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[build] Inhibit spurious array bounds warning on some versions of gcc 

Some versions of gcc (observed with gcc 9.3.0 on NixOS Linux) produce
a spurious warning about an out-of-bounds array access for the
isa_extra_probe_addrs[] array.

Work around this compiler bug by redefining the array index as a
signed long, which seems to somehow avoid this spurious warning.

Debugged-by: Manuel Mendez <mmendez534@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/211/head
Michael Brown 2021-01-15 20:54:27 +00:00
parent a5fb41873d
commit 8e3826aa10
1 changed files with 1 additions and 1 deletions
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2
src/drivers/bus/isa.c
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@ -95,7 +95,7 @@ static void isa_remove ( struct isa_device *isa ) {
static int isabus_probe ( struct root_device *rootdev ) { static int isabus_probe ( struct root_device *rootdev ) {
struct isa_device *isa = NULL; struct isa_device *isa = NULL;
struct isa_driver *driver; struct isa_driver *driver;
int ioidx; long ioidx;
int rc; int rc;
for_each_table_entry ( driver, ISA_DRIVERS ) { for_each_table_entry ( driver, ISA_DRIVERS ) {