From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Wed, 12 Mar 2014 11:48:37 +0100 Subject: [U-Boot] [PATCH] arm: exynos: Squash bogus warnings in pinmux In-Reply-To: <20140312085156.006cf034@amdc2363> References: <1394478271-9837-1-git-send-email-marex@denx.de> <20140312085156.006cf034@amdc2363> Message-ID: <201403121148.37761.marex@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Wednesday, March 12, 2014 at 08:51:56 AM, Lukasz Majewski wrote: > Hi Simon, Marek, > > > Hi Marek, > > > > On 10 March 2014 13:04, Marek Vasut wrote: > > > Squash these warnings in pinmux.c found with GCC 4.8: > > > > > > /arch/arm/cpu/armv7/exynos/pinmux.c: In function > > > 'exynos_pinmux_config': /arch/arm/cpu/armv7/exynos/pinmux.c:687:28: > > > warning: 'count' may be used uninitialized in this function > > > [-Wmaybe-uninitialized] for (i = start; i < start + count; i++) { ^ > > > /arch/arm/cpu/armv7/exynos/pinmux.c:663:16: note: 'count' was > > > declared here int i, start, count; > > > > > > ^ > > > > > > /arch/arm/cpu/armv7/exynos/pinmux.c:687:28: warning: 'start' may be > > > used uninitialized in this function [-Wmaybe-uninitialized] for (i > > > = start; i < start + count; i++) { ^ > > > /arch/arm/cpu/armv7/exynos/pinmux.c:663:9: note: 'start' was > > > declared here int i, start, count; > > > > > > ^ > > > > > > /arch/arm/cpu/armv7/exynos/pinmux.c:689:19: warning: 'bank' may be > > > used uninitialized in this function [-Wmaybe-uninitialized] > > > s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2)); ^ > > > /arch/arm/cpu/armv7/exynos/pinmux.c:662:24: note: 'bank' was > > > declared here struct s5p_gpio_bank *bank; > > > > > > ^ > > > > > > /arch/arm/cpu/armv7/exynos/pinmux.c: In function > > > 'exynos_pinmux_config': /arch/arm/cpu/armv7/exynos/pinmux.c:687:28: > > > warning: 'count' may be used uninitialized in this function > > > [-Wmaybe-uninitialized] for (i = start; i < start + count; i++) { ^ > > > /arch/arm/cpu/armv7/exynos/pinmux.c:663:16: note: 'count' was > > > declared here int i, start, count; > > > > > > ^ > > > > > > /arch/arm/cpu/armv7/exynos/pinmux.c:687:28: warning: 'start' may be > > > used uninitialized in this function [-Wmaybe-uninitialized] for (i > > > = start; i < start + count; i++) { ^ > > > /arch/arm/cpu/armv7/exynos/pinmux.c:663:9: note: 'start' was > > > declared here int i, start, count; > > > > > > ^ > > > > > > /arch/arm/cpu/armv7/exynos/pinmux.c:689:19: warning: 'bank' may be > > > used uninitialized in this function [-Wmaybe-uninitialized] > > > s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2)); ^ > > > /arch/arm/cpu/armv7/exynos/pinmux.c:662:24: note: 'bank' was > > > declared here struct s5p_gpio_bank *bank; > > > > > > ^ > > > > > > Note that the warning is bogus, the function can never be called > > > with invalid 'peripheral' argument. GCC just cannot analyze this. > > > > > > Signed-off-by: Marek Vasut > > > Cc: Naveen Krishna Chatradhi > > > Cc: Akshay Saraswat > > > Cc: Rajeshwari S Shinde > > > Cc: Simon Glass > > > Cc: Minkyu Kang > > > Cc: Tom Rini > > > > Acked-by: Simon Glass > > > > Thanks Marek, great to get that annoyance fixed. > > Fix for this issue has been already posted :-) (one week ago) > > http://patchwork.ozlabs.org/patch/327065/ > > But I don't mind if Marek's patch will be applied directly by Tom > before v2014.04 is released :-) Aren't you missing the exynos5_mmc_config() in your patch ? Otherwise, I don't mind either way and I'd prefer if your patch (which came in earlier) was applied of course (unless you are missing the _mmc_config).