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Thu, 27 Feb 2020 11:51:51 +0000 (GMT) From: Marek Szyprowski To: linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Marek Szyprowski , Nicolas Saenz Julienne , Florian Fainelli , bcm-kernel-feedback-list@broadcom.com, Lorenzo Pieralisi , Andrew Murray , Bjorn Helgaas Subject: [PATCH] pci: brcmstb: Fix build on 32bit ARM platforms with older compilers Date: Thu, 27 Feb 2020 12:51:46 +0100 Message-Id: <20200227115146.24515-1-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 X-Brightmail-Tracker: H4sIAAAAAAAAA0VSfSyUcRzfz/Pcc4/Ttadj85tMdaphQ1fanpWEaXtaVq1Q01xOnh26O3aP l1Qb0UpHDbXoNGReyltCV4c/Yuq0GypNL3cI1XQOGbZI6h6P6r/v522f77774oiokOeCx6uS abVKphBjAlT3YrHf+2TDCekO4yWc/PjgNp9suP4cJSuz4sil6W4+2Tw+yCMH2u5iZG+pASML TE180vpzwmbrHuKTOm0NFuhA1ZfWA0o70otReu0QnypvTqFaKjOoG621gGoxXqBMP1TUXLPb UftIgX8srYhPpdW+AdGCOMPkMEjqEJwrHtNjmWAM1wAch4QfrLBKNECAi4j7AN6bq0U0wN4G 5gG0LsRwwhyAZYszfFZgAzetH1BOqAFQl1PC44AtUfg9H2VdGCGBmikNxgpORC6ARW9nAQsQ os0Ojn4tWHU5EhFwpqQPYxdBiW2wZ9CLpYXEPjgzrEe4uk2wrukZwmYhkcuHlzsmUU4IgXe0 jRg3O0KLoXVtP1f4W19mxwWyARzta+BzIA/AgaxiwLn2QnPf0mozQnjCh22+HB0Eh6pWAHeZ 9fD91AaWRmxjoa4I4WghzLki4tzbodbQ+K+289WbtZ0p2Gtu5HF3jIKVAyYkH7hp/3eVA1AL nOkURimnmZ0qOs2HkSmZFJXc50yishnYPsW4Yph/CtqWY7oAgQPxOiGMjpCKeLJUJl3ZBSCO iJ2EjxbCpSJhrCz9PK1OPK1OUdBMF9iIo2Jn4a6Kb1EiQi5Lps/SdBKt/qva4fYumeDJ8Yz2 rTPv9qiGAz91VB873Gldzg2yYn7eCqEl67HFFOOoufi5+ou73ONI2ATjKi2zU46/DDgYWpW9 2XRV7O/3eiThVsu1SjdzaX5wyLCRVKAuFofiSHNe2CmP3gP9qGd1UyivA0vWJfbMloe7/7pT uGV3muP0obpgPbo/oV0iRpk4mcQLUTOyP6qm8sslAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrOLMWRmVeSWpSXmKPExsVy+t/xu7rha8PjDKa+M7C4tXIau8Xa3qMs FkuaMix+vTvCbrHp8TVWi8u75rBZnJ13nM1i4u0N7BZvfr8AKjtyl91i26zlbA7cHmvmrWH0 mHX/LJvHzll32T0WbCr12Lyk3qNvyypGj82nqz1u/8jz+LxJLoAzSs+mKL+0JFUhI7+4xFYp 2tDCSM/Q0kLPyMRSz9DYPNbKyFRJ384mJTUnsyy1SN8uQS/j+Ot7jAV7uCpmPNrJ1sD4iKOL kZNDQsBEYvKbmyxdjFwcQgJLGSUO79nKApGQkTg5rYEVwhaW+HOtiw2i6BOjxNObe8CK2AQM JbregiQ4OUQEehkljnzIBCliFtjHJNF4eBlzFyMHh7BAiMTvMwkgJouAqsSJa1og5bwCthLv 7+1khpgvL7F6wwHmCYw8CxgZVjGKpJYW56bnFhvqFSfmFpfmpesl5+duYgQG8rZjPzfvYLy0 MfgQowAHoxIPr0RCWJwQa2JZcWXuIUYJDmYlEd6NX0PjhHhTEiurUovy44tKc1KLDzGaAu2e yCwlmpwPjLK8knhDU0NzC0tDc2NzYzMLJXHeDoGDMUIC6YklqdmpqQWpRTB9TBycUg2Ms1w+ +4VfLP1wffXzPt0d705XV0i0OEze9N1a6saMLBXtuEKOVYvZs99UCB9Q5WNwzFcqs/m64bmp 7+31RtLznEO1fcpTfNUd1lm5+lYnd8z1MnrP/kutwmdLrH9I9bq5j29t5udkWsrQaV4Uqvxz y4Zo28S0qbm/eLqTFH6Lz5i1Qemu7X0lluKMREMt5qLiRADdBbMJegIAAA== X-CMS-MailID: 20200227115151eucas1p22ff7409009d917addcc7e20f523c9051 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20200227115151eucas1p22ff7409009d917addcc7e20f523c9051 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200227115151eucas1p22ff7409009d917addcc7e20f523c9051 References: Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Some older compilers have no implementation for the helper for 64-bit unsigned division/modulo, so linking pcie-brcmstb driver causes the "undefined reference to `__aeabi_uldivmod'" error. *rc_bar2_size is always a power of two, because it is calculated as: "1ULL << fls64(entry->res->end - entry->res->start)", so the modulo operation in the subsequent check can be replaced by a simple logical AND with a proper mask. Signed-off-by: Marek Szyprowski --- drivers/pci/controller/pcie-brcmstb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c index d20aabc26273..3a10e678c7f4 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -670,7 +670,7 @@ static inline int brcm_pcie_get_rc_bar2_size_and_offset(struct brcm_pcie *pcie, * outbound memory @ 3GB). So instead it will start at the 1x * multiple of its size */ - if (!*rc_bar2_size || *rc_bar2_offset % *rc_bar2_size || + if (!*rc_bar2_size || (*rc_bar2_offset & (*rc_bar2_size - 1)) || (*rc_bar2_offset < SZ_4G && *rc_bar2_offset > SZ_2G)) { dev_err(dev, "Invalid rc_bar2_offset/size: size 0x%llx, off 0x%llx\n", *rc_bar2_size, *rc_bar2_offset); -- 2.17.1