Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (53 commits)
  .gitignore: ignore *.lzma files
  kbuild: add generic --set-str option to scripts/config
  kbuild: simplify argument loop in scripts/config
  kbuild: handle non-existing options in scripts/config
  kallsyms: generalize text region handling
  kallsyms: support kernel symbols in Blackfin on-chip memory
  documentation: make version fix
  kbuild: fix a compile warning
  gitignore: Add GNU GLOBAL files to top .gitignore
  kbuild: fix delay in setlocalversion on readonly source
  README: fix misleading pointer to the defconf directory
  vmlinux.lds.h update
  kernel-doc: cleanup perl script
  Improve vmlinux.lds.h support for arch specific linker scripts
  kbuild: fix headers_exports with boolean expression
  kbuild/headers_check: refine extern check
  kbuild: fix "Argument list too long" error for "make headers_check",
  ignore *.patch files
  Remove bashisms from scripts
  menu: fix embedded menu presentation
  ...

1 files changed, 4 insertions, 2 deletions

diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 00790472f64..46989b88d73 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -39,8 +39,10 @@ if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
                 printf -- '-svn%s' "`git svn find-rev $head`"
         fi
 
-        # Are there uncommitted changes?
-        git update-index --refresh --unmerged > /dev/null
+        # Update index only on r/w media
+        [ -w . ] && git update-index --refresh --unmerged > /dev/null
+
+        # Check for uncommitted changes
         if git diff-index --name-only HEAD | grep -v "^scripts/package" \
             | read dummy; then
                 printf '%s' -dirty