From 230816d48ed0213f25a1835f5e0e1bbef96bb896 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 2 Feb 2018 14:12:17 +0100 Subject: [PATCH] scsi: sym53c416: avoid section mismatch with LTO Building with link time optimizations produces a false-positive section mismatch warning: WARNING: vmlinux.o(.data+0xf8c8): Section mismatch in reference from the variable driver_template.lto_priv.6915 to the function .init.text:sym53c416_detect() The variable driver_template.lto_priv.6915 references the function __init sym53c416_detect() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console The ->detect callback is always entered from the init_this_scsi_driver() init function, but apparently LTO turns the optimized direct function call into an indirect call through a non-__initdata pointer. All drivers using init_this_scsi_driver() are for ancient hardware, and most don't mark the detect() callback as __init(), so I'm just removing the annotation here to kill off the warning instead of doing a larger rework. [mkp: typo] Signed-off-by: Arnd Bergmann Signed-off-by: Martin K. Petersen --- drivers/scsi/sym53c416.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c index 5bdcbe8..e68bcdc 100644 --- a/drivers/scsi/sym53c416.c +++ b/drivers/scsi/sym53c416.c @@ -608,7 +608,7 @@ static void sym53c416_probe(void) } } -int __init sym53c416_detect(struct scsi_host_template *tpnt) +int sym53c416_detect(struct scsi_host_template *tpnt) { unsigned long flags; struct Scsi_Host * shpnt = NULL; -- 2.7.4