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* [PATCH 1/3] lib: Add module support to crc32 tests
@ 2017-01-03 19:04 Geert Uytterhoeven
  2017-01-03 19:04 ` [PATCH 2/3] lib: Add module support to glob tests Geert Uytterhoeven
  2017-01-03 19:04 ` [PATCH 3/3] lib: Add module support to atomic64 tests Geert Uytterhoeven
  0 siblings, 2 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2017-01-03 19:04 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Matt Domsch, Luca Barbieri, George Spelvin, linux-kernel,
	Geert Uytterhoeven

Extract the crc32 test code into its own source file, to allow to
compile it either to a loadable module, or builtin into the kernel.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 lib/Kconfig                  |   3 +-
 lib/Makefile                 |   1 +
 lib/crc32.c                  | 824 -------------------------------------------
 lib/{crc32.c => crc32test.c} | 320 +----------------
 4 files changed, 7 insertions(+), 1141 deletions(-)
 copy lib/{crc32.c => crc32test.c} (82%)

diff --git a/lib/Kconfig b/lib/Kconfig
index 260a80e313b9022a..0095b828f2384691 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -103,8 +103,7 @@ config CRC32
 	  functions require M here.
 
 config CRC32_SELFTEST
-	bool "CRC32 perform self test on init"
-	default n
+	tristate "CRC32 perform self test on init"
 	depends on CRC32
 	help
 	  This option enables the CRC32 library functions to perform a
diff --git a/lib/Makefile b/lib/Makefile
index bc4073a8cd08da83..ef723f8d3c1dd9d8 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -90,6 +90,7 @@ obj-$(CONFIG_CRC16)	+= crc16.o
 obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
 obj-$(CONFIG_CRC_ITU_T)	+= crc-itu-t.o
 obj-$(CONFIG_CRC32)	+= crc32.o
+obj-$(CONFIG_CRC32_SELFTEST)	+= crc32test.o
 obj-$(CONFIG_CRC7)	+= crc7.o
 obj-$(CONFIG_LIBCRC32C)	+= libcrc32c.o
 obj-$(CONFIG_CRC8)	+= crc8.o
diff --git a/lib/crc32.c b/lib/crc32.c
index 7fbd1a112b9d2474..6ddc92bc1460936f 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -340,827 +340,3 @@ u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
 }
 #endif
 EXPORT_SYMBOL(crc32_be);
-
-#ifdef CONFIG_CRC32_SELFTEST
-
-/* 4096 random bytes */
-static u8 const __aligned(8) test_buf[] __initconst =
-{
-	0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
-	0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
-	0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
-	0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
-	0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
-	0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
-	0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
-	0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
-	0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
-	0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
-	0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
-	0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
-	0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
-	0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
-	0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
-	0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
-	0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
-	0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
-	0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
-	0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
-	0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
-	0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
-	0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
-	0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
-	0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
-	0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
-	0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
-	0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
-	0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
-	0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
-	0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
-	0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
-	0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
-	0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
-	0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
-	0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
-	0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
-	0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
-	0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
-	0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
-	0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
-	0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
-	0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
-	0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
-	0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
-	0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
-	0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
-	0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
-	0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
-	0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
-	0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
-	0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
-	0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
-	0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
-	0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
-	0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
-	0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
-	0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
-	0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
-	0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
-	0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
-	0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
-	0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
-	0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
-	0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
-	0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
-	0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
-	0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
-	0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
-	0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
-	0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
-	0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
-	0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
-	0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
-	0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
-	0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
-	0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
-	0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
-	0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
-	0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
-	0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
-	0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
-	0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
-	0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
-	0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
-	0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
-	0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
-	0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
-	0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
-	0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
-	0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
-	0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
-	0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
-	0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
-	0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
-	0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
-	0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
-	0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
-	0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
-	0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
-	0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
-	0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
-	0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
-	0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
-	0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
-	0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
-	0x38, 0xf1, 0x42, 0x1a, 0xc0, 0x35, 0xf5, 0xc7,
-	0x36, 0x85, 0xf5, 0xf7, 0xb8, 0x7e, 0xc7, 0xef,
-	0x18, 0xf1, 0x63, 0xd6, 0x7a, 0xc6, 0xc9, 0x0e,
-	0x4d, 0x69, 0x4f, 0x84, 0xef, 0x26, 0x41, 0x0c,
-	0xec, 0xc7, 0xe0, 0x7e, 0x3c, 0x67, 0x01, 0x4c,
-	0x62, 0x1a, 0x20, 0x6f, 0xee, 0x47, 0x4d, 0xc0,
-	0x99, 0x13, 0x8d, 0x91, 0x4a, 0x26, 0xd4, 0x37,
-	0x28, 0x90, 0x58, 0x75, 0x66, 0x2b, 0x0a, 0xdf,
-	0xda, 0xee, 0x92, 0x25, 0x90, 0x62, 0x39, 0x9e,
-	0x44, 0x98, 0xad, 0xc1, 0x88, 0xed, 0xe4, 0xb4,
-	0xaf, 0xf5, 0x8c, 0x9b, 0x48, 0x4d, 0x56, 0x60,
-	0x97, 0x0f, 0x61, 0x59, 0x9e, 0xa6, 0x27, 0xfe,
-	0xc1, 0x91, 0x15, 0x38, 0xb8, 0x0f, 0xae, 0x61,
-	0x7d, 0x26, 0x13, 0x5a, 0x73, 0xff, 0x1c, 0xa3,
-	0x61, 0x04, 0x58, 0x48, 0x55, 0x44, 0x11, 0xfe,
-	0x15, 0xca, 0xc3, 0xbd, 0xca, 0xc5, 0xb4, 0x40,
-	0x5d, 0x1b, 0x7f, 0x39, 0xb5, 0x9c, 0x35, 0xec,
-	0x61, 0x15, 0x32, 0x32, 0xb8, 0x4e, 0x40, 0x9f,
-	0x17, 0x1f, 0x0a, 0x4d, 0xa9, 0x91, 0xef, 0xb7,
-	0xb0, 0xeb, 0xc2, 0x83, 0x9a, 0x6c, 0xd2, 0x79,
-	0x43, 0x78, 0x5e, 0x2f, 0xe5, 0xdd, 0x1a, 0x3c,
-	0x45, 0xab, 0x29, 0x40, 0x3a, 0x37, 0x5b, 0x6f,
-	0xd7, 0xfc, 0x48, 0x64, 0x3c, 0x49, 0xfb, 0x21,
-	0xbe, 0xc3, 0xff, 0x07, 0xfb, 0x17, 0xe9, 0xc9,
-	0x0c, 0x4c, 0x5c, 0x15, 0x9e, 0x8e, 0x22, 0x30,
-	0x0a, 0xde, 0x48, 0x7f, 0xdb, 0x0d, 0xd1, 0x2b,
-	0x87, 0x38, 0x9e, 0xcc, 0x5a, 0x01, 0x16, 0xee,
-	0x75, 0x49, 0x0d, 0x30, 0x01, 0x34, 0x6a, 0xb6,
-	0x9a, 0x5a, 0x2a, 0xec, 0xbb, 0x48, 0xac, 0xd3,
-	0x77, 0x83, 0xd8, 0x08, 0x86, 0x4f, 0x48, 0x09,
-	0x29, 0x41, 0x79, 0xa1, 0x03, 0x12, 0xc4, 0xcd,
-	0x90, 0x55, 0x47, 0x66, 0x74, 0x9a, 0xcc, 0x4f,
-	0x35, 0x8c, 0xd6, 0x98, 0xef, 0xeb, 0x45, 0xb9,
-	0x9a, 0x26, 0x2f, 0x39, 0xa5, 0x70, 0x6d, 0xfc,
-	0xb4, 0x51, 0xee, 0xf4, 0x9c, 0xe7, 0x38, 0x59,
-	0xad, 0xf4, 0xbc, 0x46, 0xff, 0x46, 0x8e, 0x60,
-	0x9c, 0xa3, 0x60, 0x1d, 0xf8, 0x26, 0x72, 0xf5,
-	0x72, 0x9d, 0x68, 0x80, 0x04, 0xf6, 0x0b, 0xa1,
-	0x0a, 0xd5, 0xa7, 0x82, 0x3a, 0x3e, 0x47, 0xa8,
-	0x5a, 0xde, 0x59, 0x4f, 0x7b, 0x07, 0xb3, 0xe9,
-	0x24, 0x19, 0x3d, 0x34, 0x05, 0xec, 0xf1, 0xab,
-	0x6e, 0x64, 0x8f, 0xd3, 0xe6, 0x41, 0x86, 0x80,
-	0x70, 0xe3, 0x8d, 0x60, 0x9c, 0x34, 0x25, 0x01,
-	0x07, 0x4d, 0x19, 0x41, 0x4e, 0x3d, 0x5c, 0x7e,
-	0xa8, 0xf5, 0xcc, 0xd5, 0x7b, 0xe2, 0x7d, 0x3d,
-	0x49, 0x86, 0x7d, 0x07, 0xb7, 0x10, 0xe3, 0x35,
-	0xb8, 0x84, 0x6d, 0x76, 0xab, 0x17, 0xc6, 0x38,
-	0xb4, 0xd3, 0x28, 0x57, 0xad, 0xd3, 0x88, 0x5a,
-	0xda, 0xea, 0xc8, 0x94, 0xcc, 0x37, 0x19, 0xac,
-	0x9c, 0x9f, 0x4b, 0x00, 0x15, 0xc0, 0xc8, 0xca,
-	0x1f, 0x15, 0xaa, 0xe0, 0xdb, 0xf9, 0x2f, 0x57,
-	0x1b, 0x24, 0xc7, 0x6f, 0x76, 0x29, 0xfb, 0xed,
-	0x25, 0x0d, 0xc0, 0xfe, 0xbd, 0x5a, 0xbf, 0x20,
-	0x08, 0x51, 0x05, 0xec, 0x71, 0xa3, 0xbf, 0xef,
-	0x5e, 0x99, 0x75, 0xdb, 0x3c, 0x5f, 0x9a, 0x8c,
-	0xbb, 0x19, 0x5c, 0x0e, 0x93, 0x19, 0xf8, 0x6a,
-	0xbc, 0xf2, 0x12, 0x54, 0x2f, 0xcb, 0x28, 0x64,
-	0x88, 0xb3, 0x92, 0x0d, 0x96, 0xd1, 0xa6, 0xe4,
-	0x1f, 0xf1, 0x4d, 0xa4, 0xab, 0x1c, 0xee, 0x54,
-	0xf2, 0xad, 0x29, 0x6d, 0x32, 0x37, 0xb2, 0x16,
-	0x77, 0x5c, 0xdc, 0x2e, 0x54, 0xec, 0x75, 0x26,
-	0xc6, 0x36, 0xd9, 0x17, 0x2c, 0xf1, 0x7a, 0xdc,
-	0x4b, 0xf1, 0xe2, 0xd9, 0x95, 0xba, 0xac, 0x87,
-	0xc1, 0xf3, 0x8e, 0x58, 0x08, 0xd8, 0x87, 0x60,
-	0xc9, 0xee, 0x6a, 0xde, 0xa4, 0xd2, 0xfc, 0x0d,
-	0xe5, 0x36, 0xc4, 0x5c, 0x52, 0xb3, 0x07, 0x54,
-	0x65, 0x24, 0xc1, 0xb1, 0xd1, 0xb1, 0x53, 0x13,
-	0x31, 0x79, 0x7f, 0x05, 0x76, 0xeb, 0x37, 0x59,
-	0x15, 0x2b, 0xd1, 0x3f, 0xac, 0x08, 0x97, 0xeb,
-	0x91, 0x98, 0xdf, 0x6c, 0x09, 0x0d, 0x04, 0x9f,
-	0xdc, 0x3b, 0x0e, 0x60, 0x68, 0x47, 0x23, 0x15,
-	0x16, 0xc6, 0x0b, 0x35, 0xf8, 0x77, 0xa2, 0x78,
-	0x50, 0xd4, 0x64, 0x22, 0x33, 0xff, 0xfb, 0x93,
-	0x71, 0x46, 0x50, 0x39, 0x1b, 0x9c, 0xea, 0x4e,
-	0x8d, 0x0c, 0x37, 0xe5, 0x5c, 0x51, 0x3a, 0x31,
-	0xb2, 0x85, 0x84, 0x3f, 0x41, 0xee, 0xa2, 0xc1,
-	0xc6, 0x13, 0x3b, 0x54, 0x28, 0xd2, 0x18, 0x37,
-	0xcc, 0x46, 0x9f, 0x6a, 0x91, 0x3d, 0x5a, 0x15,
-	0x3c, 0x89, 0xa3, 0x61, 0x06, 0x7d, 0x2e, 0x78,
-	0xbe, 0x7d, 0x40, 0xba, 0x2f, 0x95, 0xb1, 0x2f,
-	0x87, 0x3b, 0x8a, 0xbe, 0x6a, 0xf4, 0xc2, 0x31,
-	0x74, 0xee, 0x91, 0xe0, 0x23, 0xaa, 0x5d, 0x7f,
-	0xdd, 0xf0, 0x44, 0x8c, 0x0b, 0x59, 0x2b, 0xfc,
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-	0x8a, 0xc2, 0xe0, 0x60, 0x96, 0xcc, 0x18, 0xf4,
-	0x84, 0xdd, 0xa7, 0x5e, 0x3e, 0x05, 0x0b, 0x26,
-	0x26, 0xb2, 0x5c, 0x1f, 0x57, 0x1a, 0x04, 0x7e,
-	0x6a, 0xe3, 0x2f, 0xb4, 0x35, 0xb6, 0x38, 0x40,
-	0x40, 0xcd, 0x6f, 0x87, 0x2e, 0xef, 0xa3, 0xd7,
-	0xa9, 0xc2, 0xe8, 0x0d, 0x27, 0xdf, 0x44, 0x62,
-	0x99, 0xa0, 0xfc, 0xcf, 0x81, 0x78, 0xcb, 0xfe,
-	0xe5, 0xa0, 0x03, 0x4e, 0x6c, 0xd7, 0xf4, 0xaf,
-	0x7a, 0xbb, 0x61, 0x82, 0xfe, 0x71, 0x89, 0xb2,
-	0x22, 0x7c, 0x8e, 0x83, 0x04, 0xce, 0xf6, 0x5d,
-	0x84, 0x8f, 0x95, 0x6a, 0x7f, 0xad, 0xfd, 0x32,
-	0x9c, 0x5e, 0xe4, 0x9c, 0x89, 0x60, 0x54, 0xaa,
-	0x96, 0x72, 0xd2, 0xd7, 0x36, 0x85, 0xa9, 0x45,
-	0xd2, 0x2a, 0xa1, 0x81, 0x49, 0x6f, 0x7e, 0x04,
-	0xfa, 0xe2, 0xfe, 0x90, 0x26, 0x77, 0x5a, 0x33,
-	0xb8, 0x04, 0x9a, 0x7a, 0xe6, 0x4c, 0x4f, 0xad,
-	0x72, 0x96, 0x08, 0x28, 0x58, 0x13, 0xf8, 0xc4,
-	0x1c, 0xf0, 0xc3, 0x45, 0x95, 0x49, 0x20, 0x8c,
-	0x9f, 0x39, 0x70, 0xe1, 0x77, 0xfe, 0xd5, 0x4b,
-	0xaf, 0x86, 0xda, 0xef, 0x22, 0x06, 0x83, 0x36,
-	0x29, 0x12, 0x11, 0x40, 0xbc, 0x3b, 0x86, 0xaa,
-	0xaa, 0x65, 0x60, 0xc3, 0x80, 0xca, 0xed, 0xa9,
-	0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
-	0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
-	0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
-	0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
-	0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
-	0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
-	0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
-	0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
-	0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
-	0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
-	0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
-	0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
-	0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
-	0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
-	0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
-	0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
-	0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
-	0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
-	0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
-	0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
-	0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
-	0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
-	0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
-	0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
-	0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
-	0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
-	0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
-	0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
-	0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
-	0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
-	0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
-	0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
-	0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
-	0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
-	0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
-	0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
-	0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
-	0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
-	0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
-	0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
-	0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
-	0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
-	0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
-	0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
-	0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
-	0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
-	0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
-	0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
-	0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
-	0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
-	0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
-	0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
-	0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
-	0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
-	0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
-	0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
-	0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
-	0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
-	0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
-	0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
-	0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
-	0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
-	0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
-	0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
-	0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
-	0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
-	0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
-	0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
-	0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
-	0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
-	0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
-	0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
-	0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
-	0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
-	0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
-	0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
-	0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
-	0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
-	0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
-	0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
-	0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
-	0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
-	0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
-	0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
-	0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
-	0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
-	0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
-};
-
-/* 100 test cases */
-static struct crc_test {
-	u32 crc;	/* random starting crc */
-	u32 start;	/* random 6 bit offset in buf */
-	u32 length;	/* random 11 bit length of test */
-	u32 crc_le;	/* expected crc32_le result */
-	u32 crc_be;	/* expected crc32_be result */
-	u32 crc32c_le;	/* expected crc32c_le result */
-} const test[] __initconst =
-{
-	{0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1, 0xf6e93d6c},
-	{0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad, 0x0fe92aca},
-	{0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f, 0x52e1ebb8},
-	{0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a, 0x0798af9a},
-	{0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2, 0x18eb3152},
-	{0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793, 0xd00d08c7},
-	{0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed, 0x8ba966bc},
-	{0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35, 0x11d694a2},
-	{0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2, 0x6ab3208d},
-	{0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10, 0xba4603c5},
-	{0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb, 0xe6071c6f},
-	{0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0, 0x179ec30a},
-	{0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb, 0x0903beb8},
-	{0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed, 0x6a7cb4fa},
-	{0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591, 0xdb535801},
-	{0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67, 0x92bed597},
-	{0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd, 0x192a3f1b},
-	{0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a, 0xccbaec1a},
-	{0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b, 0x7eabae4d},
-	{0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f, 0x28c72982},
-	{0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d, 0xc3cd4d18},
-	{0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a, 0xbca8f0e7},
-	{0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97, 0x713f60b3},
-	{0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2, 0xebd08fd5},
-	{0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138, 0x64406c59},
-	{0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032, 0x7421890e},
-	{0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f, 0xe9347603},
-	{0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f, 0x1bef9060},
-	{0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32, 0x34720072},
-	{0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef, 0x48310f59},
-	{0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0, 0x783a4213},
-	{0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59, 0x9e8efd41},
-	{0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4, 0xfc3d34a5},
-	{0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c, 0x17a52ae2},
-	{0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51, 0x886d935a},
-	{0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11, 0xeaaeaeb2},
-	{0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659, 0x8e900a4b},
-	{0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af, 0xd74662b1},
-	{0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99, 0xd26752ba},
-	{0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b, 0x8b1fcd62},
-	{0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521, 0xf54342fe},
-	{0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3, 0x5b95b988},
-	{0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d, 0x2e1176be},
-	{0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f, 0x66120546},
-	{0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b, 0xf256a5cc},
-	{0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0, 0x4af1dd69},
-	{0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195, 0x56f0a04a},
-	{0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d, 0x74f6b6b2},
-	{0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4, 0x085951fd},
-	{0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3, 0xc65387eb},
-	{0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643, 0x1ca9257b},
-	{0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10, 0xfd196d76},
-	{0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d, 0x5ef88339},
-	{0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5, 0x2c3714d9},
-	{0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b, 0x58576548},
-	{0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee, 0xfd7c57de},
-	{0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14, 0xd5fedd59},
-	{0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a, 0x1cc3b17b},
-	{0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b, 0x270eed73},
-	{0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3, 0x91ecbb11},
-	{0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826, 0x05ed8d0c},
-	{0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06, 0x0b09ad5b},
-	{0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35, 0xf8d511fb},
-	{0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801, 0x5ad832cc},
-	{0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2, 0x1214d196},
-	{0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d, 0x5747218a},
-	{0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c, 0xde8f14de},
-	{0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba, 0x3563b7b9},
-	{0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5, 0x071475d0},
-	{0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b, 0x54c79d60},
-	{0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178, 0x4c53eee6},
-	{0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3, 0x10137a3c},
-	{0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605, 0xaa9d6c73},
-	{0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1, 0xb63d23e7},
-	{0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9, 0x7f53e9cf},
-	{0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78, 0x13c1cd83},
-	{0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9, 0x49ff5867},
-	{0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd, 0x8467f211},
-	{0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab, 0x3f9683b2},
-	{0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb, 0x76a3f874},
-	{0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77, 0x863b702f},
-	{0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da, 0xdc6c58ff},
-	{0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39, 0x0622cc95},
-	{0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16, 0xe85605cd},
-	{0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208, 0x31da5f06},
-	{0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e, 0xa1f2e784},
-	{0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5, 0xb07cc616},
-	{0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892, 0xbf943b6c},
-	{0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db, 0x2c01af1c},
-	{0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43, 0x0fe5f56d},
-	{0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac, 0xf8943b2d},
-	{0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7, 0xe4d89272},
-	{0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2, 0x7c2f6bbb},
-	{0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2, 0xabbf388b},
-	{0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640, 0x1dca1f4e},
-	{0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f, 0x5c170e23},
-	{0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99, 0xc0e9d672},
-	{0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7, 0xc18bdc86},
-	{0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499, 0xa874fcdd},
-	{0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a, 0x9dc0bb48},
-};
-
-#include <linux/time.h>
-
-static int __init crc32c_test(void)
-{
-	int i;
-	int errors = 0;
-	int bytes = 0;
-	u64 nsec;
-	unsigned long flags;
-
-	/* keep static to prevent cache warming code from
-	 * getting eliminated by the compiler */
-	static u32 crc;
-
-	/* pre-warm the cache */
-	for (i = 0; i < 100; i++) {
-		bytes += 2*test[i].length;
-
-		crc ^= __crc32c_le(test[i].crc, test_buf +
-		    test[i].start, test[i].length);
-	}
-
-	/* reduce OS noise */
-	local_irq_save(flags);
-	local_irq_disable();
-
-	nsec = ktime_get_ns();
-	for (i = 0; i < 100; i++) {
-		if (test[i].crc32c_le != __crc32c_le(test[i].crc, test_buf +
-		    test[i].start, test[i].length))
-			errors++;
-	}
-	nsec = ktime_get_ns() - nsec;
-
-	local_irq_restore(flags);
-	local_irq_enable();
-
-	pr_info("crc32c: CRC_LE_BITS = %d\n", CRC_LE_BITS);
-
-	if (errors)
-		pr_warn("crc32c: %d self tests failed\n", errors);
-	else {
-		pr_info("crc32c: self tests passed, processed %d bytes in %lld nsec\n",
-			bytes, nsec);
-	}
-
-	return 0;
-}
-
-static int __init crc32c_combine_test(void)
-{
-	int i, j;
-	int errors = 0, runs = 0;
-
-	for (i = 0; i < 10; i++) {
-		u32 crc_full;
-
-		crc_full = __crc32c_le(test[i].crc, test_buf + test[i].start,
-				       test[i].length);
-		for (j = 0; j <= test[i].length; ++j) {
-			u32 crc1, crc2;
-			u32 len1 = j, len2 = test[i].length - j;
-
-			crc1 = __crc32c_le(test[i].crc, test_buf +
-					   test[i].start, len1);
-			crc2 = __crc32c_le(0, test_buf + test[i].start +
-					   len1, len2);
-
-			if (!(crc_full == __crc32c_le_combine(crc1, crc2, len2) &&
-			      crc_full == test[i].crc32c_le))
-				errors++;
-			runs++;
-			cond_resched();
-		}
-	}
-
-	if (errors)
-		pr_warn("crc32c_combine: %d/%d self tests failed\n", errors, runs);
-	else
-		pr_info("crc32c_combine: %d self tests passed\n", runs);
-
-	return 0;
-}
-
-static int __init crc32_test(void)
-{
-	int i;
-	int errors = 0;
-	int bytes = 0;
-	u64 nsec;
-	unsigned long flags;
-
-	/* keep static to prevent cache warming code from
-	 * getting eliminated by the compiler */
-	static u32 crc;
-
-	/* pre-warm the cache */
-	for (i = 0; i < 100; i++) {
-		bytes += 2*test[i].length;
-
-		crc ^= crc32_le(test[i].crc, test_buf +
-		    test[i].start, test[i].length);
-
-		crc ^= crc32_be(test[i].crc, test_buf +
-		    test[i].start, test[i].length);
-	}
-
-	/* reduce OS noise */
-	local_irq_save(flags);
-	local_irq_disable();
-
-	nsec = ktime_get_ns();
-	for (i = 0; i < 100; i++) {
-		if (test[i].crc_le != crc32_le(test[i].crc, test_buf +
-		    test[i].start, test[i].length))
-			errors++;
-
-		if (test[i].crc_be != crc32_be(test[i].crc, test_buf +
-		    test[i].start, test[i].length))
-			errors++;
-	}
-	nsec = ktime_get_ns() - nsec;
-
-	local_irq_restore(flags);
-	local_irq_enable();
-
-	pr_info("crc32: CRC_LE_BITS = %d, CRC_BE BITS = %d\n",
-		 CRC_LE_BITS, CRC_BE_BITS);
-
-	if (errors)
-		pr_warn("crc32: %d self tests failed\n", errors);
-	else {
-		pr_info("crc32: self tests passed, processed %d bytes in %lld nsec\n",
-			bytes, nsec);
-	}
-
-	return 0;
-}
-
-static int __init crc32_combine_test(void)
-{
-	int i, j;
-	int errors = 0, runs = 0;
-
-	for (i = 0; i < 10; i++) {
-		u32 crc_full;
-
-		crc_full = crc32_le(test[i].crc, test_buf + test[i].start,
-				    test[i].length);
-		for (j = 0; j <= test[i].length; ++j) {
-			u32 crc1, crc2;
-			u32 len1 = j, len2 = test[i].length - j;
-
-			crc1 = crc32_le(test[i].crc, test_buf +
-					test[i].start, len1);
-			crc2 = crc32_le(0, test_buf + test[i].start +
-					len1, len2);
-
-			if (!(crc_full == crc32_le_combine(crc1, crc2, len2) &&
-			      crc_full == test[i].crc_le))
-				errors++;
-			runs++;
-			cond_resched();
-		}
-	}
-
-	if (errors)
-		pr_warn("crc32_combine: %d/%d self tests failed\n", errors, runs);
-	else
-		pr_info("crc32_combine: %d self tests passed\n", runs);
-
-	return 0;
-}
-
-static int __init crc32test_init(void)
-{
-	crc32_test();
-	crc32c_test();
-
-	crc32_combine_test();
-	crc32c_combine_test();
-
-	return 0;
-}
-
-static void __exit crc32_exit(void)
-{
-}
-
-module_init(crc32test_init);
-module_exit(crc32_exit);
-#endif /* CONFIG_CRC32_SELFTEST */
diff --git a/lib/crc32.c b/lib/crc32test.c
similarity index 82%
copy from lib/crc32.c
copy to lib/crc32test.c
index 7fbd1a112b9d2474..97d6a57cefcc5d28 100644
--- a/lib/crc32.c
+++ b/lib/crc32test.c
@@ -24,324 +24,11 @@
  * Version 2.  See the file COPYING for more details.
  */
 
-/* see: Documentation/crc32.txt for a description of algorithms */
-
 #include <linux/crc32.h>
 #include <linux/module.h>
-#include <linux/types.h>
 #include <linux/sched.h>
-#include "crc32defs.h"
-
-#if CRC_LE_BITS > 8
-# define tole(x) ((__force u32) cpu_to_le32(x))
-#else
-# define tole(x) (x)
-#endif
-
-#if CRC_BE_BITS > 8
-# define tobe(x) ((__force u32) cpu_to_be32(x))
-#else
-# define tobe(x) (x)
-#endif
-
-#include "crc32table.h"
-
-MODULE_AUTHOR("Matt Domsch <Matt_Domsch@dell.com>");
-MODULE_DESCRIPTION("Various CRC32 calculations");
-MODULE_LICENSE("GPL");
-
-#if CRC_LE_BITS > 8 || CRC_BE_BITS > 8
-
-/* implements slicing-by-4 or slicing-by-8 algorithm */
-static inline u32 __pure
-crc32_body(u32 crc, unsigned char const *buf, size_t len, const u32 (*tab)[256])
-{
-# ifdef __LITTLE_ENDIAN
-#  define DO_CRC(x) crc = t0[(crc ^ (x)) & 255] ^ (crc >> 8)
-#  define DO_CRC4 (t3[(q) & 255] ^ t2[(q >> 8) & 255] ^ \
-		   t1[(q >> 16) & 255] ^ t0[(q >> 24) & 255])
-#  define DO_CRC8 (t7[(q) & 255] ^ t6[(q >> 8) & 255] ^ \
-		   t5[(q >> 16) & 255] ^ t4[(q >> 24) & 255])
-# else
-#  define DO_CRC(x) crc = t0[((crc >> 24) ^ (x)) & 255] ^ (crc << 8)
-#  define DO_CRC4 (t0[(q) & 255] ^ t1[(q >> 8) & 255] ^ \
-		   t2[(q >> 16) & 255] ^ t3[(q >> 24) & 255])
-#  define DO_CRC8 (t4[(q) & 255] ^ t5[(q >> 8) & 255] ^ \
-		   t6[(q >> 16) & 255] ^ t7[(q >> 24) & 255])
-# endif
-	const u32 *b;
-	size_t    rem_len;
-# ifdef CONFIG_X86
-	size_t i;
-# endif
-	const u32 *t0=tab[0], *t1=tab[1], *t2=tab[2], *t3=tab[3];
-# if CRC_LE_BITS != 32
-	const u32 *t4 = tab[4], *t5 = tab[5], *t6 = tab[6], *t7 = tab[7];
-# endif
-	u32 q;
-
-	/* Align it */
-	if (unlikely((long)buf & 3 && len)) {
-		do {
-			DO_CRC(*buf++);
-		} while ((--len) && ((long)buf)&3);
-	}
-
-# if CRC_LE_BITS == 32
-	rem_len = len & 3;
-	len = len >> 2;
-# else
-	rem_len = len & 7;
-	len = len >> 3;
-# endif
-
-	b = (const u32 *)buf;
-# ifdef CONFIG_X86
-	--b;
-	for (i = 0; i < len; i++) {
-# else
-	for (--b; len; --len) {
-# endif
-		q = crc ^ *++b; /* use pre increment for speed */
-# if CRC_LE_BITS == 32
-		crc = DO_CRC4;
-# else
-		crc = DO_CRC8;
-		q = *++b;
-		crc ^= DO_CRC4;
-# endif
-	}
-	len = rem_len;
-	/* And the last few bytes */
-	if (len) {
-		u8 *p = (u8 *)(b + 1) - 1;
-# ifdef CONFIG_X86
-		for (i = 0; i < len; i++)
-			DO_CRC(*++p); /* use pre increment for speed */
-# else
-		do {
-			DO_CRC(*++p); /* use pre increment for speed */
-		} while (--len);
-# endif
-	}
-	return crc;
-#undef DO_CRC
-#undef DO_CRC4
-#undef DO_CRC8
-}
-#endif
-
-
-/**
- * crc32_le_generic() - Calculate bitwise little-endian Ethernet AUTODIN II
- *			CRC32/CRC32C
- * @crc: seed value for computation.  ~0 for Ethernet, sometimes 0 for other
- *	 uses, or the previous crc32/crc32c value if computing incrementally.
- * @p: pointer to buffer over which CRC32/CRC32C is run
- * @len: length of buffer @p
- * @tab: little-endian Ethernet table
- * @polynomial: CRC32/CRC32c LE polynomial
- */
-static inline u32 __pure crc32_le_generic(u32 crc, unsigned char const *p,
-					  size_t len, const u32 (*tab)[256],
-					  u32 polynomial)
-{
-#if CRC_LE_BITS == 1
-	int i;
-	while (len--) {
-		crc ^= *p++;
-		for (i = 0; i < 8; i++)
-			crc = (crc >> 1) ^ ((crc & 1) ? polynomial : 0);
-	}
-# elif CRC_LE_BITS == 2
-	while (len--) {
-		crc ^= *p++;
-		crc = (crc >> 2) ^ tab[0][crc & 3];
-		crc = (crc >> 2) ^ tab[0][crc & 3];
-		crc = (crc >> 2) ^ tab[0][crc & 3];
-		crc = (crc >> 2) ^ tab[0][crc & 3];
-	}
-# elif CRC_LE_BITS == 4
-	while (len--) {
-		crc ^= *p++;
-		crc = (crc >> 4) ^ tab[0][crc & 15];
-		crc = (crc >> 4) ^ tab[0][crc & 15];
-	}
-# elif CRC_LE_BITS == 8
-	/* aka Sarwate algorithm */
-	while (len--) {
-		crc ^= *p++;
-		crc = (crc >> 8) ^ tab[0][crc & 255];
-	}
-# else
-	crc = (__force u32) __cpu_to_le32(crc);
-	crc = crc32_body(crc, p, len, tab);
-	crc = __le32_to_cpu((__force __le32)crc);
-#endif
-	return crc;
-}
-
-#if CRC_LE_BITS == 1
-u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len)
-{
-	return crc32_le_generic(crc, p, len, NULL, CRCPOLY_LE);
-}
-u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len)
-{
-	return crc32_le_generic(crc, p, len, NULL, CRC32C_POLY_LE);
-}
-#else
-u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len)
-{
-	return crc32_le_generic(crc, p, len,
-			(const u32 (*)[256])crc32table_le, CRCPOLY_LE);
-}
-u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len)
-{
-	return crc32_le_generic(crc, p, len,
-			(const u32 (*)[256])crc32ctable_le, CRC32C_POLY_LE);
-}
-#endif
-EXPORT_SYMBOL(crc32_le);
-EXPORT_SYMBOL(__crc32c_le);
-
-/*
- * This multiplies the polynomials x and y modulo the given modulus.
- * This follows the "little-endian" CRC convention that the lsbit
- * represents the highest power of x, and the msbit represents x^0.
- */
-static u32 __attribute_const__ gf2_multiply(u32 x, u32 y, u32 modulus)
-{
-	u32 product = x & 1 ? y : 0;
-	int i;
 
-	for (i = 0; i < 31; i++) {
-		product = (product >> 1) ^ (product & 1 ? modulus : 0);
-		x >>= 1;
-		product ^= x & 1 ? y : 0;
-	}
-
-	return product;
-}
-
-/**
- * crc32_generic_shift - Append len 0 bytes to crc, in logarithmic time
- * @crc: The original little-endian CRC (i.e. lsbit is x^31 coefficient)
- * @len: The number of bytes. @crc is multiplied by x^(8*@len)
- * @polynomial: The modulus used to reduce the result to 32 bits.
- *
- * It's possible to parallelize CRC computations by computing a CRC
- * over separate ranges of a buffer, then summing them.
- * This shifts the given CRC by 8*len bits (i.e. produces the same effect
- * as appending len bytes of zero to the data), in time proportional
- * to log(len).
- */
-static u32 __attribute_const__ crc32_generic_shift(u32 crc, size_t len,
-						   u32 polynomial)
-{
-	u32 power = polynomial;	/* CRC of x^32 */
-	int i;
-
-	/* Shift up to 32 bits in the simple linear way */
-	for (i = 0; i < 8 * (int)(len & 3); i++)
-		crc = (crc >> 1) ^ (crc & 1 ? polynomial : 0);
-
-	len >>= 2;
-	if (!len)
-		return crc;
-
-	for (;;) {
-		/* "power" is x^(2^i), modulo the polynomial */
-		if (len & 1)
-			crc = gf2_multiply(crc, power, polynomial);
-
-		len >>= 1;
-		if (!len)
-			break;
-
-		/* Square power, advancing to x^(2^(i+1)) */
-		power = gf2_multiply(power, power, polynomial);
-	}
-
-	return crc;
-}
-
-u32 __attribute_const__ crc32_le_shift(u32 crc, size_t len)
-{
-	return crc32_generic_shift(crc, len, CRCPOLY_LE);
-}
-
-u32 __attribute_const__ __crc32c_le_shift(u32 crc, size_t len)
-{
-	return crc32_generic_shift(crc, len, CRC32C_POLY_LE);
-}
-EXPORT_SYMBOL(crc32_le_shift);
-EXPORT_SYMBOL(__crc32c_le_shift);
-
-/**
- * crc32_be_generic() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32
- * @crc: seed value for computation.  ~0 for Ethernet, sometimes 0 for
- *	other uses, or the previous crc32 value if computing incrementally.
- * @p: pointer to buffer over which CRC32 is run
- * @len: length of buffer @p
- * @tab: big-endian Ethernet table
- * @polynomial: CRC32 BE polynomial
- */
-static inline u32 __pure crc32_be_generic(u32 crc, unsigned char const *p,
-					  size_t len, const u32 (*tab)[256],
-					  u32 polynomial)
-{
-#if CRC_BE_BITS == 1
-	int i;
-	while (len--) {
-		crc ^= *p++ << 24;
-		for (i = 0; i < 8; i++)
-			crc =
-			    (crc << 1) ^ ((crc & 0x80000000) ? polynomial :
-					  0);
-	}
-# elif CRC_BE_BITS == 2
-	while (len--) {
-		crc ^= *p++ << 24;
-		crc = (crc << 2) ^ tab[0][crc >> 30];
-		crc = (crc << 2) ^ tab[0][crc >> 30];
-		crc = (crc << 2) ^ tab[0][crc >> 30];
-		crc = (crc << 2) ^ tab[0][crc >> 30];
-	}
-# elif CRC_BE_BITS == 4
-	while (len--) {
-		crc ^= *p++ << 24;
-		crc = (crc << 4) ^ tab[0][crc >> 28];
-		crc = (crc << 4) ^ tab[0][crc >> 28];
-	}
-# elif CRC_BE_BITS == 8
-	while (len--) {
-		crc ^= *p++ << 24;
-		crc = (crc << 8) ^ tab[0][crc >> 24];
-	}
-# else
-	crc = (__force u32) __cpu_to_be32(crc);
-	crc = crc32_body(crc, p, len, tab);
-	crc = __be32_to_cpu((__force __be32)crc);
-# endif
-	return crc;
-}
-
-#if CRC_LE_BITS == 1
-u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
-{
-	return crc32_be_generic(crc, p, len, NULL, CRCPOLY_BE);
-}
-#else
-u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
-{
-	return crc32_be_generic(crc, p, len,
-			(const u32 (*)[256])crc32table_be, CRCPOLY_BE);
-}
-#endif
-EXPORT_SYMBOL(crc32_be);
-
-#ifdef CONFIG_CRC32_SELFTEST
+#include "crc32defs.h"
 
 /* 4096 random bytes */
 static u8 const __aligned(8) test_buf[] __initconst =
@@ -1163,4 +850,7 @@ static void __exit crc32_exit(void)
 
 module_init(crc32test_init);
 module_exit(crc32_exit);
-#endif /* CONFIG_CRC32_SELFTEST */
+
+MODULE_AUTHOR("Matt Domsch <Matt_Domsch@dell.com>");
+MODULE_DESCRIPTION("CRC32 selftest");
+MODULE_LICENSE("GPL");
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH 2/3] lib: Add module support to glob tests
  2017-01-03 19:04 [PATCH 1/3] lib: Add module support to crc32 tests Geert Uytterhoeven
@ 2017-01-03 19:04 ` Geert Uytterhoeven
  2017-01-04  9:22   ` Andy Shevchenko
  2017-01-03 19:04 ` [PATCH 3/3] lib: Add module support to atomic64 tests Geert Uytterhoeven
  1 sibling, 1 reply; 4+ messages in thread
From: Geert Uytterhoeven @ 2017-01-03 19:04 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Matt Domsch, Luca Barbieri, George Spelvin, linux-kernel,
	Geert Uytterhoeven

Extract the glob test code into its own source file, to allow to
compile it either to a loadable module, or builtin into the kernel.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 lib/Kconfig                |   3 +-
 lib/Makefile               |   1 +
 lib/glob.c                 | 164 ---------------------------------------------
 lib/{glob.c => globtest.c} | 132 ++----------------------------------
 4 files changed, 8 insertions(+), 292 deletions(-)
 copy lib/{glob.c => globtest.c} (54%)

diff --git a/lib/Kconfig b/lib/Kconfig
index 0095b828f2384691..7e19f85a8c5e7db8 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -431,8 +431,7 @@ config GLOB
 	  depends on this.
 
 config GLOB_SELFTEST
-	bool "glob self-test on init"
-	default n
+	tristate "glob self-test on init"
 	depends on GLOB
 	help
 	  This option enables a simple self-test of the glob_match
diff --git a/lib/Makefile b/lib/Makefile
index ef723f8d3c1dd9d8..35621b9c641432f1 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -160,6 +160,7 @@ obj-$(CONFIG_CORDIC) += cordic.o
 obj-$(CONFIG_DQL) += dynamic_queue_limits.o
 
 obj-$(CONFIG_GLOB) += glob.o
+obj-$(CONFIG_GLOB_SELFTEST) += globtest.o
 
 obj-$(CONFIG_MPILIB) += mpi/
 obj-$(CONFIG_SIGNATURE) += digsig.o
diff --git a/lib/glob.c b/lib/glob.c
index 500fc80d23e10765..0ba3ea86b5466c10 100644
--- a/lib/glob.c
+++ b/lib/glob.c
@@ -121,167 +121,3 @@ bool __pure glob_match(char const *pat, char const *str)
 	}
 }
 EXPORT_SYMBOL(glob_match);
-
-
-#ifdef CONFIG_GLOB_SELFTEST
-
-#include <linux/printk.h>
-#include <linux/moduleparam.h>
-
-/* Boot with "glob.verbose=1" to show successful tests, too */
-static bool verbose = false;
-module_param(verbose, bool, 0);
-
-struct glob_test {
-	char const *pat, *str;
-	bool expected;
-};
-
-static bool __pure __init test(char const *pat, char const *str, bool expected)
-{
-	bool match = glob_match(pat, str);
-	bool success = match == expected;
-
-	/* Can't get string literals into a particular section, so... */
-	static char const msg_error[] __initconst =
-		KERN_ERR "glob: \"%s\" vs. \"%s\": %s *** ERROR ***\n";
-	static char const msg_ok[] __initconst =
-		KERN_DEBUG "glob: \"%s\" vs. \"%s\": %s OK\n";
-	static char const mismatch[] __initconst = "mismatch";
-	char const *message;
-
-	if (!success)
-		message = msg_error;
-	else if (verbose)
-		message = msg_ok;
-	else
-		return success;
-
-	printk(message, pat, str, mismatch + 3*match);
-	return success;
-}
-
-/*
- * The tests are all jammed together in one array to make it simpler
- * to place that array in the .init.rodata section.  The obvious
- * "array of structures containing char *" has no way to force the
- * pointed-to strings to be in a particular section.
- *
- * Anyway, a test consists of:
- * 1. Expected glob_match result: '1' or '0'.
- * 2. Pattern to match: null-terminated string
- * 3. String to match against: null-terminated string
- *
- * The list of tests is terminated with a final '\0' instead of
- * a glob_match result character.
- */
-static char const glob_tests[] __initconst =
-	/* Some basic tests */
-	"1" "a\0" "a\0"
-	"0" "a\0" "b\0"
-	"0" "a\0" "aa\0"
-	"0" "a\0" "\0"
-	"1" "\0" "\0"
-	"0" "\0" "a\0"
-	/* Simple character class tests */
-	"1" "[a]\0" "a\0"
-	"0" "[a]\0" "b\0"
-	"0" "[!a]\0" "a\0"
-	"1" "[!a]\0" "b\0"
-	"1" "[ab]\0" "a\0"
-	"1" "[ab]\0" "b\0"
-	"0" "[ab]\0" "c\0"
-	"1" "[!ab]\0" "c\0"
-	"1" "[a-c]\0" "b\0"
-	"0" "[a-c]\0" "d\0"
-	/* Corner cases in character class parsing */
-	"1" "[a-c-e-g]\0" "-\0"
-	"0" "[a-c-e-g]\0" "d\0"
-	"1" "[a-c-e-g]\0" "f\0"
-	"1" "[]a-ceg-ik[]\0" "a\0"
-	"1" "[]a-ceg-ik[]\0" "]\0"
-	"1" "[]a-ceg-ik[]\0" "[\0"
-	"1" "[]a-ceg-ik[]\0" "h\0"
-	"0" "[]a-ceg-ik[]\0" "f\0"
-	"0" "[!]a-ceg-ik[]\0" "h\0"
-	"0" "[!]a-ceg-ik[]\0" "]\0"
-	"1" "[!]a-ceg-ik[]\0" "f\0"
-	/* Simple wild cards */
-	"1" "?\0" "a\0"
-	"0" "?\0" "aa\0"
-	"0" "??\0" "a\0"
-	"1" "?x?\0" "axb\0"
-	"0" "?x?\0" "abx\0"
-	"0" "?x?\0" "xab\0"
-	/* Asterisk wild cards (backtracking) */
-	"0" "*??\0" "a\0"
-	"1" "*??\0" "ab\0"
-	"1" "*??\0" "abc\0"
-	"1" "*??\0" "abcd\0"
-	"0" "??*\0" "a\0"
-	"1" "??*\0" "ab\0"
-	"1" "??*\0" "abc\0"
-	"1" "??*\0" "abcd\0"
-	"0" "?*?\0" "a\0"
-	"1" "?*?\0" "ab\0"
-	"1" "?*?\0" "abc\0"
-	"1" "?*?\0" "abcd\0"
-	"1" "*b\0" "b\0"
-	"1" "*b\0" "ab\0"
-	"0" "*b\0" "ba\0"
-	"1" "*b\0" "bb\0"
-	"1" "*b\0" "abb\0"
-	"1" "*b\0" "bab\0"
-	"1" "*bc\0" "abbc\0"
-	"1" "*bc\0" "bc\0"
-	"1" "*bc\0" "bbc\0"
-	"1" "*bc\0" "bcbc\0"
-	/* Multiple asterisks (complex backtracking) */
-	"1" "*ac*\0" "abacadaeafag\0"
-	"1" "*ac*ae*ag*\0" "abacadaeafag\0"
-	"1" "*a*b*[bc]*[ef]*g*\0" "abacadaeafag\0"
-	"0" "*a*b*[ef]*[cd]*g*\0" "abacadaeafag\0"
-	"1" "*abcd*\0" "abcabcabcabcdefg\0"
-	"1" "*ab*cd*\0" "abcabcabcabcdefg\0"
-	"1" "*abcd*abcdef*\0" "abcabcdabcdeabcdefg\0"
-	"0" "*abcd*\0" "abcabcabcabcefg\0"
-	"0" "*ab*cd*\0" "abcabcabcabcefg\0";
-
-static int __init glob_init(void)
-{
-	unsigned successes = 0;
-	unsigned n = 0;
-	char const *p = glob_tests;
-	static char const message[] __initconst =
-		KERN_INFO "glob: %u self-tests passed, %u failed\n";
-
-	/*
-	 * Tests are jammed together in a string.  The first byte is '1'
-	 * or '0' to indicate the expected outcome, or '\0' to indicate the
-	 * end of the tests.  Then come two null-terminated strings: the
-	 * pattern and the string to match it against.
-	 */
-	while (*p) {
-		bool expected = *p++ & 1;
-		char const *pat = p;
-
-		p += strlen(p) + 1;
-		successes += test(pat, p, expected);
-		p += strlen(p) + 1;
-		n++;
-	}
-
-	n -= successes;
-	printk(message, successes, n);
-
-	/* What's the errno for "kernel bug detected"?  Guess... */
-	return n ? -ECANCELED : 0;
-}
-
-/* We need a dummy exit function to allow unload */
-static void __exit glob_fini(void) { }
-
-module_init(glob_init);
-module_exit(glob_fini);
-
-#endif /* CONFIG_GLOB_SELFTEST */
diff --git a/lib/glob.c b/lib/globtest.c
similarity index 54%
copy from lib/glob.c
copy to lib/globtest.c
index 500fc80d23e10765..d8e97d43b905a300 100644
--- a/lib/glob.c
+++ b/lib/globtest.c
@@ -1,132 +1,11 @@
-#include <linux/module.h>
-#include <linux/glob.h>
-
 /*
- * The only reason this code can be compiled as a module is because the
- * ATA code that depends on it can be as well.  In practice, they're
- * both usually compiled in and the module overhead goes away.
- */
-MODULE_DESCRIPTION("glob(7) matching");
-MODULE_LICENSE("Dual MIT/GPL");
-
-/**
- * glob_match - Shell-style pattern matching, like !fnmatch(pat, str, 0)
- * @pat: Shell-style pattern to match, e.g. "*.[ch]".
- * @str: String to match.  The pattern must match the entire string.
- *
- * Perform shell-style glob matching, returning true (1) if the match
- * succeeds, or false (0) if it fails.  Equivalent to !fnmatch(@pat, @str, 0).
- *
- * Pattern metacharacters are ?, *, [ and \.
- * (And, inside character classes, !, - and ].)
- *
- * This is small and simple implementation intended for device blacklists
- * where a string is matched against a number of patterns.  Thus, it
- * does not preprocess the patterns.  It is non-recursive, and run-time
- * is at most quadratic: strlen(@str)*strlen(@pat).
- *
- * An example of the worst case is glob_match("*aaaaa", "aaaaaaaaaa");
- * it takes 6 passes over the pattern before matching the string.
- *
- * Like !fnmatch(@pat, @str, 0) and unlike the shell, this does NOT
- * treat / or leading . specially; it isn't actually used for pathnames.
- *
- * Note that according to glob(7) (and unlike bash), character classes
- * are complemented by a leading !; this does not support the regex-style
- * [^a-z] syntax.
- *
- * An opening bracket without a matching close is matched literally.
+ * Extracted fronm glob.c
  */
-bool __pure glob_match(char const *pat, char const *str)
-{
-	/*
-	 * Backtrack to previous * on mismatch and retry starting one
-	 * character later in the string.  Because * matches all characters
-	 * (no exception for /), it can be easily proved that there's
-	 * never a need to backtrack multiple levels.
-	 */
-	char const *back_pat = NULL, *back_str = back_str;
 
-	/*
-	 * Loop over each token (character or class) in pat, matching
-	 * it against the remaining unmatched tail of str.  Return false
-	 * on mismatch, or true after matching the trailing nul bytes.
-	 */
-	for (;;) {
-		unsigned char c = *str++;
-		unsigned char d = *pat++;
-
-		switch (d) {
-		case '?':	/* Wildcard: anything but nul */
-			if (c == '\0')
-				return false;
-			break;
-		case '*':	/* Any-length wildcard */
-			if (*pat == '\0')	/* Optimize trailing * case */
-				return true;
-			back_pat = pat;
-			back_str = --str;	/* Allow zero-length match */
-			break;
-		case '[': {	/* Character class */
-			bool match = false, inverted = (*pat == '!');
-			char const *class = pat + inverted;
-			unsigned char a = *class++;
-
-			/*
-			 * Iterate over each span in the character class.
-			 * A span is either a single character a, or a
-			 * range a-b.  The first span may begin with ']'.
-			 */
-			do {
-				unsigned char b = a;
-
-				if (a == '\0')	/* Malformed */
-					goto literal;
-
-				if (class[0] == '-' && class[1] != ']') {
-					b = class[1];
-
-					if (b == '\0')
-						goto literal;
-
-					class += 2;
-					/* Any special action if a > b? */
-				}
-				match |= (a <= c && c <= b);
-			} while ((a = *class++) != ']');
-
-			if (match == inverted)
-				goto backtrack;
-			pat = class;
-			}
-			break;
-		case '\\':
-			d = *pat++;
-			/*FALLTHROUGH*/
-		default:	/* Literal character */
-literal:
-			if (c == d) {
-				if (d == '\0')
-					return true;
-				break;
-			}
-backtrack:
-			if (c == '\0' || !back_pat)
-				return false;	/* No point continuing */
-			/* Try again from last *, one character later in str. */
-			pat = back_pat;
-			str = ++back_str;
-			break;
-		}
-	}
-}
-EXPORT_SYMBOL(glob_match);
-
-
-#ifdef CONFIG_GLOB_SELFTEST
-
-#include <linux/printk.h>
+#include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/glob.h>
+#include <linux/printk.h>
 
 /* Boot with "glob.verbose=1" to show successful tests, too */
 static bool verbose = false;
@@ -284,4 +163,5 @@ static void __exit glob_fini(void) { }
 module_init(glob_init);
 module_exit(glob_fini);
 
-#endif /* CONFIG_GLOB_SELFTEST */
+MODULE_DESCRIPTION("glob(7) matching tests");
+MODULE_LICENSE("Dual MIT/GPL");
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH 3/3] lib: Add module support to atomic64 tests
  2017-01-03 19:04 [PATCH 1/3] lib: Add module support to crc32 tests Geert Uytterhoeven
  2017-01-03 19:04 ` [PATCH 2/3] lib: Add module support to glob tests Geert Uytterhoeven
@ 2017-01-03 19:04 ` Geert Uytterhoeven
  1 sibling, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2017-01-03 19:04 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Matt Domsch, Luca Barbieri, George Spelvin, linux-kernel,
	Geert Uytterhoeven

Allow to compile the atomic64 test code either to a loadable module, or
builtin into the kernel.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 lib/Kconfig.debug   |  5 +++--
 lib/atomic64_test.c | 10 ++++++++--
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b06848a104e6940e..42e210544b27fca7 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1765,9 +1765,10 @@ config PERCPU_TEST
 	  If unsure, say N.
 
 config ATOMIC64_SELFTEST
-	bool "Perform an atomic64_t self-test at boot"
+	tristate "Perform an atomic64_t self-test"
 	help
-	  Enable this option to test the atomic64_t functions at boot.
+	  Enable this option to test the atomic64_t functions at boot or
+	  at module load time.
 
 	  If unsure, say N.
 
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index 46042901130f107b..fd70c0e0e6731499 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -15,6 +15,7 @@
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/atomic.h>
+#include <linux/module.h>
 
 #ifdef CONFIG_X86
 #include <asm/cpufeature.h>	/* for boot_cpu_has below */
@@ -241,7 +242,7 @@ static __init void test_atomic64(void)
 	BUG_ON(v.counter != r);
 }
 
-static __init int test_atomics(void)
+static __init int test_atomics_init(void)
 {
 	test_atomic();
 	test_atomic64();
@@ -264,4 +265,9 @@ static __init int test_atomics(void)
 	return 0;
 }
 
-core_initcall(test_atomics);
+static __exit void test_atomics_exit(void) {}
+
+module_init(test_atomics_init);
+module_exit(test_atomics_exit);
+
+MODULE_LICENSE("GPL");
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH 2/3] lib: Add module support to glob tests
  2017-01-03 19:04 ` [PATCH 2/3] lib: Add module support to glob tests Geert Uytterhoeven
@ 2017-01-04  9:22   ` Andy Shevchenko
  0 siblings, 0 replies; 4+ messages in thread
From: Andy Shevchenko @ 2017-01-04  9:22 UTC (permalink / raw)
  To: Geert Uytterhoeven
  Cc: Andrew Morton, Matt Domsch, Luca Barbieri, George Spelvin, linux-kernel

On Tue, Jan 3, 2017 at 9:04 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> Extract the glob test code into its own source file, to allow to
> compile it either to a loadable module, or builtin into the kernel.

To the whole series
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

One minor comment below.

> +obj-$(CONFIG_GLOB_SELFTEST) += globtest.o

Can we use pattern test_*, or at least *_test.*?

-- 
With Best Regards,
Andy Shevchenko

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2017-01-04  9:23 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-03 19:04 [PATCH 1/3] lib: Add module support to crc32 tests Geert Uytterhoeven
2017-01-03 19:04 ` [PATCH 2/3] lib: Add module support to glob tests Geert Uytterhoeven
2017-01-04  9:22   ` Andy Shevchenko
2017-01-03 19:04 ` [PATCH 3/3] lib: Add module support to atomic64 tests Geert Uytterhoeven

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