platform: relax rom scanning alignment for ahci platforms

[thirdparty/mdadm.git] / platform-intel.c

diff --git a/platform-intel.c b/platform-intel.c
index 5160227be222e20682ef73d631566c98b4bc018e..eaf4c483d5f95b5547cb61b842002b71488dd13c 100644 (file)
--- a/platform-intel.c
+++ b/platform-intel.c
@@ -157,6 +157,7 @@ static int scan(const void *start, const void *end)
 const struct imsm_orom *find_imsm_orom(void)
 {
        static int populated = 0;
+       unsigned long align;
 
        /* it's static data so we only need to read it once */
        if (populated)
@@ -184,7 +185,11 @@ const struct imsm_orom *find_imsm_orom(void)
                return NULL;
 
        /* scan option-rom memory looking for an imsm signature */
-       if (probe_roms_init() != 0)
+       if (check_env("IMSM_SAFE_OROM_SCAN"))
+               align = 2048;
+       else
+               align = 512;
+       if (probe_roms_init(align) != 0)
                return NULL;
        probe_roms();
        populated = scan_adapter_roms(scan);