[PATCH v2 1/4] kexec: (bugfix) calc correct end address of memory ranges in device tree

Geoff Levand geoff at infradead.org
Tue Jul 26 13:18:57 PDT 2016


From: AKASHI Takahiro <takahiro.akashi at linaro.org>

The end address of "reg" attribute in device tree's memory should be
inclusive.

From: AKASHI Takahiro <takahiro.akashi at linaro.org>
Signed-off-by: Geoff Levand <geoff at infradead.org>
---
 kexec/fs2dt.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kexec/fs2dt.c b/kexec/fs2dt.c
index 6ed2399..f00fd98 100644
--- a/kexec/fs2dt.c
+++ b/kexec/fs2dt.c
@@ -236,7 +236,8 @@ static void add_dyn_reconf_usable_mem_property__(int fd)
 						    ranges_size*8);
 				}
 				ranges[rlen++] = cpu_to_be64(loc_base);
-				ranges[rlen++] = cpu_to_be64(loc_end - loc_base);
+				ranges[rlen++] = cpu_to_be64(loc_end
+								- loc_base + 1);
 				rngs_cnt++;
 			}
 		}
@@ -350,7 +351,7 @@ static void add_usable_mem_property(int fd, size_t len)
 					    ranges_size*sizeof(*ranges));
 			}
 			ranges[rlen++] = cpu_to_be64(loc_base);
-			ranges[rlen++] = cpu_to_be64(loc_end - loc_base);
+			ranges[rlen++] = cpu_to_be64(loc_end - loc_base + 1);
 		}
 	}
 
-- 
2.5.0





More information about the linux-arm-kernel mailing list