer compilers") Signed-off-by: Rickard x Andersson rickaran@axis.com Reviewed-by: Peter Oberparleiter oberpar@linux.ibm.com Tested-by: Peter Oberparleiter oberpar@linux.ibm.com Reviewed-By: Martin Liska mliska@suse.cz Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

kernel/gcov/gcc_4_7.c | 5 +++++ 1 file changed, 5 insertions(+)

--- a/kernel/gcov/gcc_4_7.c~gcov-add-support-for-checksum-field +++ a/kernel/gcov/gcc_4_7.c @@ -82,6 +82,7 @@ struct gcov_fn_info { * @version: gcov version magic indicating the gcc version used for compilation * @next: list head for a singly-linked list * @stamp: uniquifying time stamp + * @checksum: unique object checksum * @filename: name of the associated gcov data file * @merge: merge functions (null for unused counter type) * @n_functions: number of instrumented functions @@ -94,6 +95,10 @@ struct gcov_info { unsigned int version; struct gcov_info *next; unsigned int stamp; + /* Since GCC 12.1 a checksum field is added. */ +#if (__GNUC__ >= 12) + unsigned int checksum; +#endif const char *filename; void (*merge[GCOV_COUNTERS])(gcov_type *, unsigned int); unsigned int n_functions; _

Patches currently in -mm which might be from rickaran@axis.com are

gcov-add-support-for-checksum-field.patch