[fs/squashfs PATCH v3 1/2] Add warning for dynamic memory usage.

[Mauro Condarelli]

SquashFS may need a large amount of dynamic memory fot its buffers,
especially if and when compression is enabled I got failures with
CONFIG_SYS_MALLOC_LEN < 0x4000.

I found no way to enforce this in Kconfig itself, so I resorted
to ada a warning in help string.

Signed-off-by: Mauro Condarelli <mc5686 at mclink.it>
---

(no changes since v1)

 fs/squashfs/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index 54ab1618f1..7c3f83d007 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -9,3 +9,5 @@ config FS_SQUASHFS
 	  filesystem use, for archival use (i.e. in cases where a .tar.gz file
 	  may be used), and in constrained block device/memory systems (e.g.
 	  embedded systems) where low overhead is needed.
+	  WARNING: if compression is enabled SquashFS needs a large amount
+	  of dynamic memory; make sure CONFIG_SYS_MALLOC_LEN >= 0x4000.
-- 
2.25.1