From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 98AAE22ACDC; Mon, 10 Mar 2025 17:59:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741629597; cv=none; b=iZ4/n5Y93xQSpcxi8GllW7t8VkumzM9bW3QNYlxymdB/mL8sTJqujpN/6DIBcRm2DgBaWalmmBFWUcG7WquNXmgIkmTsSKk9bO1B60bMTWLATre/Z2rlhjfPqp9EqmUadHZez9bqQHKBoLuzpA7/fvuYQPb2REOif8pu+SlQkm8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741629597; c=relaxed/simple; bh=kHMHq7pkOAHgruKB+/u1gSNuOByOzsWTkhzUIGBRXXU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ja2Sd1kMsENfSRhs4V/1wRxVnRo8OH8TmOiDKO2eBcUo6dUW6uJnLJUlqZMGdEbN6HFAdyMBogwb8Wq0Kyti1914ekIoGNtjiZXBPkqKSxkS9e8ioAfwI11GaFGKExH80VEn6mKlkX5MTbkSEjbmMOfaulLJJYt8pwoVQYxwglo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MDTho9ar; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="MDTho9ar" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23695C4CEE5; Mon, 10 Mar 2025 17:59:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741629597; bh=kHMHq7pkOAHgruKB+/u1gSNuOByOzsWTkhzUIGBRXXU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MDTho9arMr2apTgf0WjBS4k5bZYQ6ikmg7CDqUYN8nYAjVKd/KOo5CRULQ7eXjb21 vWDm48zxgYiQGDIE27Wm/k2GeKYsD8xblU0Vx/WLeRK/9YX+ZI9/frGUM2k1yNQpQl qNQ9HRAr4jredggdDy+WBJm6U8LO9ELLpdm2bT28= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Naresh Kamboju , Linux Kernel Functional Testing , Arnd Bergmann , Hans Verkuil , Sasha Levin Subject: [PATCH 5.15 348/620] media: cxd2841er: fix 64-bit division on gcc-9 Date: Mon, 10 Mar 2025 18:03:14 +0100 Message-ID: <20250310170559.347656088@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170545.553361750@linuxfoundation.org> References: <20250310170545.553361750@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Arnd Bergmann [ Upstream commit 8d46603eeeb4c6abff1d2e49f2a6ae289dac765e ] It appears that do_div() once more gets confused by a complex expression that ends up not quite being constant despite __builtin_constant_p() thinking it is: ERROR: modpost: "__aeabi_uldivmod" [drivers/media/dvb-frontends/cxd2841er.ko] undefined! Use div_u64() instead, forcing the expression to be evaluated first, and making it a bit more readable. Cc: Dan Carpenter Reported-by: Naresh Kamboju Closes: https://lore.kernel.org/linux-media/CA+G9fYvvNm-aYodLaAwwTjEGtX0YxR-1R14FOA5aHKt0sSVsYg@mail.gmail.com/ Reported-by: Linux Kernel Functional Testing Closes: https://lore.kernel.org/linux-media/CA+G9fYvvNm-aYodLaAwwTjEGtX0YxR-1R14FOA5aHKt0sSVsYg@mail.gmail.com/ Signed-off-by: Arnd Bergmann Signed-off-by: Hans Verkuil [hverkuil: added Closes tags] Signed-off-by: Sasha Levin --- drivers/media/dvb-frontends/cxd2841er.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/media/dvb-frontends/cxd2841er.c b/drivers/media/dvb-frontends/cxd2841er.c index e9d1eef40c627..798da50421368 100644 --- a/drivers/media/dvb-frontends/cxd2841er.c +++ b/drivers/media/dvb-frontends/cxd2841er.c @@ -311,12 +311,8 @@ static int cxd2841er_set_reg_bits(struct cxd2841er_priv *priv, static u32 cxd2841er_calc_iffreq_xtal(enum cxd2841er_xtal xtal, u32 ifhz) { - u64 tmp; - - tmp = (u64) ifhz * 16777216; - do_div(tmp, ((xtal == SONY_XTAL_24000) ? 48000000 : 41000000)); - - return (u32) tmp; + return div_u64(ifhz * 16777216ull, + (xtal == SONY_XTAL_24000) ? 48000000 : 41000000); } static u32 cxd2841er_calc_iffreq(u32 ifhz) -- 2.39.5