diff options
Diffstat (limited to 'extra/efivar/patches/efivar-fix-format_guid.patch')
| -rw-r--r-- | extra/efivar/patches/efivar-fix-format_guid.patch | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/extra/efivar/patches/efivar-fix-format_guid.patch b/extra/efivar/patches/efivar-fix-format_guid.patch deleted file mode 100644 index f40942f..0000000 --- a/extra/efivar/patches/efivar-fix-format_guid.patch +++ /dev/null @@ -1,56 +0,0 @@ -From b98ba8921010d03f46704a476c69861515deb1ca Mon Sep 17 00:00:00 2001 -From: Peter Jones <pjones@redhat.com> -Date: Mon, 7 Jan 2019 10:30:59 -0500 -Subject: [PATCH] dp.h: make format_guid() handle misaligned guid pointers - safely. - -GCC 9 adds -Werror=address-of-packed-member, which causes us to see the -build error reported at - https://bugzilla.opensuse.org/show_bug.cgi?id=1120862 . - -That bug report shows us the following: - -In file included from dp.c:26: -dp.h: In function 'format_vendor_helper': -dp.h:120:37: error: taking address of packed member of 'struct <anonymous>' may result in an unaligned pointer value [-Werror=address-of-packed-member] - 120 | format_guid(buf, size, off, label, &dp->hw_vendor.vendor_guid); - | ^~~~~~~~~~~~~~~~~~~~~~~~~~ -dp.h:74:25: note: in definition of macro 'format_guid' - 74 | _rc = efi_guid_to_str(guid, &_guidstr); \ - | ^~~~ -cc1: all warnings being treated as errors - -This patch makes format_guid() use a local variable as a bounce buffer -in the case that the guid we're passed is aligned as chaotic neutral. - -Note that this only fixes this instance and there may be others that bz -didn't show because it exited too soon, and I don't have a gcc 9 build -in front of me right now. - -Signed-off-by: Peter Jones <pjones@redhat.com> ---- - src/dp.h | 11 +++++++++-- - 1 file changed, 9 insertions(+), 2 deletions(-) - -diff --git a/src/dp.h b/src/dp.h -index aa4e390..20cb608 100644 ---- a/src/dp.h -+++ b/src/dp.h -@@ -70,8 +70,15 @@ - #define format_guid(buf, size, off, dp_type, guid) ({ \ - int _rc; \ - char *_guidstr = NULL; \ -- \ -- _rc = efi_guid_to_str(guid, &_guidstr); \ -+ efi_guid_t _guid; \ -+ const efi_guid_t * const _guid_p = \ -+ likely(__alignof__(guid) == sizeof(guid)) \ -+ ? guid \ -+ : &_guid; \ -+ \ -+ if (unlikely(__alignof__(guid) == sizeof(guid))) \ -+ memmove(&_guid, guid, sizeof(_guid)); \ -+ _rc = efi_guid_to_str(_guid_p, &_guidstr); \ - if (_rc < 0) { \ - efi_error("could not build %s GUID DP string", \ - dp_type); \ |