On Wed, Feb 08, 2023 at 07:54:50AM -0800, Tom Rix wrote: > Building with clang W=2 has several similar warnings > drivers/accel/habanalabs/common/decoder.c:46:51: error: declaration shadows a variable in the global scope [-Werror,-Wshadow] > static void dec_error_intr_work(struct hl_device *hdev, u32 base_addr, u32 core_id) > ^ > drivers/accel/habanalabs/common/security.h:13:26: note: previous declaration is here > extern struct hl_device *hdev; > ^ > > There is no global definition of hdev, so the extern is not needed. > Searched with > grep -r '^struct' . | grep hl_dev > > Change to an forward decl to resolve these issues > drivers/accel/habanalabs/common/mmu/../security.h:133:40: error: ‘struct hl_device’ declared inside parameter list will not be visible outside of this definition or declaration [-Werror] > 133 | bool (*skip_block_hook)(struct hl_device *hdev, > | ^~~~~~~~~ > > Signed-off-by: Tom Rix <trix@xxxxxxxxxx> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@xxxxxxxxxxxxxxx> > --- > drivers/accel/habanalabs/common/security.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/accel/habanalabs/common/security.h b/drivers/accel/habanalabs/common/security.h > index 234b4a6ed8bc..d7a3b3e82ea4 100644 > --- a/drivers/accel/habanalabs/common/security.h > +++ b/drivers/accel/habanalabs/common/security.h > @@ -10,7 +10,7 @@ > > #include <linux/io-64-nonatomic-lo-hi.h> > > -extern struct hl_device *hdev; > +struct hl_device; > > /* special blocks */ > #define HL_MAX_NUM_OF_GLBL_ERR_CAUSE 10 > -- > 2.26.3 >
