From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
To: Qiang Zhao <qiang.zhao@nxp.com>, Li Yang <leoyang.li@nxp.com>,
Christophe Leroy <christophe.leroy@c-s.fr>
Cc: linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Scott Wood <oss@buserror.net>,
Timur Tabi <timur@kernel.org>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>
Subject: [PATCH v6 37/49] soc: fsl: qe: make cpm_muram_free() ignore a negative offset
Date: Thu, 28 Nov 2019 15:55:42 +0100 [thread overview]
Message-ID: <20191128145554.1297-38-linux@rasmusvillemoes.dk> (raw)
In-Reply-To: <20191128145554.1297-1-linux@rasmusvillemoes.dk>
This allows one to simplify callers since they can store a negative
value as a sentinel to indicate "this was never allocated" (or store
the -ENOMEM from an allocation failure) and then call cpm_muram_free()
unconditionally.
Reviewed-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
drivers/soc/fsl/qe/qe_common.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c
index 962835488f66..48c77bb92846 100644
--- a/drivers/soc/fsl/qe/qe_common.c
+++ b/drivers/soc/fsl/qe/qe_common.c
@@ -176,6 +176,9 @@ void cpm_muram_free(s32 offset)
int size;
struct muram_block *tmp;
+ if (offset < 0)
+ return;
+
size = 0;
spin_lock_irqsave(&cpm_muram_lock, flags);
list_for_each_entry(tmp, &muram_block_list, head) {
--
2.23.0
next prev parent reply other threads:[~2019-11-28 14:59 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-28 14:55 [PATCH v6 00/49] QUICC Engine support on ARM, ARM64, PPC64 Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 01/49] soc: fsl: qe: remove space-before-tab Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 02/49] soc: fsl: qe: drop volatile qualifier of struct qe_ic::regs Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 03/49] soc: fsl: qe: rename qe_(clr/set/clrset)bit* helpers Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 04/49] soc: fsl: qe: introduce qe_io{read,write}* wrappers Rasmus Villemoes
2021-01-19 17:33 ` Christophe Leroy
2021-01-19 17:46 ` Li Yang
2019-11-28 14:55 ` [PATCH v6 05/49] soc: fsl: qe: avoid ppc-specific io accessors Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 06/49] soc: fsl: qe: replace spin_event_timeout by readx_poll_timeout_atomic Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 07/49] soc: fsl: qe: qe.c: guard use of pvr_version_is() with CONFIG_PPC32 Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 08/49] soc: fsl: qe: drop unneeded #includes Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 09/49] soc: fsl: qe: drop assign-only high_active in qe_ic_init Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 10/49] soc: fsl: qe: remove pointless sysfs registration in qe_ic.c Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 11/49] soc: fsl: qe: use qe_ic_cascade_{low,high}_mpic also on 83xx Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 12/49] soc: fsl: qe: move calls of qe_ic_init out of arch/powerpc/ Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 13/49] powerpc/83xx: remove mpc83xx_ipic_and_qe_init_IRQ Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 14/49] powerpc/85xx: remove mostly pointless mpc85xx_qe_init() Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 15/49] soc: fsl: qe: move qe_ic_cascade_* functions to qe_ic.c Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 16/49] soc: fsl: qe: rename qe_ic_cascade_low_mpic -> qe_ic_cascade_low Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 17/49] soc: fsl: qe: remove unused qe_ic_set_* functions Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 18/49] soc: fsl: qe: don't use NO_IRQ in qe_ic.c Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 19/49] soc: fsl: qe: make qe_ic_get_{low,high}_irq static Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 20/49] soc: fsl: qe: simplify qe_ic_init() Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 21/49] soc: fsl: qe: merge qe_ic.h headers into qe_ic.c Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 22/49] soc: fsl: qe: qe.c: use of_property_read_* helpers Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 23/49] soc: fsl: qe: qe_io.c: don't open-code of_parse_phandle() Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 24/49] soc: fsl: qe: qe_io.c: access device tree property using be32_to_cpu Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 25/49] soc: fsl: qe: qe_io.c: use of_property_read_u32() in par_io_init() Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 26/49] soc: fsl: move cpm.h from powerpc/include/asm to include/soc/fsl Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 27/49] soc/fsl/qe/qe.h: update include path for cpm.h Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 28/49] serial: ucc_uart: explicitly include soc/fsl/cpm.h Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 29/49] serial: ucc_uart: replace ppc-specific IO accessors Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 30/49] serial: ucc_uart: factor out soft_uart initialization Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 31/49] serial: ucc_uart: stub out soft_uart_init for !CONFIG_PPC32 Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 32/49] serial: ucc_uart: use of_property_read_u32() in ucc_uart_probe() Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 33/49] serial: ucc_uart: limit brg-frequency workaround to PPC32 Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 34/49] serial: ucc_uart: access __be32 field using be32_to_cpu Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 35/49] soc: fsl: qe: change return type of cpm_muram_alloc() to s32 Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 36/49] soc: fsl: qe: make cpm_muram_free() return void Rasmus Villemoes
2019-11-28 14:55 ` Rasmus Villemoes [this message]
2019-11-28 14:55 ` [PATCH v6 38/49] soc: fsl: qe: drop broken lazy call of cpm_muram_init() Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 39/49] soc: fsl: qe: refactor cpm_muram_alloc_common to prevent BUG on error path Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 40/49] soc: fsl: qe: avoid IS_ERR_VALUE in ucc_slow.c Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 41/49] soc: fsl: qe: drop use of IS_ERR_VALUE in qe_sdma_init() Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 42/49] soc: fsl: qe: drop pointless check " Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 43/49] soc: fsl: qe: avoid IS_ERR_VALUE in ucc_fast.c Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 44/49] net/wan/fsl_ucc_hdlc: avoid use of IS_ERR_VALUE() Rasmus Villemoes
2019-12-02 22:51 ` Leo Li
2019-12-02 23:09 ` David Miller
2019-11-28 14:55 ` [PATCH v6 45/49] net/wan/fsl_ucc_hdlc: fix reading of __be16 registers Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 46/49] net/wan/fsl_ucc_hdlc: reject muram offsets above 64K Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 47/49] net: ethernet: freescale: make UCC_GETH explicitly depend on PPC32 Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 48/49] soc: fsl: qe: remove unused #include of asm/irq.h from ucc.c Rasmus Villemoes
2019-11-28 14:55 ` [PATCH v6 49/49] soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE Rasmus Villemoes
2019-12-01 16:10 ` [PATCH v6 00/49] QUICC Engine support on ARM, ARM64, PPC64 Timur Tabi
2019-12-02 8:12 ` Rasmus Villemoes
2019-12-02 22:56 ` Li Yang
2019-12-02 23:09 ` David Miller
2019-12-09 20:18 ` Li Yang
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