From patchwork Fri Oct 25 23:48:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 177799 Delivered-To: patches@linaro.org Received: by 2002:a92:409a:0:0:0:0:0 with SMTP id d26csp223279ill; Fri, 25 Oct 2019 16:48:40 -0700 (PDT) X-Received: by 2002:a17:90a:234c:: with SMTP id f70mr7220468pje.109.1572047319958; Fri, 25 Oct 2019 16:48:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1572047319; cv=none; d=google.com; s=arc-20160816; b=HQMCq7xHH1LG1/gFuzUh5+JJ+ayGkOv0w+c7FWSRUFTDtHCShbDBeXwld+AchCfNAP +dW3dPE8PvR1jLbmGB50YCcXSamNyKC7gfGXiAxCw57hJgYVpXZVevieboc8t39tJ/Ch PXcCfrOmf7y3hPrqxkx18/SkjaPD03ZK1PsmdtzcWCcVrylulsG+tAQQikPL8BmxQJO4 eYeiFaWIvDMp88zSmyHOJe2In044hCVJY9jxc6HIQI3u1s+2KrI0HtGahMTX17eu/894 20KMU3qcuvLVvCI3n+V2Dwg5Fm3wdxhdRmPl1P7PCJGzkDfkFK/s848yAiJV3HVq0Zhl 6yQA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=kpP5L5ZL9jr9Wuirrq/wpxNCtz1x33e9wP9JwvG83tE=; b=AHTHYupfBKurAWR4fRCI5UwmDpbakdt4WE0lPFMf8CtLh8pVuXZGJoTdkrlZRaCxbK Nd26P2V3q1jRzH7wOlm14+FxUFxscQE7OjrApd4+NIA18h1OkdvRJn23G9NIeKU4zpEd 2L/UpbnaIumpqVTPmBxYKK8fGDOwcHF/7QmxKlTivRhiTy0p8hbyA2N7a3iiiPv3pY7R k6dpw54GMtG+22zTsMonIpTbTePDlK+UHbT+KNHqzbkvvvJtrSqgHrsmsIsXWpiNynZP gAko8I84p1nzqOjYGr6F51yEmkhlOXMve4q3+O6cobOs0cka2R5OUkLdmCZt3CSYE5rP wFQQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=aH+q1oJw; spf=pass (google.com: domain of john.stultz@linaro.org designates 209.85.220.65 as permitted sender) smtp.mailfrom=john.stultz@linaro.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id f4sor4905251pln.60.2019.10.25.16.48.39 for (Google Transport Security); Fri, 25 Oct 2019 16:48:39 -0700 (PDT) Received-SPF: pass (google.com: domain of john.stultz@linaro.org designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=aH+q1oJw; spf=pass (google.com: domain of john.stultz@linaro.org designates 209.85.220.65 as permitted sender) smtp.mailfrom=john.stultz@linaro.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=kpP5L5ZL9jr9Wuirrq/wpxNCtz1x33e9wP9JwvG83tE=; b=aH+q1oJwle0nqOjUevAI2mb8wKUrtDhyNCymP6wx1Ejk2vXIr1dGQFtWul5+98jwl5 NO9Iy0gKcfG72k6QZO9qhdGo7LSYi0XtxBHzmFcp9Isx9v1/v6olIDuSiz8ZyEYNQEib ibY4cf3DmZZuXO/k7TCOxJOoVEUq1q9IGNs9O36Zv62yADhnhDv/ea+isimPR9ixiX0J S7AVKbruLRl+6+C5qP1BB4gA+aaGLy3wtcy1dJhqRG5Y7KeXR9sDkspCuLQZPbL0Am4L KYy8KYY6fS36vL5cyXVmwC9VUEPcZHQJ6gcR7JBqhiYKRIA0N07LPYw1nkLntijgcZZg s5/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=kpP5L5ZL9jr9Wuirrq/wpxNCtz1x33e9wP9JwvG83tE=; b=k/kSUeDxFN0vJExINSPhUdvZtOtdVK7oV9nQEQh4CL2fYPZUYEKtZFTo3tyZrfs0M9 VPqNi+PIEm8dwJgGTPSi1U9l2CzTwCPH666ejJ70pMwGALDzwxOz+wfYWfylTXYiGWMf GnpGb9U+yUnp0CdH9HPpiEe9MvYoI1XVVubSokfepZnX5PW+LrO2+ljJYc/ct5/W+gvW JH0iLJm1aHSzJWUGfnLcUeMePDoQFUh9jQyHKTITokpZbCPev3bAJoN1wOGO0+ql3TlZ UzJPXFQHA9dOavzJTpBdtLAvuOfIeCFdaJfZKHgQ/Zkm9/Fkj9OEGSEONjyJ9LKc0jXU JTWA== X-Gm-Message-State: APjAAAUcpJrlxYAwuX/+QwaVH+KykYKp28Z7YoVvbG8lqUpxj3gtwURm WRi6KwNZQFHyysDMwDqTTKNW8HLe X-Google-Smtp-Source: APXvYqychMWInYueDZ6EKJar8eyzhLNrYGYyX2Zp5f95/WM8Z4uN16jYK60waVFhNpHWeyYvjB4gmg== X-Received: by 2002:a17:902:aa07:: with SMTP id be7mr6818499plb.242.1572047319332; Fri, 25 Oct 2019 16:48:39 -0700 (PDT) Return-Path: Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id cx22sm2817179pjb.19.2019.10.25.16.48.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Oct 2019 16:48:38 -0700 (PDT) From: John Stultz To: lkml Cc: Sandeep Patil , Laura Abbott , Benjamin Gaignard , Sumit Semwal , Liam Mark , Pratik Patel , Brian Starkey , "Andrew F . Davis" , Andrew Morton , Yue Hu , Mike Rapoport , Chenbo Feng , Alistair Strachan , Hridya Valsaraju , dri-devel@lists.freedesktop.org, John Stultz Subject: [RFC][PATCH 1/2] mm: cma: Export cma symbols for cma heap as a module Date: Fri, 25 Oct 2019 23:48:33 +0000 Message-Id: <20191025234834.28214-2-john.stultz@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191025234834.28214-1-john.stultz@linaro.org> References: <20191025234834.28214-1-john.stultz@linaro.org> From: Sandeep Patil Export cma_get_name, cma_alloc, cma_release, cma_for_each_area and dma_contiguous_default_area so that we can use these from the dmabuf cma heap when it is built as module. Cc: Laura Abbott Cc: Benjamin Gaignard Cc: Sumit Semwal Cc: Liam Mark Cc: Pratik Patel Cc: Brian Starkey Cc: Andrew F. Davis Cc: Andrew Morton Cc: Yue Hu Cc: Mike Rapoport Cc: Chenbo Feng Cc: Alistair Strachan Cc: Sandeep Patil Cc: Hridya Valsaraju Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sandeep Patil [jstultz: Rewrote commit message, added dma_contiguous_default_area to the set of exported symbols] Signed-off-by: John Stultz --- kernel/dma/contiguous.c | 1 + mm/cma.c | 5 +++++ 2 files changed, 6 insertions(+) -- 2.17.1 Acked-by: Sandeep Patil diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index 69cfb4345388..ff6cba63ea6f 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -31,6 +31,7 @@ #endif struct cma *dma_contiguous_default_area; +EXPORT_SYMBOL(dma_contiguous_default_area); /* * Default global CMA area size can be defined in kernel's .config. diff --git a/mm/cma.c b/mm/cma.c index 7fe0b8356775..db4642e58058 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -54,6 +55,7 @@ const char *cma_get_name(const struct cma *cma) { return cma->name ? cma->name : "(undefined)"; } +EXPORT_SYMBOL_GPL(cma_get_name); static unsigned long cma_bitmap_aligned_mask(const struct cma *cma, unsigned int align_order) @@ -500,6 +502,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align, pr_debug("%s(): returned %p\n", __func__, page); return page; } +EXPORT_SYMBOL_GPL(cma_alloc); /** * cma_release() - release allocated pages @@ -533,6 +536,7 @@ bool cma_release(struct cma *cma, const struct page *pages, unsigned int count) return true; } +EXPORT_SYMBOL_GPL(cma_release); int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data) { @@ -547,3 +551,4 @@ int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data) return 0; } +EXPORT_SYMBOL_GPL(cma_for_each_area);