2 files changed, 21 insertions, 20 deletions

diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 49b407eab846..09c19ef91526 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -1,5 +1,6 @@
 config PSTORE
         tristate "Persistent store support"
+        select CRYPTO if PSTORE_COMPRESS
         default n
         help
            This option enables generic access to platform level
@@ -13,7 +14,7 @@ config PSTORE
            say N.
 
 config PSTORE_DEFLATE_COMPRESS
-        bool "DEFLATE (ZLIB) compression"
+        tristate "DEFLATE (ZLIB) compression"
         default y
         depends on PSTORE
         select CRYPTO_DEFLATE
@@ -22,21 +23,21 @@ config PSTORE_DEFLATE_COMPRESS
           algorithm support.
 
 config PSTORE_LZO_COMPRESS
-        bool "LZO compression"
+        tristate "LZO compression"
         depends on PSTORE
         select CRYPTO_LZO
         help
           This option enables LZO compression algorithm support.
 
 config PSTORE_LZ4_COMPRESS
-        bool "LZ4 compression"
+        tristate "LZ4 compression"
         depends on PSTORE
         select CRYPTO_LZ4
         help
           This option enables LZ4 compression algorithm support.
 
 config PSTORE_LZ4HC_COMPRESS
-        bool "LZ4HC compression"
+        tristate "LZ4HC compression"
         depends on PSTORE
         select CRYPTO_LZ4HC
         help
@@ -70,19 +71,19 @@ choice
           The default compression algorithm is deflate.
 
         config PSTORE_DEFLATE_COMPRESS_DEFAULT
-                bool "deflate" if PSTORE_DEFLATE_COMPRESS=y
+                bool "deflate" if PSTORE_DEFLATE_COMPRESS
 
         config PSTORE_LZO_COMPRESS_DEFAULT
-                bool "lzo" if PSTORE_LZO_COMPRESS=y
+                bool "lzo" if PSTORE_LZO_COMPRESS
 
         config PSTORE_LZ4_COMPRESS_DEFAULT
-                bool "lz4" if PSTORE_LZ4_COMPRESS=y
+                bool "lz4" if PSTORE_LZ4_COMPRESS
 
         config PSTORE_LZ4HC_COMPRESS_DEFAULT
-                bool "lz4hc" if PSTORE_LZ4HC_COMPRESS=y
+                bool "lz4hc" if PSTORE_LZ4HC_COMPRESS
 
         config PSTORE_842_COMPRESS_DEFAULT
-                bool "842" if PSTORE_842_COMPRESS=y
+                bool "842" if PSTORE_842_COMPRESS
 
 endchoice
 
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 42e111b3bd0c..1143ef351c58 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -28,10 +28,10 @@
 #include <linux/console.h>
 #include <linux/module.h>
 #include <linux/pstore.h>
-#ifdef CONFIG_PSTORE_LZO_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_LZO_COMPRESS)
 #include <linux/lzo.h>
 #endif
-#if defined(CONFIG_PSTORE_LZ4_COMPRESS) || defined(CONFIG_PSTORE_LZ4HC_COMPRESS)
+#if IS_ENABLED(CONFIG_PSTORE_LZ4_COMPRESS) || IS_ENABLED(CONFIG_PSTORE_LZ4HC_COMPRESS)
 #include <linux/lz4.h>
 #endif
 #include <linux/crypto.h>
@@ -142,7 +142,7 @@ bool pstore_cannot_block_path(enum kmsg_dump_reason reason)
 }
 EXPORT_SYMBOL_GPL(pstore_cannot_block_path);
 
-#ifdef CONFIG_PSTORE_DEFLATE_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_DEFLATE_COMPRESS)
 static int zbufsize_deflate(size_t size)
 {
         size_t cmpr;
@@ -171,21 +171,21 @@ static int zbufsize_deflate(size_t size)
 }
 #endif
 
-#ifdef CONFIG_PSTORE_LZO_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_LZO_COMPRESS)
 static int zbufsize_lzo(size_t size)
 {
         return lzo1x_worst_compress(size);
 }
 #endif
 
-#if defined(CONFIG_PSTORE_LZ4_COMPRESS) || defined(CONFIG_PSTORE_LZ4HC_COMPRESS)
+#if IS_ENABLED(CONFIG_PSTORE_LZ4_COMPRESS) || IS_ENABLED(CONFIG_PSTORE_LZ4HC_COMPRESS)
 static int zbufsize_lz4(size_t size)
 {
         return LZ4_compressBound(size);
 }
 #endif
 
-#ifdef CONFIG_PSTORE_842_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_842_COMPRESS)
 static int zbufsize_842(size_t size)
 {
         return size;
@@ -195,31 +195,31 @@ static int zbufsize_842(size_t size)
 static const struct pstore_zbackend *zbackend __ro_after_init;
 
 static const struct pstore_zbackend zbackends[] = {
-#ifdef CONFIG_PSTORE_DEFLATE_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_DEFLATE_COMPRESS)
         {
                 .zbufsize       = zbufsize_deflate,
                 .name           = "deflate",
         },
 #endif
-#ifdef CONFIG_PSTORE_LZO_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_LZO_COMPRESS)
         {
                 .zbufsize       = zbufsize_lzo,
                 .name           = "lzo",
         },
 #endif
-#ifdef CONFIG_PSTORE_LZ4_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_LZ4_COMPRESS)
         {
                 .zbufsize       = zbufsize_lz4,
                 .name           = "lz4",
         },
 #endif
-#ifdef CONFIG_PSTORE_LZ4HC_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_LZ4HC_COMPRESS)
         {
                 .zbufsize       = zbufsize_lz4,
                 .name           = "lz4hc",
         },
 #endif
-#ifdef CONFIG_PSTORE_842_COMPRESS
+#if IS_ENABLED(CONFIG_PSTORE_842_COMPRESS)
         {
                 .zbufsize       = zbufsize_842,
                 .name           = "842",