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-rw-r--r--arch/x86/boot/compressed/misc.c3
-rw-r--r--arch/x86/boot/header.S8
2 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index a0838ab..c14217c 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -116,8 +116,7 @@ void __putstr(const char *s)
}
}
- if (boot_params->screen_info.orig_video_mode == 0 &&
- lines == 0 && cols == 0)
+ if (lines == 0 || cols == 0)
return;
x = boot_params->screen_info.orig_x;
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 2ed8f0c..1bb08ec 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -520,8 +520,14 @@ pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
# the description in lib/decompressor_xxx.c for specific information.
#
# extra_bytes = (uncompressed_size >> 12) + 65536 + 128
+#
+# LZ4 is even worse: data that cannot be further compressed grows by 0.4%,
+# or one byte per 256 bytes. OTOH, we can safely get rid of the +128 as
+# the size-dependent part now grows so fast.
+#
+# extra_bytes = (uncompressed_size >> 8) + 65536
-#define ZO_z_extra_bytes ((ZO_z_output_len >> 12) + 65536 + 128)
+#define ZO_z_extra_bytes ((ZO_z_output_len >> 8) + 65536)
#if ZO_z_output_len > ZO_z_input_len
# define ZO_z_extract_offset (ZO_z_output_len + ZO_z_extra_bytes - \
ZO_z_input_len)
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