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Date: Tue, 13 Jan 2015 15:23:52 +0100 From: Arnd Bergmann <arnd@...db.de> To: netdev@...r.kernel.org Cc: David Miller <davem@...emloft.net>, Jiri Pirko <jiri@...nulli.us>, Scott Feldman <sfeldma@...il.com>, linux-arm-kernel@...ts.infradead.org Subject: [PATCH] rocker: fix harmless warning on 32-bit machines The rocker driver tries to assign a pointer to a 64-bit integer and then back to a pointer. This is safe on all architectures, but causes a compiler warning when pointers are shorter than 64-bit: rocker/rocker.c: In function 'rocker_desc_cookie_ptr_get': rocker/rocker.c:809:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] return (void *) desc_info->desc->cookie; ^ This adds another cast to uintptr_t to tell the compiler that it's safe. Signed-off-by: Arnd Bergmann <arnd@...db.de> diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c index 2f398fa4b9e6..cad8cf962cdf 100644 --- a/drivers/net/ethernet/rocker/rocker.c +++ b/drivers/net/ethernet/rocker/rocker.c @@ -806,13 +806,13 @@ static bool rocker_desc_gen(struct rocker_desc_info *desc_info) static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info *desc_info) { - return (void *) desc_info->desc->cookie; + return (void *)(uintptr_t)desc_info->desc->cookie; } static void rocker_desc_cookie_ptr_set(struct rocker_desc_info *desc_info, void *ptr) { - desc_info->desc->cookie = (long) ptr; + desc_info->desc->cookie = (uintptr_t) ptr; } static struct rocker_desc_info * -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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