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lib: crc32: mark static variable as __efi_runtime_data

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In commit 483dbab9f9 ("lib: crc32: mark function crc32() as
__efi_runtime") one local static variable was missed. It did not end up in
the __efi_runtime_data section as it should.

If CONFIG_DYNAMIC_CRC_TABLE=y a data abort execption may occur when the
UEFI payload calls the SetVirtualAddressMap() runtime service.

Reported-by: Dominik Adamski <dominik.adamski@northerntech.community>
Fixes: 483dbab9f9 ("lib: crc32: mark function crc32() as __efi_runtime")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-12-18 18:06:14 +01:00 committed by Alexander Graf
parent 05aceb2b1c
commit 5bdb0a7cad
1 changed files with 2 additions and 1 deletions
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3
lib/crc32.c
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@ -65,7 +65,8 @@ static void __efi_runtime make_crc_table(void)
int n, k;
uLong poly; /* polynomial exclusive-or pattern */
/* terms of polynomial defining this crc (except x^32): */
static const Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
static Byte __efi_runtime_data p[] = {
0, 1, 2, 4, 5, 7, 8, 10, 11, 12, 16, 22, 23, 26};
/* make exclusive-or pattern from polynomial (0xedb88320L) */
poly = 0L;