lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 22 Mar 2020 10:48:33 +0800 From: Dejin Zheng <zhengdejin5@...il.com> To: andrew@...n.ch, f.fainelli@...il.com, hkallweit1@...il.com, linux@...linux.org.uk, davem@...emloft.net, allison@...utok.net, tglx@...utronix.de, gregkh@...uxfoundation.org, mchehab+samsung@...nel.org, netdev@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Dejin Zheng <zhengdejin5@...il.com> Subject: [PATCH net-next v3 6/7] net: phy: introduce phy_read_poll_timeout macro it is sometimes necessary to poll a phy register by phy_read() function until its value satisfies some condition. introduce phy_read_poll_timeout() macros that do this. Suggested-by: Andrew Lunn <andrew@...n.ch> Signed-off-by: Dejin Zheng <zhengdejin5@...il.com> --- v2 -> v3: - modify the parameter order of newly added functions. phy_read_poll_timeout(val, cond, sleep_us, timeout_us, \ phydev, regnum) || \/ phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \ timeout_us) v1 -> v2: - pass a phydev and a regnum to replace args... parameter in the phy_read_poll_timeout(), and also handle the phy_read() function's return error. include/linux/phy.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/linux/phy.h b/include/linux/phy.h index 29718865242d..a23d6caf5c2c 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -714,6 +714,19 @@ static inline int phy_read(struct phy_device *phydev, u32 regnum) return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); } +#define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, timeout_us) \ +({ \ + int ret = 0; \ + ret = read_poll_timeout(phy_read, val, cond || val < 0, sleep_us, \ + timeout_us, phydev, regnum); \ + if (val < 0) \ + ret = val; \ + if (ret) \ + phydev_err(phydev, "%s failed: %d\n", __func__, ret); \ + ret; \ +}) + + /** * __phy_read - convenience function for reading a given PHY register * @phydev: the phy_device struct -- 2.25.0
Powered by blists - more mailing lists