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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-02-02 08:41:02 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-02-02 08:41:02 -0800
commit178cf7de6f1d3b95407f5a76af249fc924d42576 (patch)
tree4b3e5f3ef6dfa7866fb30811acdc60832a055269 /arch/x86/boot/compressed/misc.c
parent89c468263befb4617aaab36ae8c54ba04164c7b0 (diff)
parente36f014edff70fc02b3d3d79cead1d58f289332e (diff)
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Merge 3.19-rc7 into staging-next
We want those fixes in here for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/boot/compressed/misc.c')
-rw-r--r--arch/x86/boot/compressed/misc.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index dcc1c536cc21..a950864a64da 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -373,6 +373,8 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
unsigned long output_len,
unsigned long run_size)
{
+ unsigned char *output_orig = output;
+
real_mode = rmode;
sanitize_boot_params(real_mode);
@@ -421,7 +423,12 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
debug_putstr("\nDecompressing Linux... ");
decompress(input_data, input_len, NULL, NULL, output, NULL, error);
parse_elf(output);
- handle_relocations(output, output_len);
+ /*
+ * 32-bit always performs relocations. 64-bit relocations are only
+ * needed if kASLR has chosen a different load address.
+ */
+ if (!IS_ENABLED(CONFIG_X86_64) || output != output_orig)
+ handle_relocations(output, output_len);
debug_putstr("done.\nBooting the kernel.\n");
return output;
}