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[U-Boot,v2,2/6] errno: Allow errno_str() to be used without CONFIG_ERRNO_STR

Message ID 1462748122-30918-3-git-send-email-sjg@chromium.org
State Accepted
Commit 862887d8836643e316cd019b93b1732971c8aaf8
Delegated to: Tom Warren
Headers show

Commit Message

Simon Glass May 8, 2016, 10:55 p.m. UTC 
The pmic framework uses errno_str() and this requires board that use it to
enable CONFIG_ERRNO_STR to avoid a build error. Update the header to provide
a NULL error message when CONFIG_ERRNO_STR is not defined, and fix the build
error.

This will show as "(null)" when U-Boot prints it.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2:
- Add new patch to allow errno_str() to be used without CONFIG_ERRNO_STR

 include/errno.h | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/errno.h b/include/errno.h
index 3942681..15ece2f 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -15,5 +15,10 @@  extern int errno;
 
 #ifdef CONFIG_ERRNO_STR
 const char *errno_str(int errno);
+#else
+static inline const char *errno_str(int errno)
+{
+	return 0;
+}
 #endif
 #endif /* _ERRNO_H */