From b7613370db5ba66ad81e41cd3a5417fde4d5e03c Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Thu, 9 Dec 2010 09:08:47 -0500 Subject: ath: fix build break with ATH_DBG_WARN_ON_ONCE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Description by Hauke: "If CONFIG_ATH_DEBUG=y is set ATH_DBG_WARN_ON_ONCE uses WARN_ON_ONCE and returns something, but if CONFIG_ATH_DEBUG is not set it does not return anything. Now ATH_DBG_WARN_ON_ONCE is used in the boolean expression in an if case and is not returning anything and causes a compile error. CC [M] /drivers/net/wireless/ath/ath9k/main.o /drivers/net/wireless/ath/ath9k/main.c: In function ‘ath_isr’: /drivers/net/wireless/ath/ath9k/main.c:769: error: expected expression before ‘do’ make[5]: *** [/drivers/net/wireless/ath/ath9k/main.o] Error 1 make[4]: *** [/drivers/net/wireless/ath/ath9k] Error 2" Reported-by: Hauke Mehrtens Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h index 3eb95e268f03..e43210c8585c 100644 --- a/drivers/net/wireless/ath/ath.h +++ b/drivers/net/wireless/ath/ath.h @@ -272,7 +272,10 @@ ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask, return 0; } #define ATH_DBG_WARN(foo, arg...) do {} while (0) -#define ATH_DBG_WARN_ON_ONCE(foo) do {} while (0) +#define ATH_DBG_WARN_ON_ONCE(foo) ({ \ + int __ret_warn_once = !!(foo); \ + unlikely(__ret_warn_once); \ +}) #endif /* CONFIG_ATH_DEBUG */ -- cgit v1.2.3